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Differences What are the advantages of each

Front view of Intel Core i5 3570K

Reasons to consider the
Intel Core i5 3570K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much higher clock speed 3.4 GHz vs 1.7 GHz 2x higher clock speed
Much newer manufacturing process 22 nm vs 45 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) 4.59 GHz vs 1.7 GHz Around 2.8x better overclocked clock speed (Air)
More cores 4 vs 2 Twice as many cores; run more applications at once
Much better overclocked clock speed (Water) 4.71 GHz vs 1.7 GHz More than 2.8x better overclocked clock speed (Water)
More threads 4 vs 2 Twice as many threads
Newer Apr, 2012 vs May, 2010 Release date over 1 years later
Front view of AMD Turion II Neo K665

Reasons to consider the
AMD Turion II Neo K665

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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 lower typical power consumption 12.19W vs 107.5W 8.8x 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 3.61 $/year vs 38.81 $/year 10.7x lower annual home energy cost
Much lower annual commercial energy cost 13.14 $/year vs 106 $/year 8.1x lower annual commercial energy cost

Features Key features of the Core i5 3570K  vs Turion II Neo K665 

clock speed

L2 cache

overclocked clock speed (air)

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Core i5 3570K  vs
Turion II Neo K665 
Clock speed 3.4 GHz 1.7 GHz
Cores Quad core Dual core
Socket type
LGA 1155
S1
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 77W 15W
Annual home energy cost 38.81 $/year 3.61 $/year
Annual commercial energy cost 106 $/year 13.14 $/year
Typical power consumption 107.5W 12.19W

details

Core i5 3570K  vs
Turion II Neo K665 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 22 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 4.59 GHz 1.7 GHz
Overclocked clock speed (Water) 4.71 GHz 1.7 GHz
Overclocked clock speed (Air) 4.59 GHz 1.7 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 4000 N/A
Latest DirectX 10.x N/A
Number of displays supported 3 N/A
GPU clock speed 650 MHz N/A
Turbo clock speed 1,150 MHz N/A
3DMark06 5,339.9 N/A
Intel Core i5 3570K
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AMD Turion II Neo K665
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