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Differences What are the advantages of each

Front view of AMD Opteron 275

Reasons to consider the
AMD Opteron 275

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Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Significantly lower typical power consumption 69.06W vs 89.38W Around 25% lower typical power consumption
Better geekbench 3 Multi-Core score 2,534 vs 1,852 More than 35% better geekbench 3 Multi-Core score
Significantly lower annual home energy cost 20.48 $/year vs 26.5 $/year Around 25% lower annual home energy cost
Significantly lower annual commercial energy cost 74.46 $/year vs 96.36 $/year Around 25% lower annual commercial energy cost
Front view of AMD Opteron 180

Reasons to consider the
AMD Opteron 180

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Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better geekbench 3 AES single core score 67,150 MB/s vs 60,200 MB/s More than 10% better geekbench 3 AES single core score
Higher clock speed 2.4 GHz vs 2.2 GHz Around 10% higher clock speed
Better overclocked clock speed (Air) 2.99 GHz vs 2.2 GHz More than 35% better overclocked clock speed (Air)
Newer Sep, 2005 vs May, 2005 Release date 3 months later
Slightly better overclocked clock speed (Water) 2.4 GHz vs 2.2 GHz Around 10% better overclocked clock speed (Water)

Benchmarks Real world tests of Opteron 275 vs 180

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Opteron 275
2,534
Opteron 180
1,852

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Opteron 275
60,200 MB/s
Opteron 180
67,150 MB/s

PassMark Data courtesy Passmark

Opteron 275
1,291
Opteron 180
1,232

PassMark (Single Core)

Specifications Full list of technical specs

summary

Opteron 275  vs
180 
Clock speed 2.2 GHz 2.4 GHz
Cores Dual core Dual core
Socket type
940
939

features

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

details

Opteron 275  vs
180 
Threads 2 2
L2 cache 2 MB 2 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 90 nm 45 nm
Max CPUs 2 1
Clock multiplier 11 12
Voltage range 1.2 - UnknownV 1.3 - UnknownV
Operating temperature 0 - 67°C 0 - 65°C

overclocking

Overclocked clock speed 2.2 GHz 2.99 GHz
Overclocked clock speed (Water) 2.2 GHz 2.4 GHz
PassMark (Overclocked) 1,303.6 2,238.6
Overclocked clock speed (Air) 2.2 GHz 2.99 GHz

power consumption

TDP 85W 110W
Annual home energy cost 20.48 $/year 26.5 $/year
Annual commercial energy cost 74.46 $/year 96.36 $/year
Performance per watt 0.87 pt/W 0.68 pt/W
Typical power consumption 69.06W 89.38W
AMD Opteron 275
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AMD Opteron 180
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