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Differences What are the advantages of each

Front view of AMD Athlon 64 X2 3400e

Reasons to consider the
AMD Athlon 64 X2 3400e

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Much lower typical power consumption 17.88W vs 52.81W 3x lower typical power consumption
Much lower annual home energy cost 5.3 $/year vs 15.66 $/year 3x lower annual home energy cost
Much lower annual commercial energy cost 19.27 $/year vs 56.94 $/year 3x lower annual commercial energy cost
Front view of AMD A6 5400K

Reasons to consider the
AMD A6 5400K

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Much higher clock speed 3.6 GHz vs 1.8 GHz 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
Much better overclocked clock speed (Air) 4.46 GHz vs 2.7 GHz More than 65% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 5.03 GHz vs 1.8 GHz More than 2.8x better overclocked clock speed (Water)

Features Key features of the Athlon 64 X2 3400e  vs A6 5400K 

clock speed

A6 5400K
3.6 GHz

L2 cache

overclocked clock speed (air)

A6 5400K
4.46 GHz

overclocked clock speed (water)

A6 5400K
5.03 GHz

Specifications Full list of technical specs

summary

Athlon 64 X2 3400e  vs
A6 5400K 
Clock speed 1.8 GHz 3.6 GHz
Cores Dual core Dual core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
SSE3
SSE
CLMUL
AMD64
SSE4.1
FMA4
SSE4.2
CVT16
AMD-V
3DNow!
AES
Supports dynamic frequency scaling Yes Yes

details

Athlon 64 X2 3400e  vs
A6 5400K 
Threads 2 2
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 65 nm 32 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.7 GHz 4.46 GHz
Overclocked clock speed (Water) 1.8 GHz 5.03 GHz
Overclocked clock speed (Air) 2.7 GHz 4.46 GHz

power consumption

TDP 22W 65W
Annual home energy cost 5.3 $/year 15.66 $/year
Annual commercial energy cost 19.27 $/year 56.94 $/year
Typical power consumption 17.88W 52.81W
AMD Athlon 64 X2 3400e
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AMD A6 5400K
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