Editing intel/microarchitectures/ice lake (client)

{{intel title|Ice Lake (client)|arch}}
{{microarchitecture
|atype=CPU
|name=Ice Lake (client)
|designer=Intel
|manufacturer=Intel
|introduction=May 27, 2019
|process=10 nm
|isa=x86-64
|l1i=32 KiB
|l1i per=core
|l1i desc=8-way set associative
|l1d=48 KiB
|l1d per=core
|l1d desc=12-way set associative
|l1 per=core
|l2=512 KiB
|l2 per=512 KiB
|l2 desc=12-way set associative
|l3=2 MiB
|l3 per=core
|l3 desc=16-way set associative
|core name=Ice Lake Y
|core name 2=Ice Lake U
|predecessor=Cannon Lake
|predecessor link=intel/microarchitectures/cannon lake
|successor=Tiger Lake
|successor link=intel/microarchitectures/tiger lake
|contemporary=Ice Lake (server)
|contemporary link=intel/microarchitectures/ice_lake_(server)
}}
'''Ice Lake''' ('''ICL''') '''Client Configuration''' is [[Intel]]'s successor to {{\\|Cannon Lake}}, a [[10 nm]] [[microarchitecture]] for mainstream workstations, desktops, and mobile devices.

== Codenames ==
{| class="wikitable"
|-
! Core !! Abbrev !! Description !! Graphics !! Target
|-
| {{intel|Ice Lake Y|l=core}} || ICL-Y || Extremely low power ||  || 2-in-1s detachable, tablets, and computer sticks
|-
| {{intel|Ice Lake U|l=core}} || ICL-U || Ultra-low Power || || Light notebooks, portable All-in-Ones (AiOs), Minis, and conference room
|-
| {{intel|Ice Lake H|l=core}} || ICL-H || High-performance Graphics || || Ultimate mobile performance, mobile workstations
|-
| <s>{{intel|Ice Lake S|l=core}}</s>? || <s>ICL-S</s> || <s>Performance-optimized lifestyle</s> || || <s>Desktop performance to value, AiOs, and minis</s>
|}

== Process Technology==
{{see also|intel/microarchitectures/cannon lake#Process_Technology|l1=Cannon Lake § Process Technology}}
Ice Lake will use a second-generation enhanced [[10 nm process]] called "10 nm+". Versus the first generation 10nm which was used for Cannon Lake, 10nm+ will feature higher performance through higher drive current for the same power envelope.

[[File:intels 10+ and 10++.png|750px]]

{{clear}}

== Compiler support ==
Support for Ice Lake was added in LLVM Clang 6.0 and GCC 8.0.
{| class="wikitable"
|-
! Compiler !! Arch-Specific || Arch-Favorable
|-
| [[ICC]] || <code>-march=icelake</code> || <code>-mtune=icelake</code>
|-
| [[GCC]] || <code>-march=icelake</code> || <code>-mtune=icelake</code>
|-
| [[LLVM]] || <code>-march=icelake</code> || <code>-mtune=icelake</code>
|-
| [[Visual Studio]] || <code>/?</code> || <code>/tune:?</code>
|}

=== CPUID ===
{| class="wikitable tc1 tc2 tc3 tc4"
! Core !! Extended<br>Family !! Family !! Extended<br>Model !! Model
|-
| rowspan="2" | {{intel|Ice Lake U|U|l=core}}, {{intel|Ice Lake Y|Y|l=core}} || 0 || 0x6 || 0x7 || 0xE
|-
| colspan="4" | Family 6 Model 126
|-
| rowspan="2" | ? || 0 || 0x6 || ? || ?
|-
| colspan="4" | Family 6 Model ?
|}

== Architecture ==
Ice Lake comprises of {{\\|Sunny Cove}} cores on the {{intel|ring interconnect architecture}} along with {{\\|Gen11}} GPU, and an improved {{intel|System Agent}} with a new display engine and I/O.

