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Differences What are the advantages of each

Front view of Intel Core i7 2600

Reasons to consider the
Intel Core i7 2600

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Much newer manufacturing process 32 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 3.4 GHz vs 1.8 GHz Around 90% higher clock speed
More cores 4 vs 1 3 more cores; run more applications at once
More threads 8 vs 1 7 more threads
Much better PassMark score 8,219 vs 433 Around 19x better PassMark score
Much better PassMark (Single core) score 1,921 vs 663 Around 3x better PassMark (Single core) score
Much better overclocked clock speed (Air) 3.93 GHz vs 2.47 GHz Around 60% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.92 GHz vs 1.8 GHz Around 2.2x better overclocked clock speed (Water)
Higher Maximum operating temperature 72.6 °C vs 70 °C Around 5% higher Maximum operating temperature
Front view of AMD Athlon 64 3100+

Reasons to consider the
AMD Athlon 64 3100+

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Much lower typical power consumption 20.31W vs 114.5W 5.6x lower typical power consumption
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Much lower annual home energy cost 6.02 $/year vs 41.87 $/year 7x lower annual home energy cost
Much lower annual commercial energy cost 21.9 $/year vs 112.13 $/year 5.1x lower annual commercial energy cost

Benchmarks Real world tests of Core i7 2600 vs Athlon 64 3100+

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 2600  vs
Athlon 64 3100+ 
Clock speed 3.4 GHz 1.8 GHz
Cores Quad core Single core
Socket type
LGA 1155
754
462
AM2

features

Has a NX bit Yes Yes
Has virtualization support 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 i7 2600  vs
Athlon 64 3100+ 
Threads 8 1
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 32 nm 130 nm
Max CPUs 1 1
Operating temperature Unknown - 72.6°C Unknown - 70°C

overclocking

Overclocked clock speed 3.93 GHz 2.47 GHz
Overclocked clock speed (Water) 3.92 GHz 1.8 GHz
Overclocked clock speed (Air) 3.93 GHz 2.47 GHz

power consumption

TDP 95W 25W
Annual home energy cost 41.87 $/year 6.02 $/year
Annual commercial energy cost 112.13 $/year 21.9 $/year
Performance per watt 6.48 pt/W 1.84 pt/W
Typical power consumption 114.5W 20.31W
Intel Core i7 2600
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AMD Athlon 64 3100+
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