Key Differences
In short — Radeon HD 6770 outperforms GeForce GT 645M on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Radeon HD 6770 is 619 days older than GeForce GT 645M.
Advantages of NVIDIA GeForce GT 645M
- 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 33% better in DOOM Eternal than GeForce GT 645M - 173 vs 130 FPS
DOOM Eternal
Resolution
1920 x 1080
Game Graphics
Nightmare
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Nightmare
GeForce GT 645M
Mobile • Oct 1st, 2012
Radeon HD 6770
Desktop • Jan 21st, 2011
Theoretical Performance
GeForce GT 645M
Mobile • Oct 1st, 2012
Pixel Fillrate
5.672 GPixel/s
41%
Texel Fillrate
22.69 GTexel/s
66%
NVIDIA GeForce GT 645M | vs | AMD Radeon HD 6770 |
|---|---|---|
Oct 1st, 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 |
| 709 MHz | Base Clock Speed | 850 MHz |
| Not Available | Boost Clock Speed | Not Available |
| 900 MHz | Memory Clock Speed | 1200 MHz |
