CPUBoss Review Our evaluation of E5-4640 v2 vs E5-2680 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

5.5

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E5-2680 

CPUBoss recommends the Intel Xeon E5-2680  based on its value.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-4640 v2

Reasons to consider the
Intel Xeon E5-4640 v2

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Supports more RAM 786,432 MB vs 393,216 MB Supports 2x more RAM
More threads 20 vs 16 4 more threads
Significantly lower typical power consumption 77.19W vs 105.63W More than 25% lower typical power consumption
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Significantly lower annual commercial energy cost 83.22 $/year vs 113.88 $/year More than 25% lower annual commercial energy cost
Significantly lower annual home energy cost 22.89 $/year vs 31.32 $/year More than 25% lower annual home energy cost
Newer Jan, 2014 vs Mar, 2012 Release date over 1 years later
Front view of Intel Xeon E5-2680

Reasons to consider the
Intel Xeon E5-2680

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Much higher clock speed 2.7 GHz vs 2.2 GHz Around 25% higher clock speed
Much higher turbo clock speed 3.5 GHz vs 2.7 GHz Around 30% higher turbo clock speed
Much better performance per watt 7.63 pt/W vs 0.98 pt/W More than 7.8x better performance per watt
Much higher Maximum operating temperature 85 °C vs 75 °C Around 15% higher Maximum operating temperature
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core

Benchmarks Real world tests of Xeon E5-4640 v2 vs E5-2680

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-4640 v2
103.35 MB/s
Xeon E5-2680
2,060,000 MB/s

Specifications Full list of technical specs

summary

Xeon E5-4640 v2  vs
E5-2680 
Clock speed 2.2 GHz 2.7 GHz
Turbo clock speed 2.7 GHz 3.5 GHz
Cores Deca core Octa core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 130W
Annual home energy cost 22.89 $/year 31.32 $/year
Annual commercial energy cost 83.22 $/year 113.88 $/year
Performance per watt 0.98 pt/W 7.63 pt/W
Typical power consumption 77.19W 105.63W

bus

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

details

Xeon E5-4640 v2  vs
E5-2680 
Architecture x86-64 x86-64
Threads 20 16
L3 cache 20 MB 20 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 4 2
Voltage range 0.65 - 1.3V 0.6 - 1.35V
Operating temperature Unknown - 75°C Unknown - 85°C

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
Memory type
DDR3-1866
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 59,733.32 MB/s 51,200 MB/s
Maximum memory size 786,432 MB 393,216 MB
Intel Xeon E5-4640 v2
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Intel Xeon E5-2680
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