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Differences What are the advantages of each

Front view of Intel Xeon E5-2630 v3

Reasons to consider the
Intel Xeon E5-2630 v3

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much more l3 cache 20 MB vs 15 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 16 vs 12 4 more threads
Higher turbo clock speed 3.2 GHz vs 3.1 GHz Around 5% higher turbo clock speed
Much better overclocked clock speed (Water) 2.4 GHz vs 2 GHz More than 20% better overclocked clock speed (Water)
Newer Jul, 2014 vs Jul, 2013 Release date a year later
Front view of Intel Xeon E5 2630 v2

Reasons to consider the
Intel Xeon E5 2630 v2

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Significantly higher clock speed 2.6 GHz vs 2.4 GHz Around 10% higher clock speed
Much better performance per watt 16.27 pt/W vs 3.52 pt/W More than 4.5x better performance per watt
Much better performance per dollar 2.13 pt/$ vs 0.44 pt/$ More than 4.8x better performance per dollar

Benchmarks Real world tests of Xeon E5-2630 v3 vs E5 2630 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 E5-2630 v3
2,230 MB/s
Xeon E5 2630 v2
1,750,000 MB/s

Specifications Full list of technical specs

summary

Xeon E5-2630 v3  vs
E5 2630 v2 
Clock speed 2.4 GHz 2.6 GHz
Turbo clock speed 3.2 GHz 3.1 GHz
Cores Octa core Hexa core
Is unlocked Yes 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
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 85W 80W
Annual home energy cost 20.48 $/year 19.27 $/year
Annual commercial energy cost 74.46 $/year 70.08 $/year
Performance per watt 3.52 pt/W 16.27 pt/W
Typical power consumption 69.06W 65W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 64,000 MB/s 57,600 MB/s
Transfer rate 8,000 MT/s 7,200 MT/s
Clock speed 4,000 MHz 3,600 MHz

details

Xeon E5-2630 v3  vs
E5 2630 v2 
Architecture x86-64 x86-64
Threads 16 12
L3 cache 20 MB 15 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 - 72.1°C Unknown - 71°C

overclocking

Overclocked clock speed 2.75 GHz 2.79 GHz
Overclocked clock speed (Water) 2.4 GHz 2 GHz
Overclocked clock speed (Air) 2.75 GHz 2.79 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
DDR
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 6,400 MB/s 25,600 MB/s
Maximum memory size 786,432 MB 786,432 MB
Intel Xeon E5-2630 v3
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Intel Xeon E5 2630 v2
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