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Differences What are the advantages of each

Front view of Intel Xeon E7-8857 v2

Reasons to consider the
Intel Xeon E7-8857 v2

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Much more l3 cache 30 MB vs 15 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much higher clock speed 3 GHz vs 2.6 GHz More than 15% higher clock speed
Much more l2 cache 3 MB vs 1.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more RAM 1,572,864 MB vs 786,432 MB Supports 2x more RAM
Significantly higher turbo clock speed 3.6 GHz vs 3.1 GHz More than 15% higher turbo clock speed
Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
Newer Feb, 2014 vs Jul, 2013 Release date 7 months later
Front view of Intel Xeon E5 2630 v2

Reasons to consider the
Intel Xeon E5 2630 v2

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Much better performance per watt 16.27 pt/W vs 1.7 pt/W More than 9.5x better performance per watt
Much better performance per dollar 2.13 pt/$ vs 0.06 pt/$ Around 37x better performance per dollar
Much lower typical power consumption 65W vs 105.63W Around 40% lower typical power consumption
Much lower annual commercial energy cost 70.08 $/year vs 113.88 $/year Around 40% lower annual commercial energy cost
Much lower annual home energy cost 19.27 $/year vs 31.32 $/year Around 40% lower annual home energy cost

Benchmarks Real world tests of Xeon E7-8857 v2 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 E7-8857 v2
871.2 MB/s
Xeon E5 2630 v2
1,750,000 MB/s

Specifications Full list of technical specs

summary

Xeon E7-8857 v2  vs
E5 2630 v2 
Clock speed 3 GHz 2.6 GHz
Turbo clock speed 3.6 GHz 3.1 GHz
Cores Duodeca core Hexa 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 130W 80W
Annual home energy cost 31.32 $/year 19.27 $/year
Annual commercial energy cost 113.88 $/year 70.08 $/year
Performance per watt 1.7 pt/W 16.27 pt/W
Typical power consumption 105.63W 65W

bus

Architecture QPI QPI
Number of links 3 2
Data rate 96,000 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 E7-8857 v2  vs
E5 2630 v2 
Architecture x86-64 x86-64
Threads 12 12
L2 cache 3 MB 1.5 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 30 MB 15 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 8 2
Clock multiplier 30 26
Operating temperature Unknown - 73°C Unknown - 71°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
DDR3-1333
DDR3
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 42,666.64 MB/s 25,600 MB/s
Maximum memory size 1,572,864 MB 786,432 MB
Intel Xeon E7-8857 v2
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Intel Xeon E5 2630 v2
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