Difference between revisions of "intel/core i7/i7-7820x"

	Edit Values
	Core i7-7820X
	General Info
Designer	Intel
Manufacturer	Intel
Model Number	i7-7820X
Part Number	BX80673I77820X,; BXC80673I77820X,; CD8067303611000
S-Spec	SR3L5
Market	Desktop
Introduction	May 30, 2017 (announced); June 26, 2017 (launched)
Release Price	$599
Shop	Amazon
	General Specs
Family	Core i7
Series	i7-7000
Locked	No
Frequency	3,600 MHz
Turbo Frequency	Yes
Turbo Frequency	4,300 MHz (1 core),; 4,300 MHz (2 cores)
Bus type	DMI 3.0
Bus rate	4 × 8 GT/s
Clock multiplier	36
	Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Skylake (server)
Platform	Skylake
Chipset	Lewisburg
Core Name	Skylake X
Core Family	6
Core Model	85
Core Stepping	U0
Process	14 nm
Technology	CMOS
Word Size	64 bit
Cores	8
Threads	16
Max Memory	128 GiB
	Multiprocessing
Max SMP	1-Way (Uniprocessor)
	Electrical
TDP	140 W
Tjunction	0 °C – 99 °C
Tstorage	-25 °C – 125 °C
	Packaging
Package	FCLGA-2066 (LGA)
Dimension	52.5 mm × 45 mm
Pitch	1.016 mm
Contacts	2066
Socket	Socket R4

Latest revision as of 07:01, 27 February 2019

Core i7-7820X is a 64-bit octa-core high-performance x86 desktop microprocessor introduced by Intel in mid-2017. This chip, which is based on the Skylake microarchitecture, is fabricated on Intel's enhanced 14nm+ process. The i7-7820X operates at 3.6 GHz with a TDP of 140 W and a Turbo Boost frequency of 4.3 GHz. The processor supports up to 128 GiB of quad-channel DDR4-2666 memory.

In addition to its Turbo Boost frequency, the i7-7820X has a Turbo Max frequency of 4.5 GHz.

Cache[edit]

Main article: Skylake § Cache

[Edit/Modify Cache Info]

Cache Organization

Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory.

The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC.

Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies.

Note: All units are in kibibytes and mebibytes.

L1$

512 KiB

524,288 B
0.5 MiB

L1I$	256 KiB 262,144 B 0.25 MiB	8x32 KiB	8-way set associative
L1D$	256 KiB 262,144 B 0.25 MiB	8x32 KiB	8-way set associative	write-back

L2$

8 MiB

8,192 KiB
8,388,608 B
0.00781 GiB

		8x1 MiB	16-way set associative	write-back

L3$

11 MiB

11,264 KiB
11,534,336 B
0.0107 GiB

		8x1.375 MiB	11-way set associative	write-back

Memory controller[edit]

[Edit/Modify Memory Info]

Integrated Memory Controller

Max Type	DDR4-2666
Supports ECC	No
Channels	4
Max Bandwidth	79.47 GiB/s 81,377.28 MiB/s 85.33 GB/s 85,330.263 MB/s 0.0776 TiB/s 0.0853 TB/s
Bandwidth	Single 19.89 GiB/s Double 39.72 GiB/s Quad 79.47 GiB/s

Expansions[edit]

[Edit/Modify Expansions Info]

Expansion Options

PCIe	Revision: 3.0
	Max Lanes: 28
	Configuration: 1x16+1x8+1x4, 3x8+1x4

Graphics[edit]

This processor has no integrated graphics.

Features[edit]

[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX	MMX Extension
EMMX	Extended MMX Extension
SSE	Streaming SIMD Extensions
SSE2	Streaming SIMD Extensions 2
SSE3	Streaming SIMD Extensions 3
SSSE3	Supplemental SSE3
SSE4.1	Streaming SIMD Extensions 4.1
SSE4.2	Streaming SIMD Extensions 4.2
AVX	Advanced Vector Extensions
AVX2	Advanced Vector Extensions 2
AVX-512	Advanced Vector 512-bit (2 Units)
AVX512F	AVX-512 Foundation
AVX512CD	AVX-512 Conflict Detection
AVX512BW	AVX-512 Byte and Word
AVX512DQ	AVX-512 Doubleword and Quadword Instructions
AVX512VL	AVX-512 Vector Length
ABM	Advanced Bit Manipulation
BMI1	Bit Manipulation Instruction Set 1
BMI2	Bit Manipulation Instruction Set 2
FMA3	3-Operand Fused-Multiply-Add
AES	AES Encryption Instructions
RdRand	Hardware RNG
ADX	Multi-Precision Add-Carry
CLMUL	Carry-less Multiplication Extension
F16C	16-bit Floating Point Conversion

x86-16	16-bit x86
x86-32	32-bit x86
x86-64	64-bit x86
Real	Real Mode
Protected	Protected Mode
SMM	System Management Mode
FPU	Integrated x87 FPU
NX	No-eXecute
HT	Hyper-Threading
TBT 2.0	Turbo Boost Technology 2.0
TBMT 3.0	Turbo Boost Max Technology 3.0
EIST	Enhanced SpeedStep Technology
VT-x	VT-x (Virtualization)
VT-d	VT-d (I/O MMU virtualization)
EPT	Extended Page Tables (SLAT)
TSX	Transactional Synchronization Extensions

Frequencies[edit]

See also: Intel's CPU Frequency Behavior

[Modify Frequency Info]

