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Differences What are the advantages of each

Front view of AMD Opteron 885

Reasons to consider the
AMD Opteron 885

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Much better geekbench 3 AES single core score 71,800 MB/s vs 54.2 MB/s Around 1324.8x better geekbench 3 AES single core score
Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
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 geekbench 3 Multi-Core score 6,967 vs 1,563 Around 4.5x better geekbench 3 Multi-Core score
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Better performance per watt 1.56 pt/W vs 0.78 pt/W Around 2x better performance per watt
Front view of AMD Athlon X2 5200+

Reasons to consider the
AMD Athlon X2 5200+

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Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Lower typical power consumption 52.81W vs 69.06W Around 25% lower typical power consumption
Newer Aug, 2010 vs Mar, 2006 Release date over 4 years later
Significantly better overclocked clock speed (Air) 3.61 GHz vs 2.75 GHz More than 30% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 3.38 GHz vs 2.6 GHz Around 30% better overclocked clock speed (Water)
Lower annual home energy cost 15.66 $/year vs 20.48 $/year Around 25% lower annual home energy cost
Lower annual commercial energy cost 56.94 $/year vs 74.46 $/year Around 25% lower annual commercial energy cost

Benchmarks Real world tests of Opteron 885 vs Athlon X2 5200+

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

Opteron 885
71,800 MB/s
Athlon X2 5200+
54.2 MB/s

Specifications Full list of technical specs

summary

Opteron 885  vs
Athlon X2 5200+ 
Clock speed 2.6 GHz 2.7 GHz
Cores Dual core Dual core
Socket type
940
AM3
AM2

features

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

details

Opteron 885  vs
Athlon X2 5200+ 
Threads 2 2
L2 cache 2 MB 1 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 90 nm 65 nm
Max CPUs 8 1
Voltage range 1 - UnknownV 0.95 - 1.4V
Operating temperature 0 - 67°C 55 - 68°C

overclocking

Overclocked clock speed 2.75 GHz 3.61 GHz
Overclocked clock speed (Water) 2.6 GHz 3.38 GHz
PassMark (Overclocked) 1,341.4 1,603.5
Overclocked clock speed (Air) 2.75 GHz 3.61 GHz

power consumption

TDP 85W 65W
Annual home energy cost 20.48 $/year 15.66 $/year
Annual commercial energy cost 74.46 $/year 56.94 $/year
Performance per watt 1.56 pt/W 0.78 pt/W
Typical power consumption 69.06W 52.81W
AMD Opteron 885
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AMD Athlon X2 5200+
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