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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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Much newer manufacturing process 45 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 3.4 GHz vs 1.4 GHz Around 2.5x higher clock speed
Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better overclocked clock speed (Air) 4.05 GHz vs 1.4 GHz Around 3x better overclocked clock speed (Air)
Significantly better PassMark score 5,916 vs 396 Around 15x better PassMark score
More cores 4 vs 1 3 more cores; run more applications at once
Newer Nov, 2009 vs Jun, 2003 Release date over 6 years later
More threads 4 vs 1 3 more threads
Much better overclocked clock speed (Water) 4.22 GHz vs 1.4 GHz More than 3x better overclocked clock speed (Water)
Better performance per watt 1.08 pt/W vs 0.2 pt/W Around 5.5x better performance per watt
Front view of AMD Opteron 140

Reasons to consider the
AMD Opteron 140

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Much lower typical power consumption 66.71W vs 152.93W 2.3x lower typical power consumption
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Much lower annual home energy cost 19.78 $/year vs 54.06 $/year 2.7x lower annual home energy cost
Much lower annual commercial energy cost 71.92 $/year vs 152.42 $/year 2.1x lower annual commercial energy cost

Benchmarks Real world tests of Phenom II X4 965 vs Opteron 140

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Phenom II X4 965  vs
Opteron 140 
Clock speed 3.4 GHz 1.4 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
Opteron 140 
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
Clock multiplier 17 7
Voltage range 0.85 - 1.43V 1.5 - UnknownV

overclocking

Overclocked clock speed 4.05 GHz 1.4 GHz
Overclocked clock speed (Water) 4.22 GHz 1.4 GHz
Overclocked clock speed (Air) 4.05 GHz 1.4 GHz

power consumption

TDP 140W 82.1W
Annual home energy cost 54.06 $/year 19.78 $/year
Annual commercial energy cost 152.42 $/year 71.92 $/year
Performance per watt 1.08 pt/W 0.2 pt/W
Typical power consumption 152.93W 66.71W
AMD Phenom II X4 965
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AMD Opteron 140
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