CPUBoss Review Our evaluation of E5-2643V4 vs E5-2640V4 among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Intel E5-2643V4

Reasons to consider the
Intel E5-2643V4

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Significantly higher clock speed 3.4 GHz vs 2.4 GHz More than 40% higher clock speed
Higher turbo clock speed 3.7 GHz vs 3.4 GHz Around 10% higher turbo clock speed
Significantly more l3 cache per core 3.33 MB/core vs 2.5 MB/core Around 35% more l3 cache per core
Significantly better overclocked clock speed (Air) 3.4 GHz vs 2.4 GHz More than 40% better overclocked clock speed (Air)
Better PassMark (Single core) score 2,057 vs 1,854 More than 10% better PassMark (Single core) score
Significantly better overclocked clock speed (Water) 3.4 GHz vs 2.4 GHz More than 40% better overclocked clock speed (Water)
Front view of Intel E5-2640V4

Reasons to consider the
Intel E5-2640V4

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Much lower typical power consumption 73.13W vs 109.69W Around 35% lower typical power consumption
More l3 cache 25 MB vs 20 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 10 vs 6 4 more cores; run more applications at once
More threads 20 vs 12 8 more threads
Better performance per dollar 0.44 pt/$ vs 0.25 pt/$ More than 75% better performance per dollar
Better PassMark score 15,348 vs 13,395 Around 15% better PassMark score
Better performance per watt 4.64 pt/W vs 2.88 pt/W More than 60% better performance per watt
Much lower annual home energy cost 21.68 $/year vs 32.52 $/year Around 35% lower annual home energy cost
Much lower annual commercial energy cost 78.84 $/year vs 118.26 $/year Around 35% lower annual commercial energy cost

Benchmarks Real world tests of E5-2643V4 vs E5-2640V4

PassMark Data courtesy Passmark

E5-2643V4
13,395
E5-2640V4
15,348

PassMark (Single Core)

E5-2643V4
2,057
E5-2640V4
1,854

Specifications Full list of technical specs

summary

E5-2643V4  vs
E5-2640V4 
Clock speed 3.4 GHz 2.4 GHz
Turbo clock speed 3.7 GHz 3.4 GHz
Cores Hexa core Deca core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
AES
AVX
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 135W 90W
Annual home energy cost 32.52 $/year 21.68 $/year
Annual commercial energy cost 118.26 $/year 78.84 $/year
Performance per watt 2.88 pt/W 4.64 pt/W
Typical power consumption 109.69W 73.13W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 76,800 MB/s 64,000 MB/s
Transfer rate 9,600 MT/s 8,000 MT/s
Clock speed 4,800 MHz 4,000 MHz

details

E5-2643V4  vs
E5-2640V4 
Architecture x86-64 x86-64
Threads 12 20
L3 cache 20 MB 25 MB
L3 cache per core 3.33 MB/core 2.5 MB/core
Manufacture process 14 nm 14 nm
Max CPUs 2 2
Operating temperature Unknown - 75°C Unknown - 76°C

overclocking

Overclocked clock speed 3.4 GHz 2.4 GHz
Overclocked clock speed (Water) 3.4 GHz 2.4 GHz
Overclocked clock speed (Air) 3.4 GHz 2.4 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

memory controller

Memory controller Built-in Built-in
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum memory size 1,572,864 MB 1,572,864 MB
Intel E5-2643V4
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Intel E5-2640V4
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