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Differences What are the advantages of each

Front view of AMD Athlon X4 860K

Reasons to consider the
AMD Athlon X4 860K

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Much newer manufacturing process 28 nm vs 180 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 3.7 GHz vs 0.85 GHz More than 4.2x higher clock speed
Much more l2 cache 4 MB vs 0.5 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better overclocked clock speed (Air) 4.37 GHz vs 0.89 GHz Around 5x better overclocked clock speed (Air)
More cores 4 vs 1 3 more cores; run more applications at once
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Much better overclocked clock speed (Water) 4.45 GHz vs 0.85 GHz Around 5.2x better overclocked clock speed (Water)
Front view of AMD Athlon 850

Reasons to consider the
AMD Athlon 850

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CPUBoss is not aware of any important advantages of the Athlon 850 vs the Athlon X4 860K.

Features Key features of the Athlon X4 860K  vs 850 

clock speed

Athlon X4 860K
3.7 GHz
Athlon 850
0.85 GHz

L2 cache

overclocked clock speed (air)

Athlon X4 860K
4.37 GHz
Athlon 850
0.89 GHz

overclocked clock speed (water)

Athlon X4 860K
4.45 GHz
Athlon 850
0.85 GHz

Specifications Full list of technical specs

summary

Athlon X4 860K  vs
850 
Clock speed 3.7 GHz 0.85 GHz
Cores Quad core Single core

features

Has a NX bit Yes No
Instruction set extensions
SSE4a
SSE2
F16C
MMX
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
AMD-V
3DNow!
Supplemental SSE3
AES
TBM

details

Athlon X4 860K  vs
850 
L2 cache 4 MB 0.5 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 28 nm 180 nm

overclocking

Overclocked clock speed 4.37 GHz 0.89 GHz
Overclocked clock speed (Water) 4.45 GHz 0.85 GHz
Overclocked clock speed (Air) 4.37 GHz 0.89 GHz

power consumption

Typical power consumption 77.19W N/A
AMD Athlon X4 860K
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AMD Athlon 850
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