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Intel Core i5 2500K

Front view of Intel Core i5 2500K
Front view of AMD Phenom X4 9450e

AMD Phenom X4 9450e

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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 2.1 GHz More than 55% higher clock speed
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better overclocked clock speed (Air) 4.98 GHz vs 2.51 GHz Around 2x better overclocked clock speed (Air)
Much better PassMark (Single core) score 1,863 vs 759 Around 2.5x better PassMark (Single core) score
Much better overclocked clock speed (Water) 4.88 GHz vs 2.1 GHz More than 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 Phenom X4 9450e

Reasons to consider the
AMD Phenom X4 9450e

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Much 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 lower typical power consumption 52.81W vs 112.55W 2.1x lower typical power consumption
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower annual home energy cost 15.66 $/year vs 41.29 $/year 2.6x lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 110.03 $/year Around 50% lower annual commercial energy cost

Benchmarks Real world tests of Core i5 2500K vs Phenom X4 9450e

PassMark Data courtesy Passmark

Core i5 2500K
6,383
Phenom X4 9450e
2,621

PassMark (Single Core)

Core i5 2500K
1,863
Phenom X4 9450e
759

Specifications Full list of technical specs

summary

 Core i5 2500K  vs
Phenom X4 9450e 
Clock speed 3.3 GHz 2.1 GHz
Cores Quad core Quad core
Socket type
LGA 1155
AM2+
Is unlocked Yes No

features
Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 95W 65W
Annual home energy cost 41.29 $/year 15.66 $/year
Annual commercial energy cost 110.03 $/year 56.94 $/year
Performance per watt 6.79 pt/W 1.48 pt/W
Typical power consumption 112.55W 52.81W

details

 Core i5 2500K  vs
Phenom X4 9450e 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 6 MB 2 MB
L3 cache per core 1.5 MB/core 0.5 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 1 1
Operating temperature 5 - 72.6°C Unknown - 70°C

overclocking
Overclocked clock speed 4.98 GHz 2.51 GHz
Overclocked clock speed (Water) 4.88 GHz 2.1 GHz
Overclocked clock speed (Air) 4.98 GHz 2.51 GHz

integrated graphics
GPU GPU None
Label Intel® HD Graphics 3000 N/A
Latest DirectX 10.1 N/A
Number of displays supported 2 N/A
GPU clock speed 850 MHz N/A
Turbo clock speed 1,100 MHz N/A
3DMark06 5,275 N/A
Intel Core i5 2500K
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AMD Phenom X4 9450e
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