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Differences What are the advantages of each

Front view of AMD Phenom II X4 955

Reasons to consider the
AMD Phenom II X4 955

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CPUBoss is not aware of any important advantages of the Phenom II X4 955 vs the Athlon II X4 650.

Front view of AMD Athlon II X4 650

Reasons to consider the
AMD Athlon II X4 650

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CPUBoss is not aware of any important advantages of the Athlon II X4 650 vs the Phenom II X4 955.

Benchmarks Real world tests of Phenom II X4 955 vs Athlon II X4 650

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 X4 955
129,850 MB/s
Athlon II X4 650
128,700 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom II X4 955  vs
Athlon II X4 650 
Clock speed 3.2 GHz 3.2 GHz
Cores Quad core Quad core

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

bus

Clock speed 2,000 MHz 2,000 MHz

details

Phenom II X4 955  vs
Athlon II X4 650 
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 3.99 GHz 0.73 GHz
Overclocked clock speed (Water) 4.14 GHz 0.65 GHz
Overclocked clock speed (Air) 3.99 GHz 0.73 GHz

power consumption

TDP 125W 95W
Annual home energy cost 30.11 $/year 22.89 $/year
Annual commercial energy cost 109.5 $/year 83.22 $/year
Performance per watt 1.28 pt/W 1.61 pt/W
Typical power consumption 101.56W 77.19W
AMD Phenom II X4 955
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AMD Athlon II X4 650
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