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Xeon Silver 4112 - Intel
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Xeon Silver 4112
skylake sp (basic).png
General Info
DesignerIntel
ManufacturerIntel
Model Number4112
Part NumberBX806734112,
CD8067303562100
S-SpecSR3GN
QN0E (QS)
MarketServer
IntroductionJuly 11, 2017 (announced)
July 11, 2017 (launched)
Release Price$473.00
General Specs
FamilyXeon Silver
Series4000
LockedYes
Frequency2,600 MHz
Turbo Frequency3,000 MHz (1 core)
Clock multiplier26
CPUID0x50654
Microarchitecture
ISAx86-64 (x86)
MicroarchitectureSkylake (server)
PlatformPurley
ChipsetLewisburg
Core NameSkylake SP
Core Family6
Core SteppingU0
Process14 nm
TechnologyCMOS
Word Size64 bit
Cores4
Threads8
Max CPUs2 (Multiprocessor)
Max Memory768 GiB
Electrical
TDP85 W
Tcase0 °C – 76 °C
TDTS0 °C – 89 °C
Packaging
PackageFCLGA-3647 (FCLGA)
Dimension76.16 mm x 56.6 mm
Pitch0.8585 mm x 0.9906 mm
Contact Count3647
SocketLGA-3647 (Socket P-2016)

Xeon Silver 4112 is a 64-bit quad-core x86 dual-socket mid-range performance server microprocessor introduced by Intel in mid-2017. The Silver 4112, which is based on the server configuration of the Skylake microarchitecture and is manufactured on a 14 nm process, sports 1 AVX-512 FMA unit as well as two Ultra Path Interconnect links. This microprocessor, which operates at 2.6 GHz with a TDP of 85 W and a turbo boost frequency of up to 3 GHz, supports up 768 GiB of hexa-channel DDR4-2400 ECC memory.

Cache[edit]

Main article: Skylake § Cache

The Xeon Silver 4112 features a considerably larger non-default 8.25 MiB of L3, a size that would normally be found on a 6-core part.

[Edit/Modify Cache Info]

hierarchy icon.svg
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$256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
L1I$128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
4x32 KiB8-way set associative 
L1D$128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
4x32 KiB8-way set associativewrite-back

L2$4 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
  4x1 MiB16-way set associativewrite-back

L3$8.25 MiB
8,448 KiB
8,650,752 B
0.00806 GiB
  6x1.375 MiB11-way set associativewrite-back

Memory controller[edit]

[Edit/Modify Memory Info]

ram icons.svg
Integrated Memory Controller
Max TypeDDR4-2400
Supports ECCYes
Max Mem768 GiB
Controllers2
Channels6
Max Bandwidth107.3 GiB/s
Bandwidth
Single 17.88 GiB/s
Double 35.76 GiB/s
Quad 71.53 GiB/s
Hexa 107.3 GiB/s

Expansions[edit]

[Edit/Modify Expansions Info]

ide icon.svg
Expansion Options
PCIe
Revision3.0
Max Lanes48
Configsx16, x8, x4

Features[edit]

[Edit/Modify Supported Features]

