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Differences What are the advantages of each

Front view of AMD Opteron 280

Reasons to consider the
AMD Opteron 280

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Much 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
More threads 2 vs 1 Twice as many threads
Newer Sep, 2005 vs Feb, 2005 Release date 7 months later
Front view of AMD Opteron 252

Reasons to consider the
AMD Opteron 252

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Significantly higher clock speed 2.6 GHz vs 2.4 GHz Around 10% higher clock speed
Significantly lower typical power consumption 55.25W vs 77.19W Around 30% lower typical power consumption
Better overclocked clock speed (Air) 2.73 GHz vs 2.67 GHz Almost the same
Significantly lower annual commercial energy cost 59.57 $/year vs 83.22 $/year Around 30% lower annual commercial energy cost
Significantly lower annual home energy cost 16.38 $/year vs 22.89 $/year Around 30% lower annual home energy cost
Significantly better overclocked clock speed (Water) 2.6 GHz vs 2.4 GHz Around 10% better overclocked clock speed (Water)

Benchmarks Real world tests of Opteron 280 vs 252

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Opteron 280  vs
252 
Clock speed 2.4 GHz 2.6 GHz
Cores Dual core Single core
Socket type
940

features

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

details

Opteron 280  vs
252 
Threads 2 1
L2 cache 2 MB 1 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 90 nm 90 nm
Max CPUs 2 2
Clock multiplier 12 13
Voltage range 1 - UnknownV 1.3 - UnknownV
Operating temperature 0 - 67°C 0 - 67°C

overclocking

Overclocked clock speed 2.67 GHz 2.73 GHz
Overclocked clock speed (Water) 2.4 GHz 2.6 GHz
PassMark (Overclocked) 1,347.7 1,037.9
Overclocked clock speed (Air) 2.67 GHz 2.73 GHz

power consumption

TDP 95W 68W
Annual home energy cost 22.89 $/year 16.38 $/year
Annual commercial energy cost 83.22 $/year 59.57 $/year
Performance per watt 0.94 pt/W 0.46 pt/W
Typical power consumption 77.19W 55.25W
AMD Opteron 280
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AMD Opteron 252
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