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Xeon E5-2643 v4 - Intel
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Xeon E5-2643 v4
General Info
DesignerIntel
ManufacturerIntel
Model NumberE5-2643 v4
Part NumberCM8066002041500
S-SpecSR2P4
QKEZ (QS)
MarketServer
IntroductionJune 20, 2016 (announced)
June 20, 2016 (launched)
Release Price$1552.00
General Specs
FamilyXeon E5
SeriesE5-2000
LockedYes
Frequency3,400 MHz
Turbo FrequencyYes
Turbo Frequency3,700 MHz (1 core),
3,700 MHz (2 cores),
3,600 MHz (3 cores),
3,600 MHz (4 cores),
3,600 MHz (5 cores),
3,600 MHz (6 cores)
Bus typeQPI
Bus speed4,800 MHz
Bus rate2 × 9.6 GT/s
Clock multiplier34
CPUID406F1
Microarchitecture
MicroarchitectureBroadwell
PlatformGrantley EP 2S
ChipsetC610 Series
Core NameBroadwell EP
Core Family6
Core Model4F
Core SteppingR0
Process14 nm
Transistors3,200,000,000
TechnologyCMOS
Die246.24 mm²
Word Size64 bit
Cores6
Threads12
Max CPUs2 (Multiprocessor)
Max Memory1,536 GiB
Electrical
Vcore1.82 V
VI/O1.2 V ± 3%
TDP135 W
Tcase0 °C – 75 °C
Tstorage-25 °C – 125 °C

The Xeon E5-2643 v4 is a 64-bit hexa-core x86 microprocessor introduced by Intel in 2016. This server MPU is designed for frequency-optimized 2S environments (2U square form factor). Operating at 3.4 GHz with a turbo boost frequency of 3.7 GHz for a single active core, this MPU has a TDP of 135 W and is manufactured on a 14 nm process (based on Broadwell).

Cache[edit]

Main article: Broadwell § Cache
Cache Info [Edit Values]
L1I$ 192 KiB
0.188 MiB
196,608 B
1.831055e-4 GiB
6x32 KiB 8-way set associative (per core, write-back)
L1D$ 192 KiB
0.188 MiB
196,608 B
1.831055e-4 GiB
6x32 KiB 8-way set associative (per core, write-back)
L2$ 1.5 MiB
1,536 KiB
1,572,864 B
0.00146 GiB
6x256 KiB 8-way set associative (per core, write-back)
L3$ 20 MiB
20,480 KiB
20,971,520 B
0.0195 GiB
6x3.325 MiB 20-way set associative (shared, per core, write-back)

Graphics[edit]

This microprocessor has no integrated graphics processing unit.

Memory controller[edit]

Integrated Memory Controller
Type DDR4-2400
Controllers 1
Channels 4
ECC Support Yes
Max bandwidth 71.53 GiB/s
Bandwidth (single) 17.88 GiB/s
Bandwidth (dual) 35.76 GiB/s
Max memory 1,536 GiB
Physical Address Extensions 46 bit

Expansions[edit]

[Edit/Modify Expansions Info]

ide icon.svg
Expansion Options
PCIe
Revision3.0
Max Lanes40
Configsx4, x16

Features[edit]

base frequency3,400 MHz (3.4 GHz, 3,400,000 kHz) +
bus links2 +
bus rate9,600 MT/s (9.6 GT/s, 9,600,000 kT/s) +
bus speed4,800 MHz (4.8 GHz, 4,800,000 kHz) +
bus typeQPI +
chipsetC610 Series +
clock multiplier34 +
core count6 +
core family6 +
core model4F +
core nameBroadwell EP +
core steppingR0 +
core voltage1.82 V (18.2 dV, 182 cV, 1,820 mV) +
cpuid406F1 +
designerIntel +
die area246.24 mm² (0.382 in², 2.462 cm², 246,240,000 µm²) +
familyXeon E5 +
first announcedJune 20, 2016 +
first launchedJune 20, 2016 +
full page nameintel/xeon e5/e5-2643 v4 +
has advanced vector extensionstrue +
has advanced vector extensions 2true +
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 +, Trusted Execution Technology +, Intel vPro Technology +, Extended Page Tables + and Transactional Synchronization Extensions +
has intel enhanced speedstep technologytrue +
has intel trusted execution technologytrue +
has intel turbo boost technology 2 0true +
has intel vpro 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 +
io voltage1.2 V (12 dV, 120 cV, 1,200 mV) +
io voltage tolerance3% +
l1d$ description8-way set associative +
l1d$ size0.188 MiB (192 KiB, 196,608 B, 1.831055e-4 GiB) +
l1i$ description8-way set associative +
l1i$ size0.188 MiB (192 KiB, 196,608 B, 1.831055e-4 GiB) +
l2$ description8-way set associative +
l2$ size1.5 MiB (1,536 KiB, 1,572,864 B, 0.00146 GiB) +
l3$ description20-way set associative +
l3$ size20 MiB (20,480 KiB, 20,971,520 B, 0.0195 GiB) +
ldateJune 20, 2016 +
manufacturerIntel +
market segmentServer +
max case temperature348.15 K (75 °C, 167 °F, 626.67 °R) +
max cpu count2 +
max memory1,572,864 MiB (1,610,612,736 KiB, 1,649,267,441,664 B, 1,536 GiB, 1.5 TiB) +
max pcie lanes40 +
max storage temperature398.15 K (125 °C, 257 °F, 716.67 °R) +
microarchitectureBroadwell +
min case temperature273.15 K (0 °C, 32 °F, 491.67 °R) +
min storage temperature248.15 K (-25 °C, -13 °F, 446.67 °R) +
model numberE5-2643 v4 +
nameXeon E5-2643 v4 +
part numberCM8066002041500 +
platformGrantley EP 2S +
process14 nm (0.014 μm, 1.4e-5 mm) +
release price$ 1,552.00 (€ 1,396.80, £ 1,257.12, ¥ 160,368.16) +
s-specSR2P4 +
s-spec (qs)QKEZ +
seriesE5-2000 +
tdp135 W (135,000 mW, 0.181 hp, 0.135 kW) +
technologyCMOS +
thread count12 +
transistor count3,200,000,000 +
turbo frequency (1 core)3,700 MHz (3.7 GHz, 3,700,000 kHz) +
turbo frequency (2 cores)3,700 MHz (3.7 GHz, 3,700,000 kHz) +
turbo frequency (3 cores)3,600 MHz (3.6 GHz, 3,600,000 kHz) +
turbo frequency (4 cores)3,600 MHz (3.6 GHz, 3,600,000 kHz) +
turbo frequency (5 cores)3,600 MHz (3.6 GHz, 3,600,000 kHz) +
turbo frequency (6 cores)3,600 MHz (3.6 GHz, 3,600,000 kHz) +
word size64 bit (8 octets, 16 nibbles) +