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Differences What are the advantages of each

Front view of AMD Athlon X4 750k

Reasons to consider the
AMD Athlon X4 750k

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much better overclocked clock speed (Air) 4.46 GHz vs 0.88 GHz More than 5x better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 5.01 GHz vs 0.75 GHz Around 6.8x better overclocked clock speed (Water)
Front view of AMD Athlon X4 750

Reasons to consider the
AMD Athlon X4 750

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Much lower typical power consumption 52.81W vs 81.25W 35% lower typical power consumption
Much lower annual home energy cost 15.66 $/year vs 24.09 $/year 35% lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 87.6 $/year 35% lower annual commercial energy cost

Benchmarks Real world tests of Athlon X4 750k vs 750

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon X4 750k  vs
750 
Clock speed 3.4 GHz 3.4 GHz
Turbo clock speed 4 GHz 4 GHz
Cores Quad core Quad core
Is unlocked Yes No

features

Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
AVX
SSE3
SSE
CLMUL
AMD64
SSE4.1
FMA4
SSE4.2
CVT16
AMD-V
AES

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3

details

Athlon X4 750k  vs
750 
L2 cache 4 MB 4 MB
L2 cache per core 1 MB/core 1 MB/core
L3 cache 0 MB 0 MB
L3 cache per core 0 MB/core 0 MB/core
Manufacture process 32 nm 32 nm

overclocking

Overclocked clock speed 4.46 GHz 0.88 GHz
Overclocked clock speed (Water) 5.01 GHz 0.75 GHz
Overclocked clock speed (Air) 4.46 GHz 0.88 GHz

power consumption

TDP 100W 65W
Annual home energy cost 24.09 $/year 15.66 $/year
Annual commercial energy cost 87.6 $/year 56.94 $/year
Performance per watt 8.84 pt/W 2.69 pt/W
Typical power consumption 81.25W 52.81W
AMD Athlon X4 750k
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AMD Athlon X4 750
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