CPUBoss Review Our evaluation of N950 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

No winner declared

Too close to call

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VS
Front view of AMD Athlon II X4 640

AMD Athlon II X4 640

CPUBoss Winner

Differences What are the advantages of each

Front view of AMD Phenom II N950

Reasons to consider the
AMD Phenom II N950

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Much lower typical power consumption 28.44W vs 77.19W 2.7x lower typical power consumption
Much lower annual home energy cost 8.43 $/year vs 22.89 $/year 2.7x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 83.22 $/year 2.7x lower annual commercial energy cost
Better performance per watt 2.92 pt/W vs 1.54 pt/W More than 90% better performance per watt
Newer Oct, 2010 vs May, 2010 Release date 5 months later
Front view of AMD Athlon II X4 640

Reasons to consider the
AMD Athlon II X4 640

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Significantly higher clock speed 3 GHz vs 2.1 GHz Around 45% higher clock speed
Much better overclocked clock speed (Air) 3.57 GHz vs 2.1 GHz More than 70% better overclocked clock speed (Air)
Better geekbench 3 Multi-Core score 5,434 vs 3,797 Around 45% better geekbench 3 Multi-Core score
Better geekbench 3 single core score 1,559 vs 1,045 Around 50% better geekbench 3 single core score
Much better overclocked clock speed (Water) 3.89 GHz vs 2.1 GHz More than 85% better overclocked clock speed (Water)

Benchmarks Real world tests of Phenom II N950 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

Phenom II N950
83,150 MB/s
Athlon II X4 640
121,100 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom II N950  vs
Athlon II X4 640 
Clock speed 2.1 GHz 3 GHz
Cores Quad core Quad core
Socket type
S1
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 35W 95W
Annual home energy cost 8.43 $/year 22.89 $/year
Annual commercial energy cost 30.66 $/year 83.22 $/year
Performance per watt 2.92 pt/W 1.54 pt/W
Typical power consumption 28.44W 77.19W

details

Phenom II N950  vs
Athlon II X4 640 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 2 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.1 GHz 3.57 GHz
Overclocked clock speed (Water) 2.1 GHz 3.89 GHz
Overclocked clock speed (Air) 2.1 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 1,800 MHz 2,000 MHz
AMD Phenom II N950
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AMD Athlon II X4 640
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