Editing qualcomm/snapdragon 800/845

{{qualcomm title|Snapdragon 845}}
{{chip
|name=Snapdragon 845
|image=sdm845 (front).png
|back image=sdm845 (back).png
|caption=Chip package, front
|designer=Qualcomm
|designer 2=ARM Holdings
|manufacturer=Samsung
|model number=SDM845
|part number=SDM845
|first announced=December 6, 2017
|first launched=February, 2018
|family=Snapdragon 800
|series=800
|frequency=2,800 MHz
|frequency 2=1,700 MHz
|isa=ARMv8.2
|isa family=ARM
|microarch=Cortex-A75
|microarch 2=Cortex-A55
|core name=Kryo 385 Gold
|core name 2=Kryo 385 Silver
|process=10 nm
|transistors=5,300,000,000
|technology=CMOS
|die area=95 mm²
|word size=64 bit
|core count=8
|thread count=8
|max cpus=1
|max memory=10 GiB
|predecessor=Snapdragon 835
|predecessor link=qualcomm/snapdragon_800/835
|successor=Snapdragon 855
|successor link=qualcomm/snapdragon_800/855
}}
[[File:sdm845 block diagram.jpg|thumb|right|Block diagram]]
'''Snapdragon 845''' is a high-performance {{arch|64}} [[ARM]] [[LTE]] [[system on a chip]] designed by [[Qualcomm]] and introduced in late [[2017]]. Fabricated on Samsung's [[10nm process|10nm 10LPP]], the 845 features four [[Kryo 385 Silver]] high-efficiency cores operating at 1.7 GHz along with four high-performance [[Kryo 385 Gold]] cores operating at 2.8 GHz. The Snapdragon 845 integrates the {{qualcomm|Adreno 630}} [[GPU]] operation at 710 MHz and features an X20 LTE modem supporting Cat 13 uplink and Cat 18 downlink. This chip supports up to 8 GiB of quad-channel LPDDR4X-3733 memory.

== Cache ==
{{main|arm_holdings/microarchitectures/cortex-a75#Memory_Hierarchy|arm_holdings/microarchitectures/cortex-a55#Memory_Hierarchy|l1=Cortex-A75 § Cache|l2=Cortex-A55 § Cache}}

Quad-core cluster {{armh|Cortex-A75|l=arch}}:
{{cache size
|l1 cache=512 KiB
|l1i cache=256 KiB
|l1i break=4x64 KiB
|l1i desc=4-way set associative
|l1d cache=256 KiB
|l1d break=4x64 KiB
|l1d desc=4-way set associative
|l2 cache=1 MiB
|l2 break=4x256 KiB
|l2 desc=8-way set associative
}}

Quad-core cluster {{armh|Cortex-A55|l=arch}}:
{{cache size
|l1 cache=512 KiB
|l1i cache=256 KiB
|l1i break=4x64 KiB
|l1i desc=2-way set associative
|l1d cache=256 KiB
|l1d break=4x64 KiB
|l1d desc=4-way set associative
|l2 cache=512 KiB
|l2 break=4x128 KiB
|l2 desc=8-way set associative
}}

* 2 MiB L3

== Memory controller ==
{{memory controller
|type=LPDDR4X-3833
|ecc=No
|max mem=8 GiB
|controllers=1
|channels=4
|width=16 bit
|max bandwidth=29.87 GiB/s
|frequency=1866 MHz
|bandwidth schan=7.47 GiB/s
|bandwidth dchan=14.93 GiB/s
|bandwidth qchan=29.87 GiB/s
}}

== DSP ==
{{#set: dsp|Hexagon 685 DSP}}
This chip features [[Qualcomm]]'s {{qualcomm|Hexagon}} {{qualcomm|Hexagon 685|685}} DSP.