=== Key changes from {{\\|Cannon Lake}}/{{\\|Skylake}}===
* Enhanced "10nm+" (from "10nm", 2nd gen)
* Core
** {{\\|Sunny Cove|Sunny Cove core}} (from {{\\|Palm Cove}})
*** ''See {{\\|Sunny Cove}} for microarchitectural details and changes''
* Memory
** 4 32-bit [[LPDDR4X]] channels (from 2 64-bit [[DDR4]] channels)
** 1.4x higher data rates (3733 MT/s, up from 2666 MT/s)
*** 1.5x higher memory bandwidth (60 GB/s, up from 40 GB/s)
* Graphics
** {{intel|Gen10|l=arch}} → {{intel|Gen11|l=arch}} graphics (''Gen10 was never productized'')
** {{intel|Gen11|l=arch}} GPUs
*** UHD Graphics 6xx (GT1) '''→''' UHD Graphics 9xx (GT2) (24 Execution Units, 2x EUs from {{\\|Gen9}})
*** UHD Graphics 6xx (GT2) '''→''' Iris Plus Graphics 9xx (GT2) (48-64 Execution Units, 2-2.6x EUs from {{\\|Gen9}})
**** 1,024 GFLOPS @ 1 GHz (GT2)
* Display
** Gen 11.5 (from Gen9/Gen9.5)
** DisplayPort 1.4a with Display Stream Compression(DSC) (from DisplayPort 1.2)
** [[HDMI]] 2.0b (from HDMI 1.4)
* IPU
** 4th Gen IPU (from 3rd Gen in {{\\|Skylake (client)|Skylake}})
** More cameras support
** New concurrent image pipeline
** on-die MIPI interface
* New Integration
** New Gaussian Neural Accelerator 1.0 (Added in {{\\|Cannon Lake}} but unclear to what extent) 
* I/O
** Thunderbolt 3 over Type-C
* Package
** New Type3, Type4 packages
*** New thin-film magnetic inductors

{{expand list}}

====New instructions ====
{{see also|intel/microarchitectures/sunny_cove#New_instructions|l1=Sunny Cove § New Instructions}}
Ice Lake introduced a number of {{x86|extensions|new instructions}}.

* {{x86|SHA|<code>SHA</code>}} - [[Hardware acceleration]] for SHA hashing operations 
* {{x86|CLWB|<code>CLWB</code>}} - Force cache line write-back without flush
* {{x86|RDPID|<code>RDPID</code>}} - Read Processor ID
* {{x86|AVX-512|<code>AVX-512</code>}} (originally introduced in {{\\|Skylake (Server)}} but only now in client)
** {{x86|AVX512F|<code>AVX512F</code>}} - AVX-512 Foundation
** {{x86|AVX512CD|<code>AVX512CD</code>}} - AVX-512 Conflict Detection
** {{x86|AVX512BW|<code>AVX512BW</code>}} - AVX-512 Byte and Word
** {{x86|AVX512DQ|<code>AVX512DQ</code>}} - AVX-512 Doubleword and Quadword 
** {{x86|AVX512VL|<code>AVX512VL</code>}} - AVX-512 Vector Length
* Additional {{x86|AVX-512}} extensions:
** {{x86|AVX512VPOPCNTDQ|<code>AVX512VPOPCNTDQ</code>}} -  AVX-512 Vector Population Count Doubleword and Quadword
** {{x86|AVX512VNNI|<code>AVX512VNNI</code>}} -  AVX-512 Vector Neural Network Instructions
** {{x86|AVX512GFNI|<code>AVX512GFNI</code>}} -  AVX-512 Galois Field New Instructions
** {{x86|AVX512VAES|<code>AVX512VAES</code>}} -  AVX-512 Vector AES
** {{x86|AVX512VBMI2|<code>AVX512VBMI2</code>}} -  AVX-512 Vector Bit Manipulation, Version 2
** {{x86|AVX512BITALG|<code>AVX512BITALG</code>}} -  AVX-512 Bit Algorithms
** {{x86|AVX512VPCLMULQDQ|<code>AVX512VPCLMULQDQ</code>}} -  AVX-512 Vector Vector Carry-less Multiply
* {{x86|SSE_GFNI|<code>SSE_GFNI</code>}} - SSE-based Galois Field New Instructions
* {{x86|AVX_GFNI|<code>AVX_GFNI</code>}} - AVX-based Galois Field New Instructions
* Split Lock Detection - detection and cause an exception for split locks
* Fast Short REP MOV

=== Block Diagram ===

==== Entire SoC Overview ====
[[File:ice lake soc block diagram.svg|900px]]

==== Individual Core ====
See {{intel|Sunny Cove#Block Diagram|Sunny Cove § Block Diagram|l=arch}}.

==== Gen11 Graphics ====
See {{intel|Gen11#Block Diagram|Gen11 Graphics § Block Diagram|l=arch}}.

== Overview ==
[[File:ice lake overview.svg|right|500px]]
The Ice Lake [[system on a chip]] is a [[10-nanometer]] SoC aimed at mainstream to premium mobile and thin & light market. The microprocessor consists of five major components: CPU cores, LLC, {{intel|ring interconnect}}, {{intel|system agent}}, and {{\\|Gen11}} graphics. While a lot of what Ice Lake provides is inherited from the prior generations, Intel claims that every IP on Ice Lake has been enhanced in one way or another. A major enhancement in Ice Lake over the prior generation is the integration of up to four {{\\|Sunny Cove}} cores which provide a significant uplift in IPC. Those cores also bring {{x86|AVX-512}} support for the client market. Those cores, along with the system agent and the GPU, are linked over Intel's {{intel|ring interconnect}}. The chip is fed through a new [[integrated memory controller]] that supports quad-channel 32-bit LPDDR4X memory, providing bandwidths in the range of 50-60 GB/s. Ice Lake has a new integrated GPU which is based on their {{\\|Gen11}} microarchitecture which provides a large improvement in graphics performance.

