CPUBoss Review Our evaluation of E5-2620 vs 6136 among all CPUs

Performance

Benchmark performance using all cores
Xeon E5-2620
6.0
Opteron 6136
5.8
Xeon X5650
6.2
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance
Xeon E5-2620
7.9
Opteron 6136
5.4
Xeon X5650
8.1
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics
Xeon E5-2620
n.d.
Opteron 6136
n.d.
Xeon X5650
n.d.
Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing
Xeon E5-2620
0.0
Opteron 6136
0.0
Xeon X5650
0.0
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?
Xeon E5-2620
5.0
Opteron 6136
5.0
Xeon X5650
5.0
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?
Xeon E5-2620
n.d.
Opteron 6136
n.d.
Xeon X5650
n.d.
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more
5.3

CPUBoss Score

Combination of all six facets
Xeon E5-2620
5.3
Opteron 6136
4.6
Xeon X5650
5.4

Winner
Intel Xeon E5-2620 

CPUBoss recommends the Intel Xeon E5-2620  based on its performance, single-core performance and cost to run.

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VS

Intel Xeon E5-2620

CPUBoss Winner
 Front view of Intel Xeon E5-2620
Front view of AMD Opteron 6136

AMD Opteron 6136

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Differences What are the advantages of each

Front view of Intel Xeon E5-2620

Reasons to consider the
Intel Xeon E5-2620

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much better PassMark score 7,957 vs 4,631 More than 70% better PassMark score
Significantly more l3 cache 15 MB vs 12 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better performance per watt 6.57 pt/W vs 1.44 pt/W More than 4.5x better performance per watt
More threads 12 vs 8 4 more threads
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l3 cache per core 2.5 MB/core vs 1.5 MB/core More than 65% more l3 cache per core
Lower typical power consumption 77.19W vs 93.44W More than 15% lower typical power consumption
Newer Mar, 2012 vs Mar, 2010 Release date over 1 years later
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
Front view of AMD Opteron 6136

Reasons to consider the
AMD Opteron 6136

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Much more l2 cache 4 MB vs 2 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 2.4 GHz vs 2 GHz Around 20% higher clock speed
Significantly more l2 cache per core 0.5 MB/core vs 0.33 MB/core More than 50% more l2 cache per core
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Better overclocked clock speed (Air) 2.4 GHz vs 2.28 GHz More than 5% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 2.4 GHz vs 2 GHz Around 20% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5-2620 vs Opteron 6136

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-2620
10,510
Opteron 6136
16,500

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5-2620
1,736
Opteron 6136
1,215

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2620
1,315,000 MB/s
Opteron 6136
99.8 MB/s

PassMark Data courtesy Passmark

Xeon E5-2620
7,957
Opteron 6136
4,631

PassMark (Single Core)

Xeon E5-2620
1,231
Opteron 6136
534

Specifications Full list of technical specs

summary

 Xeon E5-2620  vs
Opteron 6136 
Clock speed 2 GHz 2.4 GHz
Cores Hexa core Octa core
Socket type
LGA 2011
G34
Is unlocked Yes No

features
Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES

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

details

 Xeon E5-2620  vs
Opteron 6136 
Threads 12 8
L2 cache 2 MB 4 MB
L2 cache per core 0.33 MB/core 0.5 MB/core
L3 cache 15 MB 12 MB
L3 cache per core 2.5 MB/core 1.5 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 2 4
Clock multiplier 25 12
Voltage range 0.6 - 1.35V 1 - UnknownV
Operating temperature Unknown - 77.4°C Unknown - 55°C

overclocking
Overclock popularity 4 0
Overclocked clock speed 2.28 GHz 2.4 GHz
Overclocked clock speed (Water) 2 GHz 2.4 GHz
Overclocked clock speed (Air) 2.28 GHz 2.4 GHz

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
Performance per watt 6.57 pt/W 1.44 pt/W
Typical power consumption 77.19W 93.44W

bus
Architecture QPI HyperTransport 3.0
Clock speed 3,600 MHz 3,200 MHz
Intel Xeon E5-2620
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AMD Opteron 6136
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