Key Differences
In short — Radeon HD 7970 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 7970 is 91 days older than GeForce GT 640M.
Advantages of NVIDIA GeForce GT 640M
- Consumes up to 87% less energy than AMD Radeon HD 7970 - 32 vs 250 Watts
Advantages of AMD Radeon HD 7970
- Performs up to 33% better in Halo Infinite than GeForce GT 640M - 40 vs 30 FPS
- Up to 50% more VRAM memory than NVIDIA GeForce GT 640M - 3 vs 2 GB
Halo Infinite
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 7970
Desktop • Dec 22nd, 2011
Theoretical Performance
Radeon HD 7970
Desktop • Dec 22nd, 2011
Pixel Fillrate
29.6 GPixel/s
100%
Texel Fillrate
118.4 GTexel/s
100%
NVIDIA GeForce GT 640M | vs | AMD Radeon HD 7970 |
|---|---|---|
Mar 22nd, 2012 | Release Date | Dec 22nd, 2011 |
| GeForce 600M | Generation | Southern Islands |
| Not Available | MSRP | $549 |
| None | Outputs | 1x DVI, 1x HDMI, 2x mini-DisplayPort |
| None | Power Connectors | 1x 6-pin + 1x 8-pin |
Mobile | Segment | Desktop |
| 2 GB | Memory | 3 GB |
| DDR3 | Type | GDDR5 |
| 128-bit | Bus | 384-bit |
| 28.8 GB/s | Bandwidth | 264 GB/s |
| 625 MHz | Base Clock Speed | 925 MHz |
| Not Available | Boost Clock Speed | Not Available |
| 900 MHz | Memory Clock Speed | 1375 MHz |