The system architecture in Ice Lake has been redesigned. Intel added a new Gaussian Neural Accelerator (GNA) for the acceleration of inference applications. There is a new 4th-generation [[image processing unit]] (IPU). There is a new Thunderbolt 3 integration. Ice Lake has four Thunderbolt 3 ports. All four ports have the same capabilities and can be used simultaneously at full performance at up to 40 Gbps per port. Intel also upgraded the display engine to {{\\|Gen11}} with an improved display pipe that has a new Adaptive Sync and HDR-capable display pipes that support HDR 3 and DisplayPort 1.4, supporting error correction and compression.

Ice Lake chips integrate the {{intel|PCH}} die on-package communicating over the on-package interconnect (OPI). The new PCH  The PCH has an expanded I/O support for PCIe, USB, SATA, as well as audio DSP for load power voice processing. It also integrates WiFi 6+ {{intel|CNVi}}.

On the platform level, there is a new integrated power delivery (FIVR) on both the PCH and the CPU which Intel says allows them to save on platform area by about 15% and it reduces the power delivery rails for the OEMs by roughly half.

== Core ==
{{empty section}}

== IPU ==
Ice Lake incorporates 4th generation [[image processing unit]] (IPU). The IPU was first introduced with {{\\|Skylake (client)|Skylake}} mobile SoCs (note that those were 3rd gen). The 4th Gen IPU found in Ice Lake introduces a number of new enhancements. It introduces new support for 4K video capture at 30fps. There is also new hardware support for better de-noising which supports up to 16 megapixels stills in low light conditions. In addition for support more camera simultaneously, the IPU incorporates a new concurrent image pipeline, supporting multiple different processing from the same camera stream, allowing a single camera to take the functionality of multiple sensors. A common example of that is devices with both IR and RGB cameras in the laptop bezel which can now be changed to a single camera. Intel says they are exposing more registers from the IPU to software in order to provide more flexibility for applications that make use of that for machine learning. It’s also worth noting that Intel integrated the MIPI interface onto the processor as well. Previously that was found on the chipset. The change significantly improves the latency, a required attribute needed for more advanced ML-specific applications. Some of those changes are designed to form the foundation for future generations of improvements.

== Clock domains ==
Ice Lake is divided into a number of [[clock domains]], each controlling the clock frequency of their respective unit in the processor. All clock domains are some multiple of the [virtual] bus clock ([[BCLK]]).

* '''BCLK''' - Bus/Base Clock - The system bus interface frequency (once upon a time referred to the actual [[FSB]] speed, it now serves as only a base clock reference for all other clock domains). The base clock is 100 MHz.
* '''Core Clock''' - The frequency at which the core and the [[L1]]/[[L2]] caches operate at. (Frequency depends on the model and is represented as a multiple of BCLK).
* '''Ring Clock''' - The frequency at which the ring interconnect and [[L3$|LLC]] operate at. Data from/to the individual cores are read/written into the L3 at a rate of 32B/cycle operating at Ring Clock frequency.
* '''IGP Clock''' - The frequency at which the [[integrated graphics]] ({{\\|Gen11}} GPU) operates at. Data from/to the GPU are read/written into the LLC at a rate of 64B/cycle operating at this frequency as well.
* '''IPU''' - The frequency at which the [[image processing unit]] operates at
* '''MemClk''' - Memory Clock - The frequency at which the system DRAM operates at. DRAM data is transferred at a rate of 8B/cycle operating at MemClk frequency.

[[File:ice lake soc clock domain block diagram.svg|850px]]

== Packaging ==
Ice Lake comes in two packagings.

{| class="wikitable"
|-
! Package !! Type3 !! Type4
|-
| Core || {{intel|Ice Lake U|l=core}} || {{intel|Ice Lake Y|l=core}}
|-
| TDP || 15 W || 9 W
|-
| Dimensions || 50 x 25 x 1.3 mm || 26.5 x 18.5 x 1.0 mm
|-
| Balls || 1526 balls || 1377 balls
|-
| Ball Pitch || 0.65 mm || 0.43 mm
|-
| Package (Front) || [[File:ice lake u (front).png|250px]] || [[File:ice lake y (front).png|200px]]
|-
| Package (Back) ||  [[File:ice lake u (back).png|250px]] || [[File:ice lake y (back).png|200px]]
|}

=== Thin-film magnetic inductor ===
Interestingly the new packages include a thin-film magnetic inductor array on the landing side. Those are said to have higher efficiency at lower power but also support the fully processor dynamic frequency range. They can be distinctly seen on the back of the chip.

