Editing intel/core i9/i9-7940x

{{intel title|Core i9-7940X}}
{{chip
|name=Core i9-7940X
|image=skylake x (front).png
|designer=Intel
|manufacturer=Intel
|model number=i9-7940X
|part number=CD8067303734701
|s-spec=SR3RQ
|market=Desktop
|first announced=May 30, 2017
|first launched=September 25, 2017
|release price=$1,399
|family=Core i9
|series=i9-7900
|locked=No
|frequency=3,100 MHz
|turbo frequency1=4,300 MHz
|turbo frequency2=4,300 MHz
|bus type=DMI 3.0
|bus links=4
|bus rate=8 GT/s
|isa=x86-64
|isa family=x86
|microarch=Skylake (server)
|platform=Skylake
|chipset=Lewisburg
|core name=Skylake X
|core family=6
|core model=85
|core stepping=M0
|process=14 nm
|technology=CMOS
|word size=64 bit
|core count=14
|thread count=28
|max cpus=1
|max memory=128 GiB
|tdp=165 W
|tjunc min=0 °C
|tjunc max=102 °C
|tstorage min=-25 °C
|tstorage max=125 °C
|package name 1=intel,fclga_2066
}}
'''Core i9-7940X''' is a {{arch|64}} [[tetradeca-core]] high-performance [[x86]] desktop microprocessor introduced by [[Intel]] in mid-[[2017]].  This chip, which is based on the {{intel|Skylake|l=arch}} microarchitecture, is fabricated on Intel's enhanced [[14 nm process|14nm+ process]]. The i9-7940X operates at 3.1 GHz with a TDP of 165 W and a {{intel|Turbo Boost}} frequency of 4.3 GHz. The processor supports up to 128 GiB of quad-channel DDR4-2666 memory.

In addition to its {{intel|Turbo Boost}} frequency, the i9-7940X has a {{intel|Turbo Max}} frequency of {{set tbmt|4.4 GHz}}.

== Cache ==
{{main|intel/microarchitectures/skylake_(server)#Memory_Hierarchy|l1=Skylake § Cache}}
{{cache size
|l1 cache=896 KiB
|l1i cache=448 KiB
|l1i break=14x32 KiB
|l1i desc=8-way set associative
|l1d cache=448 KiB
|l1d break=14x32 KiB
|l1d desc=8-way set associative
|l1d policy=write-back
|l2 cache=14 MiB
|l2 break=14x1 MiB
|l2 desc=16-way set associative
|l2 policy=write-back
|l3 cache=19.25 MiB
|l3 break=14x1.375 MiB
|l3 desc=11-way set associative
|l3 policy=write-back
}}

== Memory controller ==
{{memory controller
|type=DDR4-2666
|ecc=No
|max mem=
|channels=4
|max bandwidth=79.47 GiB/s
|bandwidth schan=19.89 GiB/s
|bandwidth dchan=39.72 GiB/s
|bandwidth qchan=79.47 GiB/s
}}

== Expansions ==
{{expansions main
|
{{expansions entry
|type=PCIe
|pcie revision=3.0
|pcie lanes=44
|pcie config=x16
|pcie config 2=x8
|pcie config 3=x4
}}
}}

== Graphics ==
This processor has no integrated graphics.

