CPUBoss Review Our evaluation of 2356 vs 640 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

5.1

CPUBoss Score

Combination of all six facets

Winner
AMD Athlon II X4 640 

CPUBoss recommends the AMD Athlon II X4 640  based on its performance and single-core performance.

See full details

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VS

Differences What are the advantages of each

Front view of AMD Opteron 2356

Reasons to consider the
AMD Opteron 2356

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Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Significantly better geekbench 3 Multi-Core score 7,681 vs 5,434 More than 40% better geekbench 3 Multi-Core score
Lower typical power consumption 60.94W vs 77.19W More than 20% lower typical power consumption
Slightly more l3 cache 2 MB vs 0 MB Compared to all cpus, 2 MB l3 cache is just OK
More l3 cache per core 0.5 MB/core vs 0 MB/core Compared to all cpus, 0.5 MB/core l3 cache per core is just OK
Lower annual home energy cost 18.07 $/year vs 22.89 $/year More than 20% lower annual home energy cost
Lower annual commercial energy cost 65.7 $/year vs 83.22 $/year More than 20% lower annual commercial energy cost
Front view of AMD Athlon II X4 640

Reasons to consider the
AMD Athlon II X4 640

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Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3 GHz vs 2.3 GHz More than 30% higher clock speed
Significantly better overclocked clock speed (Air) 3.57 GHz vs 2.43 GHz More than 45% better overclocked clock speed (Air)
Significantly higher Maximum operating temperature 71 °C vs 55 °C Around 30% higher Maximum operating temperature
Better geekbench 3 single core score 1,559 vs 1,090 Around 45% better geekbench 3 single core score
Newer May, 2010 vs Apr, 2008 Release date over 2 years later
Much better overclocked clock speed (Water) 3.89 GHz vs 2.3 GHz Around 70% better overclocked clock speed (Water)

Benchmarks Real world tests of Opteron 2356 vs Athlon II X4 640

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

Opteron 2356
86.9 MB/s
Athlon II X4 640
121,100 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Opteron 2356  vs
Athlon II X4 640 
Clock speed 2.3 GHz 3 GHz
Cores Quad core Quad core
Socket type
F
AM3
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 75W 95W
Annual home energy cost 18.07 $/year 22.89 $/year
Annual commercial energy cost 65.7 $/year 83.22 $/year
Performance per watt 1.36 pt/W 1.54 pt/W
Typical power consumption 60.94W 77.19W

details

Opteron 2356  vs
Athlon II X4 640 
Threads 4 4
L2 cache 2 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 2 MB 0 MB
L3 cache per core 0.5 MB/core 0 MB/core
Manufacture process 65 nm 45 nm
Max CPUs 2 1
Voltage range 1 - UnknownV 1.05 - 1.4V
Operating temperature 0 - 55°C Unknown - 71°C

overclocking

Overclocked clock speed 2.43 GHz 3.57 GHz
Overclocked clock speed (Water) 2.3 GHz 3.89 GHz
Overclocked clock speed (Air) 2.43 GHz 3.57 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

bus

Clock speed 2,000 MHz 2,000 MHz
AMD Opteron 2356
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AMD Athlon II X4 640
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