Winner
AMD Phenom II X4 940
CPUBoss recommends the AMD Phenom II X4 940 based on its performance.
See full details AMD Phenom II X620 vs X4 940 |
Released May, 2010
AMD Phenom II X620
- 3.1 GHz
- Dual core
- Unlocked
4.4 Out of 10
Reasons to buy the AMD Phenom II X620
 | Much lower typical power consumption 36.56W | | Much more l2 cache per core 1 MB/core |
| | Much lower annual home energy cost 10.84 $/year | | Much lower annual commercial energy cost 39.42 $/year |
VS
Released January, 2009
AMD Phenom II X4 940
- 3 GHz
- Quad core
- Unlocked
4.5 Out of 10
Reasons to buy the X4 940
| | More cores 4 | | Better overclocked clock speed (Air) 3.72 GHz |
| | Better PassMark score 3,614 | | More threads 4 |
CPUBoss Review Our evaluation of X620 vs 940 among all CPUs
Performance | |
Benchmark performance using all cores | |
| PCMark 8 Home 3.0 Accelerated, PassMark and 1 more | |
Single-core Performance | |
Individual core benchmark performance | |
| PassMark (Single Core), Geekbench 3 Single Core and 1 more | |
Integrated Graphics | |
Integrated GPU performance for graphics | |
| Sky Diver and Cloud Gate | |
Integrated Graphics (OpenCL) | |
Integrated GPU performance for parallel computing | |
| CompuBench 1.5 Bitcoin mining and 4 more | |
Performance per Watt | |
How efficiently does the processor use electricity? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
Value | |
Are you paying a premium for performance? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
| 4.5 | CPUBoss Score |
Combination of all six facets | |
 | Winner |
Cast your vote Do you agree or disagree with CPUBoss?
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| |  | AMD Phenom II X4 940CPUBoss Winner |
Differences What are the advantages of each
| |||||||
| Much lower typical power consumption | 36.56W | vs | 101.56W | 2.8x lower typical power consumption | |||
|---|---|---|---|---|---|---|---|
| Much more l2 cache per core | 1 MB/core | vs | 0.5 MB/core | 2x more l2 cache per core | |||
| Much lower annual home energy cost | 10.84 $/year | vs | 30.11 $/year | 2.8x lower annual home energy cost | |||
| Much lower annual commercial energy cost | 39.42 $/year | vs | 109.5 $/year | 2.8x lower annual commercial energy cost | |||
| Better performance per watt | 2.46 pt/W | vs | 1.19 pt/W | More than 2x better performance per watt | |||
| Slightly better PassMark (Single core) score | 1,174 | vs | 1,026 | Around 15% better PassMark (Single core) score | |||
| Newer | May, 2010 | vs | Jan, 2009 | Release date over 1 years later | |||
| |||||||
| More cores | 4 | vs | 2 | Twice as many cores; run more applications at once | |||
| Better overclocked clock speed (Air) | 3.72 GHz | vs | 3.1 GHz | More than 20% better overclocked clock speed (Air) | |||
| Better PassMark score | 3,614 | vs | 2,189 | More than 65% better PassMark score | |||
| More threads | 4 | vs | 2 | Twice as many threads | |||
| Better overclocked clock speed (Water) | 3.83 GHz | vs | 3.1 GHz | Around 25% better overclocked clock speed (Water) | |||
Report a correction
Benchmarks Real world tests of Phenom II X620 vs X4 940
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Phenom II X620 | vs | X4 940 |
|---|---|---|---|
| Clock speed | 3.1 GHz | 3 GHz | |
| Cores | Dual core | Quad core | |
| Socket type | |||
| S1 | |||
| AM2+ | |||
| Is unlocked | Yes | Yes | |
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 | 45W | 125W | |
| Annual home energy cost | 10.84 $/year | 30.11 $/year | |
| Annual commercial energy cost | 39.42 $/year | 109.5 $/year | |
| Performance per watt | 2.46 pt/W | 1.19 pt/W | |
| Typical power consumption | 36.56W | 101.56W | |
details | Phenom II X620 | vs | X4 940 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 2 | 4 | |
| L2 cache | 2 MB | 2 MB | |
| L2 cache per core | 1 MB/core | 0.5 MB/core | |
| Manufacture process | 45 nm | 45 nm | |
| Max CPUs | 1 | 1 | |
overclocking | |||
| Overclocked clock speed | 3.1 GHz | 3.72 GHz | |
| Overclocked clock speed (Water) | 3.1 GHz | 3.83 GHz | |
| Overclocked clock speed (Air) | 3.1 GHz | 3.72 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 | |
bus | |||
| Clock speed | 1,800 MHz | 1,800 MHz | |
 AMD Phenom II X620  Report a correction |  AMD Phenom II X4 940 Report a correction |
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