Key Differences
In short — Radeon R9 280X 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 R9 280X is 565 days newer than GeForce GT 640M.
Advantages of NVIDIA GeForce GT 640M
- Consumes up to 87% less energy than AMD Radeon R9 280X - 32 vs 250 Watts
Advantages of AMD Radeon R9 280X
- Performs up to 20% better in The Callisto Protocol than GeForce GT 640M - 61 vs 51 FPS
- Up to 50% more VRAM memory than NVIDIA GeForce GT 640M - 3 vs 2 GB
The Callisto Protocol
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 R9 280X
Desktop • Oct 8th, 2013
Theoretical Performance
NVIDIA GeForce GT 640M | vs | AMD Radeon R9 280X |
|---|---|---|
| Mar 22nd, 2012 | Release Date | Oct 8th, 2013 |
| GeForce 600M | Generation | Volcanic Islands |
| Not Available | MSRP | $299 |
| None | Outputs | 2x DVI, 1x HDMI, 1x 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 | 288 GB/s |
| 625 MHz | Base Clock Speed | 850 MHz |
| Not Available | Boost Clock Speed | 1000 MHz |
| 900 MHz | Memory Clock Speed | 1500 MHz |