== Die ==
=== System Agent ===
* System Agent
** 4th Gen IPU
** Gen11 Display
** Thunderbolt 3 over Type-C I/O subsystem


:[[File:ice lake die sa.png|700px]]


:[[File:ice lake die sa (annotated).png|700px]]

==== IPU ====
:[[File:ice lake die ipu.png|500px]]


:[[File:ice lake die ipu 2.png|500px]]

==== Display engine ====
:[[File:ice lake die display engine.png|500px]]


:[[File:ice lake die display engine 2.png|500px]]

==== Thunderbolt 3 I/O subsystem ====
:[[File:ice lake die tb3 io subsystem.png|500px]]


:[[File:ice lake die tb3 io subsystem 2.png|500px]]

=== Core ===
{{see also|intel/microarchitectures/sunny_cove#Die|l1=Sunny Cove § Die}}
* ~6.91 mm² die size
** ~3.5 mm x ~1.97 mm

:[[File:ice lake die core.png|400px]]


:[[File:ice lake die core (annotated).png|400px]]


:[[File:ice lake die core 2.png|500px]]

=== Core group ===
{{see also|intel/microarchitectures/sunny_cove#Die|l1=Sunny Cove § Die}}
* ~30.73 mm² die size
** ~7.86 mm x ~3.91 mm


:[[File:ice lake die core group.png|700px]]


:[[File:ice lake die core group (annotated).png|700px]]


:[[File:ice lake die core group 2.png|700px]]


=== Integrated graphics ===
* {{\\|Gen11}} GPU
* 64 EUs
* ~41.1 mm² silicon area
** ~5.22 mm x ~7.86 mm
:[[File:ice lake die gpu.png|700px]]


:[[File:ice lake die gpu (annotated).png|700px]]


:[[File:ice lake die gpu 2.png|800px]]

=== SoC ===
* [[10 nm process]]
* ~122.52 mm² die size
** ~11.44 mm x ~10.71 mm
* 4 {{\\|Sunny Cove}} [[big cores]]
* 64-EU {{\\|Gen11}} GPU
* 4th Gen IPU


:[[File:ice lake die (quad core).png|class=wikichip_ogimage|700px]]


:[[File:ice lake die (quad core) (annotated).png|700px]]


:[[File:ice lake die.png|800px]]

=== PCH ===
* [[14 nm process]]
* ~53.76 mm² die size
** ~5.69 mm x 9.45 mm


:[[File:ice lake pch die.png|700px]]

== All Ice Lake Chips ==
{{future information}}

<!-- NOTE: 
           This table is generated automatically from the data in the actual articles.
           If a microprocessor is missing from the list, an appropriate article for it needs to be
           created and tagged accordingly.

           Missing a chip? please dump its name here: https://en.wikichip.org/wiki/WikiChip:wanted_chips
-->
{{comp table start}}
<table class="comptable sortable tc7 tc8 tc20 tc21">
{{comp table header|main|20:List of Ice Lake-based Processors}}
{{comp table header|main|10:Main processor|4:{{intel|Turbo Boost}}|Memory|3:GPU|2:Features}}
{{comp table header|cols|Launched|Price|Family|Platform|Core|Cores|Threads|L3$|TDP|Base|1 Core|2 Cores|4 Cores|6 Cores|Max Memory|Name|Base|Burst|{{intel|TBT}}|{{intel|Hyper-Threading|HT}}}}
{{#ask: [[Category:microprocessor models by intel]] [[microarchitecture::Ice Lake]]
 |?full page name
 |?model number
 |?first launched
 |?release price
 |?microprocessor family
 |?platform
 |?core name
 |?core count
 |?thread count
 |?l3$ size
 |?tdp
 |?base frequency#GHz
 |?turbo frequency (1 core)#GHz
 |?turbo frequency (2 cores)#GHz
 |?turbo frequency (4 cores)#GHz
 |?turbo frequency (6 cores)#GHz
 |?max memory#GiB
 |?integrated gpu
 |?integrated gpu base frequency
 |?integrated gpu max frequency
 |?has intel turbo boost technology 2_0
 |?has simultaneous multithreading
 |format=template
 |template=proc table 3
 |userparam=21
 |mainlabel=-
}}
{{comp table count|ask=[[Category:microprocessor models by intel]] [[microarchitecture::Ice Lake]]}}
</table>
{{comp table end}}