Cog-icon-grey.svg
Supported x86 Extensions & Processor Features
MMXMMX Extension
EMMXExtended MMX Extension
SSEStreaming SIMD Extensions
SSE2Streaming SIMD Extensions 2
SSE3Streaming SIMD Extensions 3
SSSE3Supplemental SSE3
SSE4.1Streaming SIMD Extensions 4.1
SSE4.2Streaming SIMD Extensions 4.2
AVXAdvanced Vector Extensions
AVX2Advanced Vector Extensions 2
AVX-512Advanced Vector 512-bit
AVX512FAVX-512 Foundation
AVX512CDAVX-512 Conflict Detection
AVX512BWAVX-512 Byte and Word
AVX512DQAVX-512 Double and Quad
AVX512VLAVX-512 Vector Length
ABMAdvanced Bit Manipulation
BMI1Bit Manipulation Instruction Set 1
BMI2Bit Manipulation Instruction Set 2
FMA33-Operand Fused-Multiply-Add
AESAES Encryption Instructions
RdRandHardware RNG
ADXMulti-Precision Add-Carry
CLMULCarry-less Multiplication Extension
F16C16-bit Floating Point Conversion
x86-1616-bit x86
x86-3232-bit x86
x86-6464-bit x86
RealReal Mode
ProtectedProtected Mode
SMMSystem Management Mode
FPUIntegrated x87 FPU
NXNo-eXecute
HTHyper-Threading
TBT 2.0Turbo Boost Technology 2.0
EISTEnhanced SpeedStep Technology
SSTSpeed Shift Technology
TXTTrusted Execution Technology (SMX)
vProIntel vPro
VT-xVT-x (Virtualization)
EPTExtended Page Tables (SLAT)
TSXTransactional Synchronization Extensions
VMDVolume Management Device
NMNode Manager
KPTKey Protection Technology
PTTPlatform Trust Technology
MBE CtrlMode-Based Execute Control

Frequencies[edit]

See also: Intel's CPU Frequency Behavior

[Modify Frequency Info]

ModeBaseTurbo Frequency/Active Cores
1234
Normal2,600 MHz3,000 MHz3,000 MHz2,900 MHz2,900 MHz
AVX22,200 MHz2,900 MHz2,900 MHz2,600 MHz2,600 MHz
AVX5121,100 MHz1,800 MHz1,800 MHz1,400 MHz1,400 MHz

Benchmarks[edit]

[Edit Benchmarks]

