Key Differences
In short — Radeon HD 6770 outperforms GeForce GT 640M on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Radeon HD 6770 is 426 days older than GeForce GT 640M.
Advantages of NVIDIA GeForce GT 640M
- Consumes up to 70% less energy than AMD Radeon HD 6770 - 32 vs 108 Watts
- Up to 100% more VRAM memory than AMD Radeon HD 6770 - 2 vs 1 GB
Advantages of AMD Radeon HD 6770
- Performs up to 1200% better in Forza Horizon 5 than GeForce GT 640M - 13 vs 1 FPS
Forza Horizon 5
Resolution
1920 x 1080
Game Graphics
Max
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Max
GeForce GT 640M
Mobile • Mar 22nd, 2012
Radeon HD 6770
Desktop • Jan 21st, 2011
Theoretical Performance
NVIDIA GeForce GT 640M | vs | AMD Radeon HD 6770 |
|---|---|---|
Mar 22nd, 2012 | Release Date | Jan 21st, 2011 |
| GeForce 600M | Generation | Northern Islands |
| Not Available | MSRP | $129 |
| None | Outputs | 2x DVI, 1x HDMI, 2x mini-DisplayPort |
| None | Power Connectors | 1x 6-pin |
Mobile | Segment | Desktop |
2 GB | Memory | 1 GB |
| DDR3 | Type | GDDR5 |
| 128-bit | Bus | 128-bit |
| 28.8 GB/s | Bandwidth | 76.8 GB/s |
| 625 MHz | Base Clock Speed | 850 MHz |
| Not Available | Boost Clock Speed | Not Available |
| 900 MHz | Memory Clock Speed | 1200 MHz |
