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Differences What are the advantages of each

Front view of Intel Xeon E5 4650 v2

Reasons to consider the
Intel Xeon E5 4650 v2

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Lower typical power consumption 77.19W vs 93.44W More than 15% lower typical power consumption
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Lower annual commercial energy cost 83.22 $/year vs 100.74 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 22.89 $/year vs 27.7 $/year More than 15% lower annual home energy cost
Newer Mar, 2014 vs Jul, 2013 Release date 8 months later
Front view of Intel Xeon E5 2670 v2

Reasons to consider the
Intel Xeon E5 2670 v2

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Significantly higher turbo clock speed 3.3 GHz vs 2.9 GHz Around 15% higher turbo clock speed
Much higher Maximum operating temperature 82 °C vs 75 °C Around 10% higher Maximum operating temperature
Higher clock speed 2.5 GHz vs 2.4 GHz Around 5% higher clock speed
Much better overclocked clock speed (Air) 2.8 GHz vs 2.4 GHz More than 15% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 2.5 GHz vs 2.4 GHz Around 5% better overclocked clock speed (Water)

Features Key features of the Xeon E5 4650 v2  vs 2670 v2 

clock speed

turbo clock speed

L3 cache

overclocked clock speed (air)

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Xeon E5 4650 v2  vs
2670 v2 
Clock speed 2.4 GHz 2.5 GHz
Turbo clock speed 2.9 GHz 3.3 GHz
Cores Dodeca core Deca core
Socket type
LGA 2011
Is unlocked No No

features

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

power consumption

TDP 95W 115W
Annual home energy cost 22.89 $/year 27.7 $/year
Annual commercial energy cost 83.22 $/year 100.74 $/year
Typical power consumption 77.19W 93.44W

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 4650 v2  vs
2670 v2 
Architecture x86-64 x86-64
Threads 20 20
L3 cache 25 MB 25 MB
Manufacture process 22 nm 22 nm
Max CPUs 4 2
Clock multiplier 24 25
Operating temperature Unknown - 75°C Unknown - 82°C

overclocking

Overclocked clock speed 2.4 GHz 2.8 GHz
Overclocked clock speed (Water) 2.4 GHz 2.5 GHz
Overclocked clock speed (Air) 2.4 GHz 2.8 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
DDR3-1866
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 59,733.32 MB/s
Intel Xeon E5 4650 v2
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Intel Xeon E5 2670 v2
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