CPUBoss Review Our evaluation of E5620 vs 6172 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

5.2

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E5620 

CPUBoss recommends the Intel Xeon E5620  based on its cost to run.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5620

Reasons to consider the
Intel Xeon E5620

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Much higher clock speed 2.4 GHz vs 2.1 GHz Around 15% higher clock speed
Much better performance per watt 7.59 pt/W vs 0.99 pt/W Around 7.8x better performance per watt
Much better overclocked clock speed (Air) 3.75 GHz vs 2.5 GHz Around 50% better overclocked clock speed (Air)
Much more l3 cache per core 3 MB/core vs 1 MB/core 3x more l3 cache per core
Significantly lower typical power consumption 65W vs 93.44W More than 30% lower typical power consumption
Much better overclocked clock speed (Water) 4.33 GHz vs 2.1 GHz More than 2x better overclocked clock speed (Water)
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly lower annual commercial energy cost 70.08 $/year vs 100.74 $/year More than 30% lower annual commercial energy cost
Significantly lower annual home energy cost 19.27 $/year vs 27.7 $/year More than 30% lower annual home energy cost
Front view of AMD Opteron 6172

Reasons to consider the
AMD Opteron 6172

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 12 vs 4 Three times as many cores; run more applications at once
More threads 12 vs 8 4 more threads
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration

Benchmarks Real world tests of Xeon E5620 vs Opteron 6172

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5620
14,086
Opteron 6172
3,906

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5620
1,898
Opteron 6172
1,050

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5620
1,280,000 MB/s
Opteron 6172
88,100 MB/s

Specifications Full list of technical specs

summary

Xeon E5620  vs
Opteron 6172 
Clock speed 2.4 GHz 2.1 GHz
Cores Quad core Duodeca core
Socket type
LGA 1366
G34

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
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 E5620  vs
Opteron 6172 
Threads 8 12
L2 cache 1 MB 6 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 12 MB 12 MB
L3 cache per core 3 MB/core 1 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 2 4
Clock multiplier 18 10
Voltage range 0.75 - 1.35V 1.19 - UnknownV
Operating temperature Unknown - 77.6°C Unknown - 55°C

overclocking

Overclock popularity 12 1
Overclocked clock speed 3.75 GHz 2.5 GHz
Overclocked clock speed (Water) 4.33 GHz 2.1 GHz
Overclocked clock speed (Air) 3.75 GHz 2.5 GHz

power consumption

TDP 80W 115W
Annual home energy cost 19.27 $/year 27.7 $/year
Annual commercial energy cost 70.08 $/year 100.74 $/year
Performance per watt 7.59 pt/W 0.99 pt/W
Typical power consumption 65W 93.44W

bus

Architecture QPI HyperTransport 3.0
Clock speed 2,930 MHz 3,200 MHz
Intel Xeon E5620
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AMD Opteron 6172
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