== Bibliography ==
* Intel 2018 Architecture Day.
* Intel. ''personal communication''. 2019.
@@ Line 7: / Line 7: @@
 |introduction=May 27, 2019
 |process=10 nm
-|cores=2
-|cores 2=4
-|type=Superscalar
-|oooe=Yes
-|speculative=Yes
-|renaming=Yes
-|stages min=14
-|stages max=19
-|decode=5-way
 |isa=x86-64
-|extension=MOVBE
-|extension 2=MMX
-|extension 3=SSE
-|extension 4=SSE2
-|extension 5=SSE3
-|extension 6=SSSE3
-|extension 7=SSE4.1
-|extension 8=SSE4.2
-|extension 9=POPCNT
-|extension 10=AVX
-|extension 11=AVX2
-|extension 12=AES
-|extension 13=PCLMUL
-|extension 14=FSGSBASE
-|extension 15=RDRND
-|extension 16=FMA3
-|extension 17=F16C
-|extension 18=BMI
-|extension 19=BMI2
-|extension 20=VT-x
-|extension 21=VT-d
-|extension 22=TXT
-|extension 23=TSX
-|extension 24=RDSEED
-|extension 25=ADCX
-|extension 26=PREFETCHW
-|extension 27=CLFLUSHOPT
-|extension 28=XSAVE
-|extension 29=SGX
-|extension 30=MPX
-|extension 31=AVX-512
 |l1i=32 KiB
 |l1i per=core
@@ Line 54: / Line 14: @@
 |l1d per=core
 |l1d desc=12-way set associative
+|l1 per=core
 |l2=512 KiB
-|l2 per=core
+|l2 per=512 KiB
-|l2 desc=8-way set associative
+|l2 desc=12-way set associative
 |l3=2 MiB
 |l3 per=core
@@ Line 69: / Line 30: @@
 |contemporary link=intel/microarchitectures/ice_lake_(server)
 }}
-'''Ice Lake''' ('''ICL''') '''Client Configuration''' is [[Intel]]'s successor to {{\\|Cannon Lake}}, a [[10 nm]] [[microarchitecture]] for mainstream mobile devices.
+'''Ice Lake''' ('''ICL''') '''Client Configuration''' is [[Intel]]'s successor to {{\\|Cannon Lake}}, a [[10 nm]] [[microarchitecture]] for mainstream workstations, desktops, and mobile devices.
-For mobile devices, Ice Lake is branded as 10th Generation Core i3, i5, and i7 processors.
 == Codenames ==
@@ Line 86: / Line 45: @@
 | <s>{{intel|Ice Lake S|l=core}}</s>? || <s>ICL-S</s> || <s>Performance-optimized lifestyle</s> || || <s>Desktop performance to value, AiOs, and minis</s>
 |}
-== Lead ==
-* '''Ophir Edlis''' - Senior Principal Engineer & Lead Architect Ice Lake SoC
 == Process Technology==
-{{main|10_nm_lithography_process#Intel|l1=Intel's 10-nanometer process}}
+{{see also|intel/microarchitectures/cannon lake#Process_Technology|l1=Cannon Lake § Process Technology}}
-Prolong delays with Intel's 10-nanometer process due to yield issues meant the terminology around that process was changed over time. Ice Lake is fabricated on Intel's second-generation enhanced [[10 nm process]]. Originally the process was meant to succeed first-generation which was used for {{\\|Cannon Lake}}. Unfortunately due to yield and performance reasons, Intel re-designated 2nd-generation as 1st-generation (ignoring {{\\|Cannon Lake}}), hence the plain name of "10nm" (without any pluses).
+Ice Lake will use a second-generation enhanced [[10 nm process]] called "10 nm+". Versus the first generation 10nm which was used for Cannon Lake, 10nm+ will feature higher performance through higher drive current for the same power envelope.
-Intel says that Ice Lake is built on their learnings from their Cannon Lake chip which were largely treated as a learning vehicle. Between Cannon Lake and Ice Lake, a number of changes were made in order to improve the process for their products. One such change was the addition of an extra metal layer (originally said to be 12, is now presumably 13 on Ice Lake) in order to improve the power delivery of the chip. Additionally, they have improved the threshold voltage of the transistors as well as their MIM cap among other changes.
+[[File:intels 10+ and 10++.png|750px]]
 {{clear}}
@@ Line 141: / Line 97: @@
 ** {{intel|Gen10|l=arch}} → {{intel|Gen11|l=arch}} graphics (''Gen10 was never productized'')
 ** {{intel|Gen11|l=arch}} GPUs
-*** UHD Graphics 6xx (GT1) '''→''' UHD Graphics 9xx (GT2) (32 Execution Units, 2.67x EUs from {{\\|Gen9}})
+*** UHD Graphics 6xx (GT1) '''→''' UHD Graphics 9xx (GT2) (24 Execution Units, 2x EUs from {{\\|Gen9}})
 *** UHD Graphics 6xx (GT2) '''→''' Iris Plus Graphics 9xx (GT2) (48-64 Execution Units, 2-2.6x EUs from {{\\|Gen9}})
 **** 1,024 GFLOPS @ 1 GHz (GT2)
@@ Line 160: / Line 116: @@
 ** New Type3, Type4 packages
 *** New thin-film magnetic inductors
-*** 100μm [[copper pillars]] (from 130μm on [[14 nm]])
 {{expand list}}
@@ Line 203: / Line 158: @@
 == Overview ==
 [[File:ice lake overview.svg|right|500px]]
