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Differences What are the advantages of each

Front view of Intel Xeon E7-8837

Reasons to consider the
Intel Xeon E7-8837

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Supports more RAM 4,194,304 MB vs 393,216 MB Supports around 10.8x more RAM
Much more l3 cache 24 MB vs 20 MB 20% more l3 cache; more data can be stored in the l3 cache for quick access later
Higher clock speed 2.66 GHz vs 2.6 GHz Almost the same
Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
More l3 cache per core 3 MB/core vs 2.5 MB/core 20% more l3 cache per core
Front view of Intel Xeon E5-2670

Reasons to consider the
Intel Xeon E5-2670

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Significantly higher turbo clock speed 3.3 GHz vs 2.8 GHz Around 20% higher turbo clock speed
More threads 16 vs 8 Twice as many threads
Much higher Maximum operating temperature 80 °C vs 69 °C More than 15% higher Maximum operating temperature
Much better overclocked clock speed (Air) 3.13 GHz vs 2.67 GHz More than 15% better overclocked clock speed (Air)
Lower typical power consumption 93.44W vs 105.63W More than 10% lower typical power consumption
Much better overclocked clock speed (Water) 3.08 GHz vs 2.67 GHz More than 15% better overclocked clock speed (Water)
Lower annual commercial energy cost 100.74 $/year vs 113.88 $/year More than 10% lower annual commercial energy cost
Lower annual home energy cost 27.7 $/year vs 31.32 $/year More than 10% lower annual home energy cost
Newer Mar, 2012 vs Apr, 2011 Release date 11 months later

Benchmarks Real world tests of Xeon E7-8837 vs E5-2670

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E7-8837
18,182
Xeon E5-2670
14,255

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E7-8837
1,065,000 MB/s
Xeon E5-2670
1,740,000 MB/s

Specifications Full list of technical specs

summary

Xeon E7-8837  vs
E5-2670 
Clock speed 2.66 GHz 2.6 GHz
Turbo clock speed 2.8 GHz 3.3 GHz
Cores Octa core Octa core
Socket type
LGA 1567
LGA 2011

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 115W
Annual home energy cost 31.32 $/year 27.7 $/year
Annual commercial energy cost 113.88 $/year 100.74 $/year
Performance per watt 6.33 pt/W 7.31 pt/W
Typical power consumption 105.63W 93.44W

bus

Architecture QPI QPI
Number of links 1 2
Data rate 25,600 MB/s 64,000 MB/s
Transfer rate 6,400 MT/s 8,000 MT/s
Clock speed 3,200 MHz 4,000 MHz

details

Xeon E7-8837  vs
E5-2670 
Architecture x86-64 x86-64
Threads 8 16
L2 cache 2 MB 2 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 24 MB 20 MB
L3 cache per core 3 MB/core 2.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 8 2
Clock multiplier 20 33
Operating temperature Unknown - 69°C Unknown - 80°C

overclocking

Overclocked clock speed 2.67 GHz 3.13 GHz
Overclocked clock speed (Water) 2.67 GHz 3.08 GHz
Overclocked clock speed (Air) 2.67 GHz 3.13 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 Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 51,200 MB/s
Maximum memory size 4,194,304 MB 393,216 MB
Intel Xeon E7-8837
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Intel Xeon E5-2670
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