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Differences What are the advantages of each

Front view of AMD Phenom II X4 965

Reasons to consider the
AMD Phenom II X4 965

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CPUBoss is not aware of any important advantages of the Phenom II X4 965 vs the Athlon 64 FX 51.

Front view of AMD Athlon 64 FX 51

Reasons to consider the
AMD Athlon 64 FX 51

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CPUBoss is not aware of any important advantages of the Athlon 64 FX 51 vs the Phenom II X4 965.

Benchmarks Real world tests of Phenom II X4 965 vs Athlon 64 FX 51

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Phenom II X4 965  vs
Athlon 64 FX 51 
Clock speed 3.4 GHz 2.2 GHz
Cores Quad core Single core
Socket type
AM3
940

features

Has a NX bit Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!

details

Phenom II X4 965  vs
Athlon 64 FX 51 
Threads 4 1
L2 cache 2 MB 1 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 45 nm 130 nm
Max CPUs 1 1
Operating temperature Unknown - 62°C Unknown - 70°C

overclocking

Overclock popularity 22 1
Overclock review score 5 0
Overclocked clock speed 4.05 GHz 2.43 GHz
Overclocked clock speed (Water) 4.22 GHz 2.2 GHz
Overclocked clock speed (Air) 4.05 GHz 2.43 GHz

power consumption

TDP 140W 89W
Annual home energy cost 54.06 $/year 21.44 $/year
Annual commercial energy cost 152.42 $/year 77.96 $/year
Performance per watt 1.08 pt/W 0.2 pt/W
Typical power consumption 152.93W 72.31W
AMD Phenom II X4 965
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AMD Athlon 64 FX 51
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