Key Differences
In short — Radeon HD 7990 outperforms Radeon HD 8790M on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Radeon HD 7990 is 23 days newer than Radeon HD 8790M.
Advantages of AMD Radeon HD 7990
- Performs up to 42% better in Watch Dogs: Legion than Radeon HD 8790M - 37 vs 26 FPS
- Up to 50% more VRAM memory than AMD Radeon HD 8790M - 3 vs 2 GB
Watch Dogs: Legion
Resolution
1920 x 1080
Game Graphics
Ultra
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Radeon HD 8790M
Mobile • Apr 1st, 2013
Radeon HD 7990
Desktop • Apr 24th, 2013
Theoretical Performance
AMD Radeon HD 8790M | vs | AMD Radeon HD 7990 |
|---|---|---|
| Apr 1st, 2013 | Release Date | Apr 24th, 2013 |
| Solar System | Generation | Southern Islands |
| Not Available | MSRP | $999 |
| None | Outputs | 1x DVI, 4x mini-DisplayPort |
| None | Power Connectors | 2x 8-pin |
Mobile | Segment | Desktop |
| 2 GB | Memory | 3 GB |
| GDDR5 | Type | GDDR5 |
| 128-bit | Bus | 384-bit |
| 64 GB/s | Bandwidth | 288 GB/s |
| 850 MHz | Base Clock Speed | 950 MHz |
| 900 MHz | Boost Clock Speed | 1000 MHz |
| 1000 MHz | Memory Clock Speed | 1500 MHz |
