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Differences What are the advantages of each

Front view of AMD Phenom X3 8650

Reasons to consider the
AMD Phenom X3 8650

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Much better geekbench 3 AES single core score 88,400 MB/s vs 44.55 MB/s More than 1984.2x better geekbench 3 AES single core score
Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.3 GHz vs 1.8 GHz Around 30% higher clock speed
Significantly better overclocked clock speed (Air) 2.83 GHz vs 1.8 GHz More than 55% better overclocked clock speed (Air)
Newer Apr, 2008 vs Jan, 2005 Release date over 3 years later
More cores 3 vs 2 1 more cores; run more applications at once
Significantly better overclocked clock speed (Water) 3.09 GHz vs 1.8 GHz More than 70% better overclocked clock speed (Water)
Front view of AMD Opteron 865

Reasons to consider the
AMD Opteron 865

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Better geekbench 3 Multi-Core score 4,726 vs 2,998 Around 60% better geekbench 3 Multi-Core score
Significantly more l2 cache per core 1 MB/core vs 0.67 MB/core More than 50% more l2 cache per core
Lower typical power consumption 69.06W vs 77.19W More than 10% lower typical power consumption
Lower annual home energy cost 20.48 $/year vs 22.89 $/year More than 10% lower annual home energy cost
Lower annual commercial energy cost 74.46 $/year vs 83.22 $/year More than 10% lower annual commercial energy cost

Benchmarks Real world tests of Phenom X3 8650 vs Opteron 865

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Phenom X3 8650
88,400 MB/s
Opteron 865
44.55 MB/s

Specifications Full list of technical specs

summary

Phenom X3 8650  vs
Opteron 865 
Clock speed 2.3 GHz 1.8 GHz
Cores Tri core Dual core
Socket type
AM2+
940

features

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

details

Phenom X3 8650  vs
Opteron 865 
Threads 3 2
L2 cache 2 MB 2 MB
L2 cache per core 0.67 MB/core 1 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 1 8
Operating temperature Unknown - 70°C 0 - 67°C

overclocking

Overclocked clock speed 2.83 GHz 1.8 GHz
Overclocked clock speed (Water) 3.09 GHz 1.8 GHz
Overclocked clock speed (Air) 2.83 GHz 1.8 GHz

power consumption

TDP 95W 85W
Annual home energy cost 22.89 $/year 20.48 $/year
Annual commercial energy cost 83.22 $/year 74.46 $/year
Performance per watt 1.03 pt/W 0.75 pt/W
Typical power consumption 77.19W 69.06W
AMD Phenom X3 8650
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AMD Opteron 865
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