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Differences What are the advantages of each

Front view of AMD Athlon II X4 651K

Reasons to consider the
AMD Athlon II X4 651K

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CPUBoss is not aware of any important advantages of the 651K vs the 651.

Front view of AMD Athlon II X4 651

Reasons to consider the
AMD Athlon II X4 651

Report a correction

CPUBoss is not aware of any important advantages of the 651 vs the 651K.

Features Key features of the Athlon II X4 651K  vs 651 

clock speed

L2 cache

overclocked clock speed (air)

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Athlon II X4 651K  vs
651 
Clock speed 3 GHz 3 GHz
Turbo clock speed None None
Cores Quad core Quad core
Socket type
FM1

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
AMD64
AMD-V
3DNow!
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 100W 100W
Annual home energy cost 24.09 $/year 24.09 $/year
Annual commercial energy cost 87.6 $/year 87.6 $/year
Typical power consumption 81.25W 81.25W

memory controller

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

details

Athlon II X4 651K  vs
651 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 4 MB 4 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 32 nm 32 nm
Transistor count 1,178,000,000 1,178,000,000
Max CPUs 1 1
Die size 228 mm² 228 mm²
Voltage range 0.91 - 1.41V 0.91 - 1.41V

overclocking

Overclocked clock speed 3.43 GHz 3.41 GHz
Overclocked clock speed (Water) 3.49 GHz 3 GHz
Overclocked clock speed (Air) 3.43 GHz 3.41 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
AMD Athlon II X4 651K
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AMD Athlon II X4 651
Report a correction

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