== Graphics ==
{{integrated graphics
| gpu                 = Adreno 630 GPU
| designer            = Qualcomm
| execution units     = 2 (256x2 ALU)
| max displays        = 2
| max memory          = 
| frequency           = 710 MHz
| max frequency       = 

| output crt          = 
| output sdvo         = 
| output dsi          = 
| output edp          = 
| output dp           = 
| output hdmi         = 
| output vga          = 
| output dvi          = 

| directx ver        = 12
| opengl ver         = 
| opengl es ver      = 3.2
| opencl ver         = 2.0
| vulkan ver         = 1.0
| hdmi ver           = 
| dp ver             = 
| edp ver            = 
| max res hdmi       = 
| max res hdmi freq  = 
| max res dp         = 
| max res dp freq    = 
| max res edp        = 
| max res edp freq   = 
| max res vga        = 
| max res vga freq   = 
}}

* UHD video playback/encoding @ 4K (3840x2160) 60fps, 10bit HDR, Rec 2020 color gamut
* Slow motion HEVC video encoding of either HD (720p) video up to 480fps or FHD (1080p) up to 240fps
* H.264 (AVC), H.265 (HEVC), VP9, DisplayPort over USB Type-C support

== Audio ==
* Qualcomm Aqstic audio codec and speaker amplifier
* Qualcomm aptX audio playback with support for aptX Classic and HD
* Native DSD support, PCM up to 384kHz/32bit

== Camera ==
* Image Signal Processor
** Qualcomm Spectra 280
** New architecture for 14-bit image signal processing, with support for up to:
*** Single HFR 16 MPix camera at 60fps ZSL
*** Dual 16 MPix cameras at 30fps ZSL
*** Single 32 MPix camera at 30fps ZSL
** Can connect up to 7 different cameras (many configurations possible)
*** Multi-frame Noise Reduction (MFNR) with accelerated image stabilization
*** Hybrid Autofocus with support for dual phase detection (2PD) sensors
*** Ultra HD Premium video capture @ 4K (3840x2160) 60fps, 10bit HDR, Rec 2020 color gamut
*** Higher quality video capture with Motion Compensated Temporal Filtering (MCTF)
*** 3D structured light active depth sensing, with accelerated face detection/recognition

== Connectivity ==
* X20 LTE Modem
** Downlink:
*** LTE Cat 18 up to 1.2 Gbps, 5x20 MHz carrier aggregation, up to 256-QAM, up to 4x4 MIMO on three carriers
** Uplink:
*** LTE Cat 13 up to 150 Mbps, Upload+ (2x20 MHz carrier aggregation, up to 64-QAM)
** License Assisted Access (LAA)
** Citizens Broadband Radio Service (CBRS) shared radio spectrum
** Dual SIM Dual VoLTE (DSDV)
** All Mode with support for all major cellular modes plus LAA.
*** VoLTE with SRVCC to 3G and 2G, HD and Ultra HD Voice (EVS), CSFB to 3G and 2G
*** Voice over Wi-Fi (VoWiFi) with LTE call continuity

* Wi-Fi
** 802.11ad Multi-gigabit with 60 GHz diversity module
** 802.11ac 2x2 with MU-MIMO
** Tri-band Wi-Fi: 2.4 GHz and 5 GHz with Dual-Band Simultaneous (DBS) + 60 GHz
** 11k/r/v: Enhanced mobility, fast acquisition and congestion mitigation for Carrier Wi-Fi

* Bluetooth
** Bluetooth 5.0 
*** Proprietary enhancements
**** Ultra-low power wireless earbuds
**** Direct audio broadcast to multiple devices 

== Location ==
* Systems: GPS, Glonass, BeiDou, Galileo, QZSS, and SBAS
* Low Power Geofencing and Tracking, Sensor-assisted Navigation

== Utilizing devices ==

* [[used by::Asus Zenfone 5Z]]
* [[used by::comma three]]
* [[used by::Google Pixel 3]]
* [[used by::Google Pixel 3 XL]]
* [[used by::HTC U12+]]
* [[used by::LG G7 ThinQ]]
* [[used by::LG V35 ThinQ]]
* [[used by::LG V40 ThinQ]]
* [[used by::Nokia 9 PureView]]
* [[used by::OnePlus 6]]
* [[used by::OnePlus 6T]]
* [[used by::Oppo Find X]]
* [[used by::Razer Phone 2]]
* [[used by::Samsung Galaxy Note9]]
* [[used by::Samsung Galaxy S9]]
* [[used by::Samsung Galaxy S9+]]
* [[used by::Shift 6mq]]
* [[used by::Sony Xperia XZ2]]
* [[used by::Sony Xperia XZ2 compact]]
* [[used by::Sony Xperia XZ2 Premium]] 
* [[used by::Sony Xperia XZ3]]
* [[used by::Xiaomi Mi Mix 3]]
* [[used by::Xiaomi Mi Mix 2s]]
* [[used by::Xiaomi Mi 8]]
* [[used by::Xiaomi Pocophone F1]]
* [[used by::ZTE Axon 9 Pro]]
{{expand list}}

