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Differences What are the advantages of each

Front view of AMD Opteron 880

Reasons to consider the
AMD Opteron 880

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Lower typical power consumption 69.06W vs 77.19W More than 10% lower typical power consumption
Lower annual commercial energy cost 74.46 $/year vs 83.22 $/year More than 10% lower annual commercial energy cost
Lower annual home energy cost 20.48 $/year vs 22.89 $/year More than 10% lower annual home energy cost
Front view of AMD Athlon X4 860K

Reasons to consider the
AMD Athlon X4 860K

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Much newer manufacturing process 28 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l2 cache 4 MB vs 2 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3.7 GHz vs 2.4 GHz Around 55% higher clock speed
Much better geekbench 3 Multi-Core score 7,520 vs 1,379 Around 5.5x better geekbench 3 Multi-Core score
Much better geekbench 3 single core score 2,478 vs 922 Around 2.8x better geekbench 3 single core score
Much better performance per watt 9.83 pt/W vs 0.84 pt/W Around 11.8x better performance per watt
Much better overclocked clock speed (Air) 4.37 GHz vs 2.56 GHz More than 70% better overclocked clock speed (Air)
Newer Aug, 2014 vs Sep, 2005 Release date over 8 years later
More cores 4 vs 2 Twice as many cores; run more applications at once
Much better overclocked clock speed (Water) 4.45 GHz vs 2.4 GHz More than 85% better overclocked clock speed (Water)

Benchmarks Real world tests of Opteron 880 vs Athlon X4 860K

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 880
63,500 MB/s
Athlon X4 860K
2,290,000 MB/s

Specifications Full list of technical specs

summary

Opteron 880  vs
Athlon X4 860K 
Clock speed 2.4 GHz 3.7 GHz
Cores Dual core Quad core

features

Has a NX bit Yes Yes
Instruction set extensions
SSE4a
SSE2
F16C
MMX
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
AMD-V
3DNow!
Supplemental SSE3
AES
TBM

details

Opteron 880  vs
Athlon X4 860K 
L2 cache 2 MB 4 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 90 nm 28 nm

overclocking

Overclocked clock speed 2.56 GHz 4.37 GHz
Overclocked clock speed (Water) 2.4 GHz 4.45 GHz
Overclocked clock speed (Air) 2.56 GHz 4.37 GHz

power consumption

TDP 85W 95W
Annual home energy cost 20.48 $/year 22.89 $/year
Annual commercial energy cost 74.46 $/year 83.22 $/year
Performance per watt 0.84 pt/W 9.83 pt/W
Typical power consumption 69.06W 77.19W
AMD Opteron 880
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AMD Athlon X4 860K
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