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Intel Core i5 2500K

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Front view of Intel Core i5 2500K

Differences What are the advantages of each

Front view of Intel Core i5 2500K

Reasons to consider the
Intel Core i5 2500K

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Much higher clock speed 3.3 GHz vs 1 GHz More than 3.2x higher clock speed
Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better overclocked clock speed (Air) 4.98 GHz vs 1.86 GHz Around 2.8x better overclocked clock speed (Air)
Much better PassMark (Single core) score 1,863 vs 479 Around 4x better PassMark (Single core) score
Significantly better PassMark score 6,383 vs 299 More than 21.2x better PassMark score
More cores 4 vs 1 3 more cores; run more applications at once
Better performance per watt 6.79 pt/W vs 4.12 pt/W Around 65% better performance per watt
Much better overclocked clock speed (Water) 4.88 GHz vs 1.67 GHz Around 3x better overclocked clock speed (Water)
More threads 4 vs 1 3 more threads
Front view of AMD Athlon 64 2000+

Reasons to consider the
AMD Athlon 64 2000+

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Much lower typical power consumption 6.5W vs 112.55W 17.3x lower typical power consumption
Much lower annual home energy cost 1.93 $/year vs 41.29 $/year 21.4x lower annual home energy cost
Much lower annual commercial energy cost 7.01 $/year vs 110.03 $/year 15.7x lower annual commercial energy cost
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Higher Maximum operating temperature 85 °C vs 72.6 °C More than 15% higher Maximum operating temperature

Benchmarks Real world tests of Core i5 2500K vs Athlon 64 2000+

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 2500K  vs
Athlon 64 2000+ 
Clock speed 3.3 GHz 1 GHz
Cores Quad core Single core
Socket type
LGA 1155
462
AM2

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES

details

Core i5 2500K  vs
Athlon 64 2000+ 
Threads 4 1
L2 cache 1 MB 0.5 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 1 1
Operating temperature 5 - 72.6°C Unknown - 85°C

overclocking

Overclocked clock speed 4.98 GHz 1.86 GHz
Overclocked clock speed (Water) 4.88 GHz 1.67 GHz
PassMark (Overclocked) 5,433.6 486.6
Overclocked clock speed (Air) 4.98 GHz 1.86 GHz

power consumption

TDP 95W 8W
Annual home energy cost 41.29 $/year 1.93 $/year
Annual commercial energy cost 110.03 $/year 7.01 $/year
Performance per watt 6.79 pt/W 4.12 pt/W
Typical power consumption 112.55W 6.5W
Intel Core i5 2500K
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AMD Athlon 64 2000+
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