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Differences What are the advantages of each

Front view of AMD Opteron 6272

Reasons to consider the
AMD Opteron 6272

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Much more l2 cache 16 MB vs 1 MB 16x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 16 vs 1 15 more cores; run more applications at once
More threads 16 vs 1 15 more threads
Much better PassMark score 6,748 vs 693 Around 9.8x better PassMark score
Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per watt 6.12 pt/W vs 0.69 pt/W More than 8.8x better performance per watt
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Newer Nov, 2011 vs Aug, 2005 Release date over 6 years later
Front view of AMD Opteron 254

Reasons to consider the
AMD Opteron 254

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Much higher clock speed 2.8 GHz vs 2.1 GHz Around 35% higher clock speed
Lower typical power consumption 75.24W vs 93.44W Around 20% lower typical power consumption
Better overclocked clock speed (Air) 3 GHz vs 2.9 GHz Around 5% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 2.8 GHz vs 2.4 GHz More than 15% better overclocked clock speed (Water)
Lower annual commercial energy cost 81.12 $/year vs 100.74 $/year Around 20% lower annual commercial energy cost
Lower annual home energy cost 22.31 $/year vs 27.7 $/year Around 20% lower annual home energy cost

Benchmarks Real world tests of Opteron 6272 vs 254

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Opteron 6272  vs
254 
Clock speed 2.1 GHz 2.8 GHz
Cores 16 core Single core
Socket type
G34
940

features

Has a NX bit Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
SSE3
SSE
3DNow!
Supplemental SSE3
AES

details

Opteron 6272  vs
254 
Threads 16 1
L2 cache 16 MB 1 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 4 2
Clock multiplier 15 14
Operating temperature Unknown - 55°C 0 - 67°C

overclocking

Overclocked clock speed 2.9 GHz 3 GHz
Overclocked clock speed (Water) 2.4 GHz 2.8 GHz
Overclocked clock speed (Air) 2.9 GHz 3 GHz

power consumption

TDP 115W 92.6W
Annual home energy cost 27.7 $/year 22.31 $/year
Annual commercial energy cost 100.74 $/year 81.12 $/year
Performance per watt 6.12 pt/W 0.69 pt/W
Typical power consumption 93.44W 75.24W
AMD Opteron 6272
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AMD Opteron 254
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