Key Differences
In short — Radeon HD 6850 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 6850 is 518 days older than GeForce GT 640M.
Advantages of NVIDIA GeForce GT 640M
- Consumes up to 75% less energy than AMD Radeon HD 6850 - 32 vs 127 Watts
- Up to 100% more VRAM memory than AMD Radeon HD 6850 - 2 vs 1 GB
Advantages of AMD Radeon HD 6850
- Performs up to 100% better in Sons Of The Forest than GeForce GT 640M - 44 vs 22 FPS
Sons Of The Forest
Resolution
1920 x 1080
Game Graphics
Ultra
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
GeForce GT 640M
Mobile • Mar 22nd, 2012
Radeon HD 6850
Desktop • Oct 21st, 2010
Theoretical Performance
Radeon HD 6850
Desktop • Oct 21st, 2010
Pixel Fillrate
24.8 GPixel/s
100%
Texel Fillrate
37.2 GTexel/s
100%
NVIDIA GeForce GT 640M | vs | AMD Radeon HD 6850 |
|---|---|---|
Mar 22nd, 2012 | Release Date | Oct 21st, 2010 |
| GeForce 600M | Generation | Northern Islands |
| Not Available | MSRP | $179 |
| 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 | 256-bit |
| 28.8 GB/s | Bandwidth | 128 GB/s |
| 625 MHz | Base Clock Speed | 775 MHz |
| Not Available | Boost Clock Speed | Not Available |
| 900 MHz | Memory Clock Speed | 1000 MHz |