-The Ice Lake [[system on a chip]] is a [[10-nanometer]] SoC that is aimed at the mainstream to premium mobile and the thin-and-light market. The microprocessor consists of five major components: CPU cores, LLC, {{intel|ring interconnect}}, {{intel|system agent}}, and {{\\|Gen11}} graphics. While a lot of what Ice Lake provides is inherited from the prior generations, Intel claims that every IP on Ice Lake has been enhanced in one way or another. A major enhancement in Ice Lake over the prior generation is the integration of up to four {{\\|Sunny Cove}} cores which provide a significant uplift in IPC. Those cores also bring {{x86|AVX-512}} support for the client market. Those cores, along with the system agent and the GPU, are linked over Intel's {{intel|ring interconnect}}. The chip is fed through a new [[integrated memory controller]] that supports quad-channel 32-bit LPDDR4X memory, providing bandwidths in the range of 50-60 GB/s. Ice Lake has a new integrated GPU which is based on their {{\\|Gen11}} microarchitecture which provides a large improvement in graphics performance.
+The Ice Lake [[system on a chip]] is a [[10-nanometer]] SoC aimed at mainstream to premium mobile and thin & light market. The microprocessor consists of five major components: CPU cores, LLC, {{intel|ring interconnect}}, {{intel|system agent}}, and {{\\|Gen11}} graphics. While a lot of what Ice Lake provides is inherited from the prior generations, Intel claims that every IP on Ice Lake has been enhanced in one way or another. A major enhancement in Ice Lake over the prior generation is the integration of up to four {{\\|Sunny Cove}} cores which provide a significant uplift in IPC. Those cores also bring {{x86|AVX-512}} support for the client market. Those cores, along with the system agent and the GPU, are linked over Intel's {{intel|ring interconnect}}. The chip is fed through a new [[integrated memory controller]] that supports quad-channel 32-bit LPDDR4X memory, providing bandwidths in the range of 50-60 GB/s. Ice Lake has a new integrated GPU which is based on their {{\\|Gen11}} microarchitecture which provides a large improvement in graphics performance.
-The system architecture in Ice Lake has been redesigned. Intel added a new Gaussian Neural Accelerator (GNA) for the acceleration of inference applications. There is a new 4th-generation [[image processing unit]] (IPU). Ice Lake integrates the entire Thunderbolt 3 I/O subsystem on-die, significantly simplifying support at the system level. Ice Lake has four Thunderbolt 3 ports. All four ports have the same capabilities and can be used simultaneously at full performance at up to 40 Gbps per port. Intel also upgraded the display engine to {{\\|Gen11}} with an improved display pipe that has a new Adaptive Sync and HDR-capable display pipes that support HDR 3 and DisplayPort 1.4, supporting error correction and compression.
+The system architecture in Ice Lake has been redesigned. Intel added a new Gaussian Neural Accelerator (GNA) for the acceleration of inference applications. There is a new 4th-generation [[image processing unit]] (IPU). There is a new Thunderbolt 3 integration. Ice Lake has four Thunderbolt 3 ports. All four ports have the same capabilities and can be used simultaneously at full performance at up to 40 Gbps per port. Intel also upgraded the display engine to {{\\|Gen11}} with an improved display pipe that has a new Adaptive Sync and HDR-capable display pipes that support HDR 3 and DisplayPort 1.4, supporting error correction and compression.
 Ice Lake chips integrate the {{intel|PCH}} die on-package communicating over the on-package interconnect (OPI). The new PCH  The PCH has an expanded I/O support for PCIe, USB, SATA, as well as audio DSP for load power voice processing. It also integrates WiFi 6+ {{intel|CNVi}}.
@@ Line 214: / Line 169: @@
 {{empty section}}
-== Integration ==
+== IPU ==
-Ice Lake integrates a number of additional components:
-* 4th Generation [[image processing unit]]
-* A new GNA [[neural processor]]
-* A new Thunderbolt I/O subsystem
-=== GNA ===
-Ice Lake introduced a new low-power [[neural processor]] called the '''Gaussian Neural Accelerator v1.0''' ('''GNA''') which is integrated on the SoC and runs at very low power even when the GPU and CPUs are turned off. The GNA can be used for long-running tasks (e.g., real-time meeting transcription). The GNA can operate while the remaining parts of the SoC are in idle in order to have minimal impact on performance.
-=== IPU ===
 Ice Lake incorporates 4th generation [[image processing unit]] (IPU). The IPU was first introduced with {{\\|Skylake (client)|Skylake}} mobile SoCs (note that those were 3rd gen). The 4th Gen IPU found in Ice Lake introduces a number of new enhancements. It introduces new support for 4K video capture at 30fps. There is also new hardware support for better de-noising which supports up to 16 megapixels stills in low light conditions. In addition for support more camera simultaneously, the IPU incorporates a new concurrent image pipeline, supporting multiple different processing from the same camera stream, allowing a single camera to take the functionality of multiple sensors. A common example of that is devices with both IR and RGB cameras in the laptop bezel which can now be changed to a single camera. Intel says they are exposing more registers from the IPU to software in order to provide more flexibility for applications that make use of that for machine learning. It’s also worth noting that Intel integrated the MIPI interface onto the processor as well. Previously that was found on the chipset. The change significantly improves the latency, a required attribute needed for more advanced ML-specific applications. Some of those changes are designed to form the foundation for future generations of improvements.
