Key Differences
In short — Radeon HD 7790 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 7790 is 365 days newer than GeForce GT 640M.
Advantages of NVIDIA GeForce GT 640M
- Consumes up to 62% less energy than AMD Radeon HD 7790 - 32 vs 85 Watts
- Up to 100% more VRAM memory than AMD Radeon HD 7790 - 2 vs 1 GB
Advantages of AMD Radeon HD 7790
- Performs up to 7% better in Ready or Not than GeForce GT 640M - 91 vs 85 FPS
Ready or Not
Resolution
1920 x 1080
Game Graphics
Epic
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Epic
Mobile • Mar 22nd, 2012
Desktop • Mar 22nd, 2013
Theoretical Performance
NVIDIA GeForce GT 640M | vs | AMD Radeon HD 7790 |
---|---|---|
Mar 22nd, 2012 | Release Date | Mar 22nd, 2013 |
GeForce 600M | Generation | Southern Islands |
Not Available | MSRP | $149 |
None | Outputs | 1x 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 | 96 GB/s |
625 MHz | Base Clock Speed | 1000 MHz |
Not Available | Boost Clock Speed | Not Available |
900 MHz | Memory Clock Speed | 1500 MHz |