CPUBoss Review Our evaluation of E5-2640 v3 vs E5-2450 v2 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

5.4

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E5-2640 v3 

CPUBoss recommends the Intel Xeon E5-2640 v3  based on its cost to run and value.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-2640 v3

Reasons to consider the
Intel Xeon E5-2640 v3

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Much better performance per watt 24.65 pt/W vs 4.05 pt/W More than 6x better performance per watt
Much better performance per dollar 2.22 pt/$ vs 0.35 pt/$ Around 6.5x better performance per dollar
Supports more RAM 786,432 MB vs 393,216 MB Supports 2x more RAM
Higher clock speed 2.6 GHz vs 2.5 GHz Around 5% higher clock speed
Higher turbo clock speed 3.4 GHz vs 3.3 GHz Around 5% higher turbo clock speed
Newer Jul, 2014 vs Jan, 2014 Release date 6 months later
Front view of Intel Xeon E5-2450 v2

Reasons to consider the
Intel Xeon E5-2450 v2

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Much higher Maximum operating temperature 80 °C vs 74.3 °C Around 10% higher Maximum operating temperature
Significantly better overclocked clock speed (Air) 2.9 GHz vs 2.6 GHz More than 10% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 2.9 GHz vs 2.6 GHz More than 10% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5-2640 v3 vs E5-2450 v2

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 E5-2640 v3
3,450,000 MB/s
Xeon E5-2450 v2
1,800 MB/s

Specifications Full list of technical specs

summary

Xeon E5-2640 v3  vs
E5-2450 v2 
Clock speed 2.6 GHz 2.5 GHz
Turbo clock speed 3.4 GHz 3.3 GHz
Cores Octa core Octa 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 90W 95W
Annual home energy cost 21.68 $/year 22.89 $/year
Annual commercial energy cost 78.84 $/year 83.22 $/year
Performance per watt 24.65 pt/W 4.05 pt/W
Typical power consumption 73.13W 77.19W

bus

Architecture QPI QPI
Number of links 2 1
Data rate 64,000 MB/s 32,000 MB/s
Transfer rate 8,000 MT/s 8,000 MT/s
Clock speed 4,000 MHz 4,000 MHz

details

Xeon E5-2640 v3  vs
E5-2450 v2 
Architecture x86-64 x86-64
Threads 16 16
L3 cache 20 MB 20 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 2 2
Operating temperature Unknown - 74.3°C Unknown - 80°C

overclocking

Overclocked clock speed 2.6 GHz 2.9 GHz
Overclocked clock speed (Water) 2.6 GHz 2.9 GHz
Overclocked clock speed (Air) 2.6 GHz 2.9 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
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
DDR
Channels Quad Channel Triple Channel
Supports ECC Yes Yes
Maximum bandwidth 6,400 MB/s 38,400 MB/s
Maximum memory size 786,432 MB 393,216 MB
Intel Xeon E5-2640 v3
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Intel Xeon E5-2450 v2
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