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 7990
- Up to 200% more VRAM memory than AMD Radeon HD 6770 - 3 vs 1 GB
Advantages of AMD Radeon HD 6770
- Performs up to 20% better in No Man's Sky than Radeon HD 7990 - 91 vs 76 FPS
- Consumes up to 71% less energy than AMD Radeon HD 7990 - 108 vs 375 Watts
No Man's Sky
Resolution
1920 x 1080
Game Graphics
Ultra
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Radeon HD 7990
Desktop • Apr 24th, 2013
Radeon HD 6770
Desktop • Jan 21st, 2011
Theoretical Performance
AMD Radeon HD 7990 | vs | AMD Radeon HD 6770 |
|---|---|---|
Apr 24th, 2013 | Release Date | Jan 21st, 2011 |
| Southern Islands | Generation | Northern Islands |
| $999 | MSRP | $129 |
| 1x DVI, 4x mini-DisplayPort | Outputs | 2x DVI, 1x HDMI, 2x mini-DisplayPort |
| 2x 8-pin | Power Connectors | 1x 6-pin |
Desktop | Segment | Desktop |
3 GB | Memory | 1 GB |
| GDDR5 | Type | GDDR5 |
| 384-bit | Bus | 128-bit |
288 GB/s | Bandwidth | 76.8 GB/s |
950 MHz | Base Clock Speed | 850 MHz |
| 1000 MHz | Boost Clock Speed | Not Available |
1500 MHz | Memory Clock Speed | 1200 MHz |
