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Differences What are the advantages of each

Front view of AMD Athlon II X4 641

Reasons to consider the
AMD Athlon II X4 641

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CPUBoss is not aware of any important advantages of the 641 vs the 640.

Front view of AMD Athlon II X4 640

Reasons to consider the
AMD Athlon II X4 640

Report a correction

CPUBoss is not aware of any important advantages of the 640 vs the 641.

Benchmarks Real world tests of Athlon II X4 641 vs 640

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Athlon II X4 641
116,900 MB/s
Athlon II X4 640
121,100 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

3D Mark 11 (Physics)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon II X4 641  vs
640 
Clock speed 2.8 GHz 3 GHz
Cores Quad core Quad core
Socket type
FM1
AM3
Is unlocked No No

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 95W
Annual home energy cost 24.09 $/year 22.89 $/year
Annual commercial energy cost 87.6 $/year 83.22 $/year
Performance per watt 1.4 pt/W 1.54 pt/W
Typical power consumption 81.25W 77.19W

details

Athlon II X4 641  vs
640 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 4 MB 2 MB
L2 cache per core 1 MB/core 0.5 MB/core
L3 cache 0 MB 0 MB
L3 cache per core 0 MB/core 0 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 1
Voltage range 0.45 - 1.41V 1.05 - 1.4V
Operating temperature Unknown - 70.1°C Unknown - 71°C

overclocking

Overclocked clock speed 3.37 GHz 3.57 GHz
Overclocked clock speed (Water) 2.8 GHz 3.89 GHz
Overclocked clock speed (Air) 3.37 GHz 3.57 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 641
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AMD Athlon II X4 640
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