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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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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Much lower typical power consumption 77.19W vs 159.66W 2.1x lower typical power consumption
Much lower annual home energy cost 22.89 $/year vs 56.1 $/year 2.5x lower annual home energy cost
Much lower annual commercial energy cost 83.22 $/year vs 159.62 $/year Around 50% lower annual commercial energy cost
Higher Maximum operating temperature 67 °C vs 61 °C Around 10% higher Maximum operating temperature
Front view of AMD FX 8350

Reasons to consider the
AMD FX 8350

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Much more l2 cache 8 MB vs 2 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 4 GHz vs 2.4 GHz More than 65% higher clock speed
Much better geekbench 3 Multi-Core score 11,483 vs 1,379 More than 8.2x better geekbench 3 Multi-Core score
More cores 8 vs 2 6 more cores; run more applications at once
Much better overclocked clock speed (Air) 4.69 GHz vs 2.56 GHz Around 85% better overclocked clock speed (Air)
Significantly better geekbench 3 single core score 2,193 vs 922 Around 2.5x better geekbench 3 single core score
Newer Oct, 2012 vs Sep, 2005 Release date over 7 years later
Much better performance per watt 5.72 pt/W vs 0.75 pt/W More than 7.5x better performance per watt
Much better overclocked clock speed (Water) 8.79 GHz vs 2.4 GHz Around 3.8x better overclocked clock speed (Water)
More threads 8 vs 2 6 more threads

Benchmarks Real world tests of Opteron 880 vs FX 8350

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Opteron 880
1,379
FX 8350
11,483

GeekBench 3 (Single core) Data courtesy Primate Labs

FX 8350
2,193

GeekBench 3 (AES single core) Data courtesy Primate Labs

Opteron 880
63,500 MB/s
FX 8350
2,470,000 MB/s

Specifications Full list of technical specs

summary

Opteron 880  vs
FX 8350 
Clock speed 2.4 GHz 4 GHz
Cores Dual core Octa core
Socket type
940
AM3+

features

Has a NX bit Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
AVX
SSE3
SSE
ABM
BMI1
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
3DNow!
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

details

Opteron 880  vs
FX 8350 
Threads 2 8
L2 cache 2 MB 8 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 90 nm 32 nm
Max CPUs 8 1
Clock multiplier 12 21
Voltage range 1 - UnknownV 0.81 - 1.45V
Operating temperature 0 - 67°C Unknown - 61°C

overclocking

Overclocked clock speed 2.56 GHz 4.69 GHz
Overclocked clock speed (Water) 2.4 GHz 8.79 GHz
Overclocked clock speed (Air) 2.56 GHz 4.69 GHz

power consumption

TDP 95W 125W
Annual home energy cost 22.89 $/year 56.1 $/year
Annual commercial energy cost 83.22 $/year 159.62 $/year
Performance per watt 0.75 pt/W 5.72 pt/W
Typical power consumption 77.19W 159.66W
AMD Opteron 880
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AMD FX 8350
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