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Differences What are the advantages of each

Front view of Intel Core i5 3470

Reasons to consider the
Intel Core i5 3470

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Much newer manufacturing process 22 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly higher clock speed 3.2 GHz vs 2 GHz More than 60% higher clock speed
Much better geekbench 3 single core score 2,983 vs 797 Around 3.8x better geekbench 3 single core score
Much better geekbench 3 Multi-Core score 9,436 vs 4,525 More than 2x better geekbench 3 Multi-Core score
Much better overclocked clock speed (Air) 3.67 GHz vs 2 GHz Around 85% better overclocked clock speed (Air)
Newer Jun, 2012 vs Apr, 2005 Release date over 7 years later
Significantly better performance per watt 4.41 pt/W vs 0.68 pt/W More than 6.5x better performance per watt
More cores 4 vs 2 Twice as many cores; run more applications at once
Much better overclocked clock speed (Water) 4.09 GHz vs 2 GHz More than 2x better overclocked clock speed (Water)
More threads 4 vs 2 Twice as many threads
Front view of AMD Opteron 870

Reasons to consider the
AMD Opteron 870

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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 more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Lower typical power consumption 77.19W vs 86.05W More than 10% lower typical power consumption
Significantly lower annual home energy cost 22.89 $/year vs 31.22 $/year More than 25% lower annual home energy cost

Benchmarks Real world tests of Core i5 3470 vs Opteron 870

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

Core i5 3470
2,470,000 MB/s
Opteron 870
54.4 MB/s

Specifications Full list of technical specs

summary

Core i5 3470  vs
Opteron 870 
Clock speed 3.2 GHz 2 GHz
Cores Quad core Dual core
Socket type
LGA 1155
940

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

details

Core i5 3470  vs
Opteron 870 
Threads 4 2
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 22 nm 90 nm
Max CPUs 1 8
Clock multiplier 32 10
Voltage range Unknown - 1.13V 1 - UnknownV
Operating temperature Unknown - 67.4°C 0 - 67°C

overclocking

Overclocked clock speed 3.67 GHz 2 GHz
Overclocked clock speed (Water) 4.09 GHz 2 GHz
Overclocked clock speed (Air) 3.67 GHz 2 GHz

power consumption

TDP 77W 95W
Annual home energy cost 31.22 $/year 22.89 $/year
Annual commercial energy cost 84.62 $/year 83.22 $/year
Performance per watt 4.41 pt/W 0.68 pt/W
Typical power consumption 86.05W 77.19W
Intel Core i5 3470
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AMD Opteron 870
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