== Die ==
* Samsung [[10LPP|10nm 10LPP]]
* 95 mm²


:''Die photo by [https://www.techinsights.com/blog/apple-iphone-11-pro-max-teardown TechInsights]''
:[[File:845 die shot.png|500px]]

== Documents ==
* [[:File:sdm845pb.pdf|SDM845 Product Brief]]
* [[:File:snapdragon-845-connectivity-pillar-presentation-by-peter-carson.pdf|SDM 845 connectivity presentation]]
* [[:File:snapdragon-845-performance-pillar-presentation-by-travis-lanier.pdf|Architecture deep dive]]
* [[:File:snapdragon-845-security-pillar-presentation-by-sy-choudhury.pdf|Mobile security experiences with Snapdragon 845]]
back image	+
base frequency	2,800 MHz (2.8 GHz, 2,800,000 kHz) + and 1,700 MHz (1.7 GHz, 1,700,000 kHz) +
core count	8 +
core name	Kryo 385 Gold + and Kryo 385 Silver +
designer	Qualcomm + and ARM Holdings +
die area	95 mm² (0.147 in², 0.95 cm², 95,000,000 µm²) +
dsp	Hexagon 685 DSP +
family	Snapdragon 800 +
first announced	December 6, 2017 +
first launched	February 2018 +
full page name	qualcomm/snapdragon 800/845 +
has ecc memory support	false +
instance of	microprocessor +
integrated gpu	Adreno 630 GPU +
integrated gpu base frequency	710 MHz (0.71 GHz, 710,000 KHz) +
integrated gpu designer	Qualcomm +
isa	ARMv8.2 +
isa family	ARM +
l1$ size	512 KiB (524,288 B, 0.5 MiB) +
l1d$ description	4-way set associative +
l1d$ size	256 KiB (262,144 B, 0.25 MiB) +
l1i$ description	4-way set associative + and 2-way set associative +
l1i$ size	256 KiB (262,144 B, 0.25 MiB) +
l2$ description	8-way set associative +
l2$ size	1 MiB (1,024 KiB, 1,048,576 B, 9.765625e-4 GiB) + and 0.5 MiB (512 KiB, 524,288 B, 4.882812e-4 GiB) +
ldate	February 2018 +
main image	+
main image caption	Chip package, front +
manufacturer	Samsung +
max cpu count	1 +
max memory	10,240 MiB (10,485,760 KiB, 10,737,418,240 B, 10 GiB, 0.00977 TiB) +
max memory bandwidth	29.87 GiB/s (30,586.88 MiB/s, 32.073 GB/s, 32,072.668 MB/s, 0.0292 TiB/s, 0.0321 TB/s) +
max memory channels	4 +
microarchitecture	Cortex-A75 + and Cortex-A55 +
model number	SDM845 +
name	Snapdragon 845 +
part number	SDM845 +
process	10 nm (0.01 μm, 1.0e-5 mm) +
series	800 +
smp max ways	1 +
supported memory type	LPDDR4X-3833 +
technology	CMOS +
thread count	8 +
transistor count	5,300,000,000 +
used by	Asus Zenfone 5Z +, Google Pixel 3 +, Google Pixel 3 XL +, HTC U12+ +, LG G7 ThinQ +, LG V35 ThinQ +, LG V40 ThinQ +, Nokia 9 PureView +, OnePlus 6 +, OnePlus 6T +, Oppo Find X +, Razer Phone 2 +, Samsung Galaxy Note9 +, Samsung Galaxy S9 +, Samsung Galaxy S9+ +, Shift 6mq +, Sony Xperia XZ2 +, Sony Xperia XZ2 compact +, Sony Xperia XZ2 Premium +, Sony Xperia XZ3 +, Xiaomi Mi Mix 3 +, Xiaomi Mi Mix 2s +, Xiaomi Mi 8 +, Xiaomi Pocophone F1 +, ZTE Axon 9 Pro + and comma three +
word size	64 bit (8 octets, 16 nibbles) +