Test: SPEC CPU2017
Tested: 2017-10-17 13:59:50-0400
Chips: 2, Cores: 8, Threads: 8
benchmarks.svg
Vendor: HPE
System: ProLiant DL380 Gen10 (2.60 GHz, Intel Xeon Silver 4112)
SPECspeed2017_fp_base: 41.4
Test: SPEC CPU2017
Tested: 2017-10-23 20:49:08-0400
Chips: 2, Cores: 8, Copies: 16
benchmarks.svg
Vendor: HPE
System: ProLiant DL360 Gen10 (2.60 GHz, Intel Xeon Silver 4112)
SPECrate2017_fp_base: 51.8
Test: SPEC CPU2017
Tested: 2017-10-18 17:58:43-0400
Chips: 2, Cores: 8, Copies: 16
benchmarks.svg
Vendor: HPE
System: ProLiant DL380 Gen10 (2.60 GHz, Intel Xeon Silver 4112)
SPECrate2017_int_base: 44
Test: SPEC CPU2017
Tested: 2017-10-24 15:29:40-0400
Chips: 2, Cores: 8, Threads: 8
benchmarks.svg
Vendor: HPE
System: ProLiant DL360 Gen10 (2.60 GHz, Intel Xeon Silver 4112)
SPECspeed2017_fp_base: 41.4
Test: SPEC CPU2017
Tested: 2017-10-17 10:35:09-0400
Chips: 2, Cores: 8, Threads: 8
benchmarks.svg
Vendor: HPE
System: ProLiant DL380 Gen10 (2.60 GHz, Intel Xeon Silver 4112)
SPECspeed2017_int_base: 6.61
Test: SPEC CPU2017
Tested: 2017-10-23 16:05:38-0400
Chips: 2, Cores: 8, Copies: 16
benchmarks.svg
Vendor: HPE
System: ProLiant DL360 Gen10 (2.60 GHz, Intel Xeon Silver 4112)
SPECrate2017_int_base: 44.1
Test: SPEC CPU2017
Tested: 2017-10-18 22:42:26-0400
Chips: 2, Cores: 8, Copies: 16
benchmarks.svg
Vendor: HPE
System: ProLiant DL380 Gen10 (2.60 GHz, Intel Xeon Silver 4112)
SPECrate2017_fp_base: 51.4
Test: SPEC CPU2017
Tested: 2017-10-24 12:05:11-0400
Chips: 2, Cores: 8, Threads: 8
benchmarks.svg
Vendor: HPE
System: ProLiant DL360 Gen10 (2.60 GHz, Intel Xeon Silver 4112)
SPECspeed2017_int_base: 6.63
Has subobject
"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
Xeon Silver 4112 - Intel#package +, Xeon Silver 4112 - Intel +, Xeon Silver 4112 - Intel +, Xeon Silver 4112 - Intel +, Xeon Silver 4112 - Intel +, Xeon Silver 4112 - Intel +, Xeon Silver 4112 - Intel +, Xeon Silver 4112 - Intel + and Xeon Silver 4112 - Intel +
base frequency2,600 MHz (2.6 GHz, 2,600,000 kHz) +
chipsetLewisburg +
clock multiplier26 +
core count4 +
core family6 +
core nameSkylake SP +
core steppingU0 +
cpuid0x50654 +
designerIntel +
familyXeon Silver +
first announcedJuly 11, 2017 +
first launchedJuly 11, 2017 +
full page nameintel/xeon silver/4112 +
has advanced vector extensionstrue +
has advanced vector extensions 2true +
has advanced vector extensions 512true +
has ecc memory supporttrue +
has extended page tables supporttrue +
has featureAdvanced Vector Extensions +, Advanced Vector Extensions 2 +, Advanced Encryption Standard Instruction Set Extension +, Hyper-Threading Technology +, Turbo Boost Technology 2.0 +, Enhanced SpeedStep Technology +, Speed Shift Technology +, Trusted Execution Technology +, Intel vPro Technology +, Intel VT-x +, Transactional Synchronization Extensions +, Extended Page Tables + and Advanced Vector Extensions 512 +
has intel enhanced speedstep technologytrue +
has intel speed shift technologytrue +
has intel trusted execution technologytrue +
has intel turbo boost technology 2 0true +
has intel vpro technologytrue +
has intel vt-x technologytrue +
has locked clock multipliertrue +
has second level address translation supporttrue +
has simultaneous multithreadingtrue +
has transactional synchronization extensionstrue +
has x86 advanced encryption standard instruction set extensiontrue +
instance ofmicroprocessor +
isax86-64 +
isa familyx86 +
l1$ size0.25 MiB (256 KiB, 262,144 B, 2.441406e-4 GiB) +
l1d$ description8-way set associative +
l1d$ size0.125 MiB (128 KiB, 131,072 B, 1.220703e-4 GiB) +
l1i$ description8-way set associative +
l1i$ size0.125 MiB (128 KiB, 131,072 B, 1.220703e-4 GiB) +
l2$ description16-way set associative +
l2$ size4 MiB (4,096 KiB, 4,194,304 B, 0.00391 GiB) +
l3$ description11-way set associative +
l3$ size8.25 MiB (8,448 KiB, 8,650,752 B, 0.00806 GiB) +
ldateJuly 11, 2017 +
main imageFile:skylake sp (basic).png +
manufacturerIntel +
market segmentServer +
max case temperature349.15 K (76 °C, 168.8 °F, 628.47 °R) +
max cpu count2 +
max dts temperature89 °C +
max memory786,432 MiB (805,306,368 KiB, 824,633,720,832 B, 768 GiB, 0.75 TiB) +
max memory channels6 +
max pcie lanes48 +
microarchitectureSkylake (server) +
min case temperature273.15 K (0 °C, 32 °F, 491.67 °R) +
min dts temperature0 °C +
model number4112 +
nameXeon Silver 4112 +
packageFCLGA-3647 +
part numberBX806734112 + and CD8067303562100 +
platformPurley +
process14 nm (0.014 μm, 1.4e-5 mm) +
release price$ 473.00 (€ 425.70, £ 383.13, ¥ 48,875.09) +
s-specSR3GN +
s-spec (qs)QN0E +
series4000 +
socketSocket P-2016 +
supported memory typeDDR4-2400 +
tdp85 W (85,000 mW, 0.114 hp, 0.085 kW) +
technologyCMOS +
thread count8 +
turbo frequency (1 core)3,000 MHz (3 GHz, 3,000,000 kHz) +
word size64 bit (8 octets, 16 nibbles) +