Key Differences
In short — Radeon HD 6770 outperforms Radeon HD 7990 on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Radeon HD 6770 is 824 days older than Radeon HD 7990.
Advantages of AMD Radeon HD 6770
- Performs up to 22% better in The Last of Us Part I than Radeon HD 7990 - 33 vs 27 FPS
- Consumes up to 71% less energy than AMD Radeon HD 7990 - 108 vs 375 Watts
Advantages of AMD Radeon HD 7990
- Up to 200% more VRAM memory than AMD Radeon HD 6770 - 3 vs 1 GB
The Last of Us Part I
Resolution
1920 x 1080
Game Graphics
Ultra
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Radeon HD 6770
Desktop • Jan 21st, 2011
Radeon HD 7990
Desktop • Apr 24th, 2013
Theoretical Performance
AMD Radeon HD 6770 | vs | AMD Radeon HD 7990 |
|---|---|---|
| Jan 21st, 2011 | Release Date | Apr 24th, 2013 |
| Northern Islands | Generation | Southern Islands |
$129 | MSRP | $999 |
| 2x DVI, 1x HDMI, 2x mini-DisplayPort | Outputs | 1x DVI, 4x mini-DisplayPort |
| 1x 6-pin | Power Connectors | 2x 8-pin |
Desktop | Segment | Desktop |
| 1 GB | Memory | 3 GB |
| GDDR5 | Type | GDDR5 |
| 128-bit | Bus | 384-bit |
| 76.8 GB/s | Bandwidth | 288 GB/s |
| 850 MHz | Base Clock Speed | 950 MHz |
| Not Available | Boost Clock Speed | 1000 MHz |
| 1200 MHz | Memory Clock Speed | 1500 MHz |