-=== Thunderbolt IO subsystem ===
-By far the largest new integration in Ice Lake is the Thunderbolt I/O Subsystem. According to Intel, this is the largest integration they have done since the integration of the graphics processing unit in {{\\|Sandy Bridge}}. When Ice Lake was introduced, [[Thunderbolt 3]] was the fastest and most versatile connector that was available. Not only is it four times faster than USB 3.1, but it also supports additional peripherals over [[PCIe]], [[USB 3.1]], and DisplayPort, though note that only [[PCIe]] and [[DisplayPort]] tunnel over Thunderbolt while the [[USB 3.1]] is MUXed over them for direct USB support.
-Ice Lake contains two modular FIAs, each one connect to a pair of Type-C ports for a total of four ports. The FIA can multiplex between a standard [[USB Type-C connector]] and a [[Thunderbolt connector]]. When serving USB 3.1, the FIA can serve as a standard USB Type-C connection, while when using PCIe/DP, it tunnels over Thunderbolt alternate mode. Each FIA is connected to the USB controller, Display Engine, and the CIO Router. The CIO Router is the actual Thunderbolt router and it can be thought of as a display engine as well. Ice Lake has a total of four PCIe controllers coming from four root complexes. Two PCIe controllers go to each of the CIOs. Previously, there was just a single PCIe controller going to the Titan Ridge controller, so there was effectively one PCIe controller for both ports. Compared to the prior generation, each port now effectively has double the bandwidth.
-:[[File:ice lake io subsystem.svg|center|800px]]
-{{center|'''Figure: Ice Lake Thunderbolt 3 I/O Subsystem'''}}
-Previously (e.g., with {{\\|Whiskey Lake}}), for OEMs to support Thunderbolt 3 in mobile devices, they had to use Intel's Titan Ridge controller. Titan Ridge was a discrete Thunderbolt 3 chip that came with either one or two dedicated [[Thunderbolt 3]] ports. In order to support everything that was necessary (e.g., legacy [[USB 2]] as well as high speed PCIe Gen 3), the controller was connected to both the CPU and the chipset. The chipset was connected over four PCIe Gen 3 lanes. The CPU had two DisplayPort connections. Each of those passed over four PCIe Gen 3 lanes. In order to offer legacy I/O support, a direct USB 2.0 link from the PCH went to the port. For charging capabilities, the port was also connected directly to a Power Deliver (PD) controller. In total, 17 PCIe Gen 3 lanes operating at around 8 GT/s were required between the Titan Ridge controller and the chipset and CPU.
-Due to the design complexity introduced by the discrete controller, most mobile devices that made use of Titan Ridge only supported it on one side of the device - typically on the side of the device closer to the controller itself.
-:[[File:intel type-c old.svg|center|500px]]
-{{center|'''Figure: Thunderbolt 3 support using the Titan Ridge controller'''}}
-With Ice Lake, Intel simplified the overall design considerably. The biggest change comes from the fact that most of the Titan Ridge logic has been integrated into the Ice Lake SoC itself, reducing board space, routing, and the overall [[bill of materials]]. Instead of the seventeen lanes that were required by the Titan Ridge controller, Ice Lake exposes just eight lanes – four lanes to each [[retimer]] which drive the signals to the connectors. Therefore, in total there are just eight lanes operating at 20 GT/s instead of seventeen lanes operating at 8 GT/s (note that number includes the 8.1 GT/s DP links). The reduction of lanes, along with their associated components such as the buffers, reduces the overall power consumption of the system. Intel stated that, depending on the exact device design, they saw a reduction of up to 300 mW per port when the port was fully utilized. Previously, the dual-port Titan Ridge controller had a TDP of up to 2.4 W, so the overall saving is fairly sizable. The additional power saving thus translates to better performance as more of the overall power budget can be allocated for the GPU and CPU instead of the I/O.
