Key Differences
In short — Radeon R9 Nano 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 R9 Nano is 855 days newer than Radeon HD 7990.
Advantages of AMD Radeon R9 Nano
- Performs up to 36% better in Diablo IV than Radeon HD 7990 - 90 vs 66 FPS
- Consumes up to 53% less energy than AMD Radeon HD 7990 - 175 vs 375 Watts
- Up to 33% more VRAM memory than AMD Radeon HD 7990 - 4 vs 3 GB
Diablo IV
Resolution
1920 x 1080
Game Graphics
Ultra
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Radeon R9 Nano
Desktop • Aug 27th, 2015
Radeon HD 7990
Desktop • Apr 24th, 2013
Theoretical Performance
AMD Radeon R9 Nano | vs | AMD Radeon HD 7990 |
|---|---|---|
Aug 27th, 2015 | Release Date | Apr 24th, 2013 |
| Pirate Islands | Generation | Southern Islands |
$649 | MSRP | $999 |
| 1x HDMI, 3x DisplayPort | Outputs | 1x DVI, 4x mini-DisplayPort |
| 1x 8-pin | Power Connectors | 2x 8-pin |
Desktop | Segment | Desktop |
4 GB | Memory | 3 GB |
| HBM | Type | GDDR5 |
| 4096-bit | Bus | 384-bit |
512 GB/s | Bandwidth | 288 GB/s |
1000 MHz | Base Clock Speed | 950 MHz |
| Not Available | Boost Clock Speed | 1000 MHz |
| 500 MHz | Memory Clock Speed | 1500 MHz |
