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| AMD Phenom II X4 940 vs Athlon II X4 640 |
Released January, 2009
AMD Phenom II X4 940
- 3 GHz
- Quad core
- Unlocked
Reasons to buy the AMD Phenom II X4 940
![]() | 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 940. | |||||||
Benchmarks Real world tests of Phenom II X4 940 vs Athlon II X4 640
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Phenom II X4 940
5,456
Athlon II X4 640
5,434
GeekBench 3 (Single core) Data courtesy Primate Labs
Phenom II X4 940
1,543
Athlon II X4 640
1,559
GeekBench 3 (AES single core) Data courtesy Primate Labs
Phenom II X4 940
121,350 MB/s
Athlon II X4 640
121,100 MB/s
GeekBench (32-bit) Data courtesy Primate Labs
Phenom II X4 940
5,246
Athlon II X4 640
5,198
GeekBench (64-bit) Data courtesy Primate Labs
Phenom II X4 940
5,795
Athlon II X4 640
5,313
GeekBench
Phenom II X4 940
6,378
Athlon II X4 640
6,861
PassMark Data courtesy Passmark
Phenom II X4 940
3,614
Athlon II X4 640
3,327
PassMark (Single Core)
Phenom II X4 940
1,026
Athlon II X4 640
1,026
Specifications Full list of technical specs
summary | Phenom II X4 940 | vs | Athlon II X4 640 |
---|---|---|---|
Clock speed | 3 GHz | 3 GHz | |
Cores | Quad core | Quad core | |
Socket type | |||
AM2+ | |||
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 | |
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 | 1.19 pt/W | 1.54 pt/W | |
Typical power consumption | 101.56W | 77.19W | |
bus | |||
Clock speed | 1,800 MHz | 2,000 MHz |
details | Phenom II X4 940 | 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 | 44 | 36 | |
Overclocked clock speed | 3.72 GHz | 3.57 GHz | |
Overclocked clock speed (Water) | 3.83 GHz | 3.89 GHz | |
Overclocked clock speed (Air) | 3.72 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 Phenom II X4 940 ![]() | AMD Athlon II X4 640 ![]() |
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