-One of the other benefits of the Thunderbolt 3 integration is that half of the lanes can be exposed to each side of the device. With the Titan Ridge controller, offering Type-C ports on the side further from the controller was more complex and was quite rare and most OEMs simply opted to offer a legacy connector of some sort such as a USB 2.0 on that side. With Ice Lake, the direct Thunderbolt lanes that go to each retimer are easily exposed to both sides of the device, meaning, at least in theory, OEMs should have no problem offering symmetrical connections on both sides of the device.
-:[[File:intel type-c ice lake.svg|center|700px]]
-{{center|'''Figure: Thunderbolt 3 support on Ice Lake through the Thunderbolt 3 integration'''}}
-Like Titan Ridge, each retimer supports two ports. The retimers themselves are still only sold by Intel but they are a fraction of the size, so there is also a modest board space saving advantage as well. Therefore, actually, the diagram above is almost identical when offering support for up to four Thunderbolt 3 ports, twice as many as most Titan Ridge-based designs. For full support, those additional ports just need a new dedicated USB 2 connection to the PCH, and in order to also offer charging capabilities through that port, you also need a PD controller. Premium-design laptop should, therefore, be able to have up to four Thunderbolt ports – each supporting everything from power delivery to the legacy I/O to the latest high-speed interfaces such as DisplayPort and USB 3.1.
-:[[File:intel type-c ice lake 4p.svg|center|700px]]
-{{center|'''Figure: Thunderbolt 3 support on Ice Lake through the Thunderbolt 3 integration<br>Full configuration with four ports and every feature through every port'''}}
 == Clock domains ==
@@ Line 280: / Line 183: @@
 [[File:ice lake soc clock domain block diagram.svg|850px]]
-== Power ==
-=== Dynamic Tuning 2.0 ===
-{{main|intel/dynamic_tuning|l1=Intel Dynamic Tuning}}
-{{empty section}}
 == Packaging ==
@@ Line 309: / Line 207: @@
 === Thin-film magnetic inductor ===
-The new Ice Lake packages include a thin-film magnetic inductor array on the landing side. Those are said to have higher efficiency at lower power but also support the fully processor dynamic frequency range. They can be distinctly seen on the back of the chip.
+Interestingly the new packages include a thin-film magnetic inductor array on the landing side. Those are said to have higher efficiency at lower power but also support the fully processor dynamic frequency range. They can be distinctly seen on the back of the chip.
 == Die ==
@@ Line 409: / Line 307: @@
 == All Ice Lake Chips ==
+{{future information}}
 <!-- NOTE:
             This table is generated automatically from the data in the actual articles.
@@ Line 417: / Line 317: @@
 -->
 {{comp table start}}
-<table class="comptable sortable tc7 tc8 tc19 tc20">
+<table class="comptable sortable tc7 tc8 tc20 tc21">
-{{comp table header|main|19:List of Ice Lake-based Processors}}
+{{comp table header|main|20:List of Ice Lake-based Processors}}
-{{comp table header|main|10:Main processor|3:{{intel|Turbo Boost}}|Memory|3:GPU}}
+{{comp table header|main|10:Main processor|4:{{intel|Turbo Boost}}|Memory|3:GPU|2:Features}}
-{{comp table header|cols|Launched|Price|Family|Platform|Core|Cores|Threads|L3$|TDP|Base|1 Core|2 Cores|4 Cores|Max Memory|Name|Base|Burst}}
+{{comp table header|cols|Launched|Price|Family|Platform|Core|Cores|Threads|L3$|TDP|Base|1 Core|2 Cores|4 Cores|6 Cores|Max Memory|Name|Base|Burst|{{intel|TBT}}|{{intel|Hyper-Threading|HT}}}}
-{{#ask: [[Category:microprocessor models by intel]] [[microarchitecture::Ice Lake (Client)]]
+{{#ask: [[Category:microprocessor models by intel]] [[microarchitecture::Ice Lake]]
   |?full page name
   |?model number
@@ Line 437: / Line 337: @@
   |?turbo frequency (2 cores)#GHz
   |?turbo frequency (4 cores)#GHz
+ |?turbo frequency (6 cores)#GHz
   |?max memory#GiB
   |?integrated gpu
   |?integrated gpu base frequency
   |?integrated gpu max frequency
+ |?has intel turbo boost technology 2_0
+ |?has simultaneous multithreading
   |format=template
   |template=proc table 3
-  |userparam=19
+  |userparam=21
   |mainlabel=-
 }}
-{{comp table count|ask=[[Category:microprocessor models by intel]] [[microarchitecture::Ice Lake (Client)]]}}
+{{comp table count|ask=[[Category:microprocessor models by intel]] [[microarchitecture::Ice Lake]]}}
 </table>
 {{comp table end}}
codename	Ice Lake (client) +
core count	2 + and 4 +
designer	Intel +
first launched	May 27, 2019 +
full page name	intel/microarchitectures/ice lake (client) +
instance of	microarchitecture +
instruction set architecture	x86-64 +
manufacturer	Intel +
microarchitecture type	CPU +
name	Ice Lake (client) +
pipeline stages (max)	19 +
pipeline stages (min)	14 +
process	10 nm (0.01 μm, 1.0e-5 mm) +