Mode	Base	Turbo Frequency/Active Cores
Mode	Base	1	2	3	4	5	6	7	8
Normal	3,600 MHz	4,300 MHz	4,300 MHz	4,100 MHz	4,100 MHz	4,000 MHz	4,000 MHz	4,000 MHz	4,000 MHz
AVX2	3,900 MHz

@@ Line 212: / Line 212: @@
 |freq_7=4,000 MHz
 |freq_8=4,000 MHz
+|freq_avx2_base=3,900 MHz
 }}
-== Overclocking ==
-The 7820x CPU overclocks to 4.6ghz on all cores relatively easily and 4.8ghz on all cores is also pretty common overclock. 4.9 and 5.0ghz can be tricky but are not uncommon and only obtainable if sufficient cooling is achieved. Generally, 4.5Ghz is a common overclock on quality air coolers and beyond that water-cooling is needed for sustained higher overclocks.
-Stock out of the box using Intel® Turbo Boost Max Technology 3.0 Frequency the CPU will overclock 2 cores to 4.5ghz.
-The quad memory controller of the Skylake-X CPUs have advanced overclocking ability such as in the case of Corsair Dominator Platinum 3600mhz memory will easily overclock to 3,800mhz - 4,000mhz. At 3,800mhz total memory bandwidth is around 101GB/s Read and 107GB/s Write with Copy at 97.2GB/s.

Has subobject "Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.	Core i7-7820X - Intel#pcie +
base frequency	3,600 MHz (3.6 GHz, 3,600,000 kHz) +
bus links	4 +
bus rate	8,000 MT/s (8 GT/s, 8,000,000 kT/s) +
bus type	DMI 3.0 +
chipset	Lewisburg +
clock multiplier	36 +
core count	8 +
core family	6 +
core model	85 +
core name	Skylake X +
core stepping	U0 +
designer	Intel +
family	Core i7 +
first announced	May 30, 2017 +
first launched	June 26, 2017 +
full page name	intel/core i7/i7-7820x +
has advanced vector extensions	true +
has advanced vector extensions 2	true +
has advanced vector extensions 512	true +
has ecc memory support	false +
has extended page tables support	true +
has feature	Advanced Vector Extensions +, Advanced Vector Extensions 2 +, Advanced Vector Extensions 512 +, Advanced Encryption Standard Instruction Set Extension +, Hyper-Threading Technology +, Turbo Boost Technology 2.0 +, Turbo Boost Max Technology 3.0 +, Enhanced SpeedStep Technology +, Intel VT-x +, Intel VT-d +, Extended Page Tables + and Transactional Synchronization Extensions +
has intel enhanced speedstep technology	true +
has intel turbo boost max technology 3 0	true +
has intel turbo boost technology 2 0	true +
has intel vt-d technology	true +
has intel vt-x technology	true +
has locked clock multiplier	false +
has second level address translation support	true +
has simultaneous multithreading	true +
has transactional synchronization extensions	true +
has x86 advanced encryption standard instruction set extension	true +
instance of	microprocessor +
intel turbo boost max technology 3 0 frequency	4,500 MHz (4.5 GHz, 4,500,000 kHz) +
isa	x86-64 +
isa family	x86 +
l1$ size	512 KiB (524,288 B, 0.5 MiB) +
l1d$ description	8-way set associative +
l1d$ size	256 KiB (262,144 B, 0.25 MiB) +
l1i$ description	8-way set associative +
l1i$ size	256 KiB (262,144 B, 0.25 MiB) +
l2$ description	16-way set associative +
l2$ size	8 MiB (8,192 KiB, 8,388,608 B, 0.00781 GiB) +
l3$ description	11-way set associative +
l3$ size	11 MiB (11,264 KiB, 11,534,336 B, 0.0107 GiB) +
ldate	June 26, 2017 +
main image	+
manufacturer	Intel +
market segment	Desktop +
max cpu count	1 +
max junction temperature	372.15 K (99 °C, 210.2 °F, 669.87 °R) +
max memory	131,072 MiB (134,217,728 KiB, 137,438,953,472 B, 128 GiB, 0.125 TiB) +
max memory bandwidth	79.47 GiB/s (81,377.28 MiB/s, 85.33 GB/s, 85,330.263 MB/s, 0.0776 TiB/s, 0.0853 TB/s) +
max memory channels	4 +
max storage temperature	398.15 K (125 °C, 257 °F, 716.67 °R) +
microarchitecture	Skylake (server) +
min junction temperature	273.15 K (0 °C, 32 °F, 491.67 °R) +
min storage temperature	248.15 K (-25 °C, -13 °F, 446.67 °R) +
model number	i7-7820X +
name	Core i7-7820X +
number of avx-512 execution units	2 +
package	FCLGA-2066 +
part number	BX80673I77820X +, BXC80673I77820X + and CD8067303611000 +
platform	Skylake +
process	14 nm (0.014 μm, 1.4e-5 mm) +
release price	$ 599.00 (€ 539.10, £ 485.19, ¥ 61,894.67) +
s-spec	SR3L5 +
series	i7-7000 +
smp max ways	1 +
socket	Socket R4 +
supported memory type	DDR4-2666 +
tdp	140 W (140,000 mW, 0.188 hp, 0.14 kW) +
technology	CMOS +
thread count	16 +
turbo frequency (1 core)	4,300 MHz (4.3 GHz, 4,300,000 kHz) +
turbo frequency (2 cores)	4,300 MHz (4.3 GHz, 4,300,000 kHz) +
word size	64 bit (8 octets, 16 nibbles) +

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