== Features == 
{{x86 features
|real=Yes
|protected=Yes
|smm=Yes
|fpu=Yes
|x8616=Yes
|x8632=Yes
|x8664=Yes
|nx=Yes
|mmx=Yes
|emmx=Yes
|sse=Yes
|sse2=Yes
|sse3=Yes
|ssse3=Yes
|sse41=Yes
|sse42=Yes
|sse4a=No
|avx=Yes
|avx2=Yes
|avx512f=Yes
|avx512cd=Yes
|avx512er=No
|avx512pf=No
|avx512bw=Yes
|avx512dq=Yes
|avx512vl=Yes
|avx512ifma=No
|avx512vbmi=No
|avx5124fmaps=No
|avx5124vnniw=No
|avx512vpopcntdq=No
|avx512units=2
|abm=Yes
|tbm=No
|bmi1=Yes
|bmi2=Yes
|fma3=Yes
|fma4=No
|aes=Yes
|rdrand=Yes
|sha=No
|xop=No
|adx=Yes
|clmul=Yes
|f16c=Yes
|tbt1=No
|tbt2=Yes
|tbmt3=Yes
|bpt=No
|eist=Yes
|sst=No
|flex=No
|fastmem=No
|ivmd=No
|intelnodecontroller=No
|intelnode=No
|kpt=No
|ptt=No
|intelrunsure=No
|mbe=No
|isrt=No
|sba=No
|mwt=No
|sipp=No
|att=No
|ipt=No
|tsx=Yes
|txt=No
|ht=Yes
|vpro=No
|vtx=Yes
|vtd=Yes
|ept=Yes
|mpx=No
|sgx=No
|securekey=No
|osguard=No
|intqat=No
|3dnow=No
|e3dnow=No
|smartmp=No
|powernow=No
|amdvi=No
|amdv=No
|amdsme=No
|amdtsme=No
|amdsev=No
|rvi=No
|smt=No
|sensemi=No
|xfr=No
|xfr2=No
|mxfr=No
|amdpb=No
|amdpb2=No
|amdpbod=No
}}

== Frequencies ==
{{see also|intel/frequency_behavior|l1=Intel's CPU Frequency Behavior}}
{{frequency table
|freq_base=3,100 MHz
|freq_1=4,300 MHz
|freq_2=4,300 MHz
|freq_3=4,100 MHz
|freq_4=4,100 MHz
|freq_5=4,000 MHz
|freq_6=4,000 MHz
|freq_7=4,000 MHz
|freq_8=4,000 MHz
|freq_9=4,000 MHz
|freq_10=4,000 MHz
|freq_11=4,000 MHz
|freq_12=4,000 MHz
|freq_13=3,800 MHz
|freq_14=3,800 MHz
}}
Has subobject "Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.	Core i9-7940X - Intel#pcie +
base frequency	3,100 MHz (3.1 GHz, 3,100,000 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 +
core count	14 +
core family	6 +
core model	85 +
core name	Skylake X +
core stepping	M0 +
designer	Intel +
family	Core i9 +
first announced	May 30, 2017 +
first launched	September 25, 2017 +
full page name	intel/core i9/i9-7940x +
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 Encryption Standard Instruction Set Extension +, Turbo Boost Technology 2.0 +, Turbo Boost Max Technology 3.0 +, Enhanced SpeedStep Technology +, Intel VT-x +, Intel VT-d +, Transactional Synchronization Extensions +, Hyper-Threading Technology +, Extended Page Tables + and Advanced Vector Extensions 512 +
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	4,400 MHz (4.4 GHz, 4,400,000 kHz) +
isa	x86-64 +
isa family	x86 +
l1$ size	896 KiB (917,504 B, 0.875 MiB) +
l1d$ description	8-way set associative +
l1d$ size	448 KiB (458,752 B, 0.438 MiB) +
l1i$ description	8-way set associative +
l1i$ size	448 KiB (458,752 B, 0.438 MiB) +
l2$ description	16-way set associative +
l2$ size	14 MiB (14,336 KiB, 14,680,064 B, 0.0137 GiB) +
l3$ description	11-way set associative +
l3$ size	19.25 MiB (19,712 KiB, 20,185,088 B, 0.0188 GiB) +
ldate	September 25, 2017 +
main image	+
manufacturer	Intel +
market segment	Desktop +
max cpu count	1 +
max junction temperature	375.15 K (102 °C, 215.6 °F, 675.27 °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	i9-7940X +
name	Core i9-7940X +
number of avx-512 execution units	2 +
package	FCLGA-2066 +
part number	CD8067303734701 +
platform	Skylake +
process	14 nm (0.014 μm, 1.4e-5 mm) +
release price	$ 1,399.00 (€ 1,259.10, £ 1,133.19, ¥ 144,558.67) +
s-spec	SR3RQ +
series	i9-7900 +
smp max ways	1 +
socket	Socket R4 +
supported memory type	DDR4-2666 +
tdp	165 W (165,000 mW, 0.221 hp, 0.165 kW) +
technology	CMOS +
thread count	28 +
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) +