CPUBoss Review Our evaluation of E7-8837 vs E5-2620 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

No winner declared

Too close to call

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VS

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 higher clock speed 2.66 GHz vs 2 GHz Around 35% higher clock speed
Much more l3 cache 24 MB vs 15 MB 60% more l3 cache; more data can be stored in the l3 cache for quick access later
Higher turbo clock speed 2.8 GHz vs 2.5 GHz More than 10% higher turbo clock speed
Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
Much better overclocked clock speed (Air) 2.67 GHz vs 2.28 GHz More than 15% better overclocked clock speed (Air)
More l3 cache per core 3 MB/core vs 2.5 MB/core 20% more l3 cache per core
Much better overclocked clock speed (Water) 2.67 GHz vs 2 GHz Around 35% better overclocked clock speed (Water)
Front view of Intel Xeon E5-2620

Reasons to consider the
Intel Xeon E5-2620

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Much better performance per dollar 1.52 pt/$ vs 0.36 pt/$ Around 4.2x better performance per dollar
More threads 12 vs 8 4 more threads
Significantly lower typical power consumption 77.19W vs 105.63W More than 25% lower typical power consumption
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Significantly lower annual commercial energy cost 83.22 $/year vs 113.88 $/year More than 25% lower annual commercial energy cost
Significantly lower annual home energy cost 22.89 $/year vs 31.32 $/year More than 25% 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 E5-2620

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E7-8837
18,182
Xeon E5-2620
10,510

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 E5-2620
1,315,000 MB/s

Specifications Full list of technical specs

summary

Xeon E7-8837  vs
E5-2620 
Clock speed 2.66 GHz 2 GHz
Turbo clock speed 2.8 GHz 2.5 GHz
Cores Octa core Hexa 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 95W
Annual home energy cost 31.32 $/year 22.89 $/year
Annual commercial energy cost 113.88 $/year 83.22 $/year
Performance per watt 6.33 pt/W 6.57 pt/W
Typical power consumption 105.63W 77.19W

bus

Architecture QPI QPI
Number of links 1 2
Data rate 25,600 MB/s 57,600 MB/s
Transfer rate 6,400 MT/s 7,200 MT/s
Clock speed 3,200 MHz 3,600 MHz

details

Xeon E7-8837  vs
E5-2620 
Architecture x86-64 x86-64
Threads 8 12
L2 cache 2 MB 2 MB
L2 cache per core 0.25 MB/core 0.33 MB/core
L3 cache 24 MB 15 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 25
Operating temperature Unknown - 69°C Unknown - 77.4°C

overclocking

Overclocked clock speed 2.67 GHz 2.28 GHz
Overclocked clock speed (Water) 2.67 GHz 2 GHz
Overclocked clock speed (Air) 2.67 GHz 2.28 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
DDR3-1333
DDR3-1066
DDR3
DDR3-800
DDR
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 42,666.64 MB/s
Maximum memory size 4,194,304 MB 393,216 MB
Intel Xeon E7-8837
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Intel Xeon E5-2620
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