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| AMD Phenom II X4 955 vs Athlon II X4 640 |
Released November, 2009
AMD Phenom II X4 955
- 3.2 GHz
- Quad core
- Unlocked
Reasons to buy the AMD Phenom II X4 955
![]() | Is unlocked Yes |
VS
Cast your vote Do you agree or disagree with CPUBoss?
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Differences What are the advantages of each
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Is unlocked | Yes | vs | No | Somewhat common; An unlocked multiplier allows for easier overclocking | |||
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CPUBoss is not aware of any important advantages of the Athlon II X4 640 vs the Phenom II X4 955. | |||||||
Benchmarks Real world tests of Phenom II X4 955 vs Athlon II X4 640
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Phenom II X4 955
5,898
Athlon II X4 640
5,434
GeekBench 3 (Single core) Data courtesy Primate Labs
Phenom II X4 955
1,679
Athlon II X4 640
1,559
GeekBench 3 (AES single core) Data courtesy Primate Labs
Phenom II X4 955
129,850 MB/s
Athlon II X4 640
121,100 MB/s
GeekBench (32-bit) Data courtesy Primate Labs
Phenom II X4 955
5,649
Athlon II X4 640
5,198
GeekBench (64-bit) Data courtesy Primate Labs
Phenom II X4 955
5,696
Athlon II X4 640
5,313
GeekBench
Phenom II X4 955
7,600
Athlon II X4 640
6,861
PassMark Data courtesy Passmark
Phenom II X4 955
3,960
Athlon II X4 640
3,327
PassMark (Single Core)
Phenom II X4 955
1,113
Athlon II X4 640
1,026
Reviews Word on the street
Phenom II X4 955 | vs | Athlon II X4 640 | ||
![]() | 8.7 | 9.1 |
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Specifications Full list of technical specs
summary | Phenom II X4 955 | vs | Athlon II X4 640 |
---|---|---|---|
Clock speed | 3.2 GHz | 3 GHz | |
Cores | Quad core | Quad core | |
Socket type | |||
AM3 | |||
Is unlocked | Yes | No | |
features | |||
Has a NX bit | Yes | Yes | |
Has virtualization support | Yes | Yes | |
Instruction set extensions | |||
SSE4a | |||
SSE2 | |||
MMX | |||
SSE3 | |||
SSE | |||
3DNow! | |||
Supports dynamic frequency scaling | Yes | Yes | |
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 |
details | Phenom II X4 955 | vs | Athlon II X4 640 |
---|---|---|---|
Architecture | x86-64 | x86-64 | |
Threads | 4 | 4 | |
L2 cache | 2 MB | 2 MB | |
L2 cache per core | 0.5 MB/core | 0.5 MB/core | |
L3 cache | 6 MB | 0 MB | |
L3 cache per core | 1.5 MB/core | 0 MB/core | |
Manufacture process | 45 nm | 45 nm | |
Max CPUs | 1 | 1 | |
Voltage range | 0.88 - 1.5V | 1.05 - 1.4V | |
Operating temperature | Unknown - 62°C | Unknown - 71°C | |
overclocking | |||
Overclock popularity | 259 | 36 | |
Overclock review score | 4 | 4.5 | |
Overclocked clock speed | 3.99 GHz | 3.57 GHz | |
Overclocked clock speed (Water) | 4.14 GHz | 3.89 GHz | |
PassMark (Overclocked) | 3,674.7 | 2,020.8 | |
Overclocked clock speed (Air) | 3.99 GHz | 3.57 GHz | |
power consumption | |||
TDP | 125W | 95W | |
Annual home energy cost | 30.11 $/year | 22.89 $/year | |
Annual commercial energy cost | 109.5 $/year | 83.22 $/year | |
Performance per watt | 1.28 pt/W | 1.54 pt/W | |
Typical power consumption | 101.56W | 77.19W | |
bus | |||
Clock speed | 2,000 MHz | 2,000 MHz |
AMD Phenom II X4 955 ![]() | AMD Athlon II X4 640 ![]() |
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