Key Differences
In short — Radeon HD 7870M 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 7870M is 365 days older than Radeon HD 7990.
Advantages of AMD Radeon HD 7870M
- Consumes up to 88% less energy than AMD Radeon HD 7990 - 45 vs 375 Watts
Advantages of AMD Radeon HD 7990
- Up to 50% more VRAM memory than AMD Radeon HD 7870M - 3 vs 2 GB
Cyberpunk 2077
Resolution
1920 x 1080
Game Graphics
RT Overdrive
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
RT Overdrive
Radeon HD 7870M
Mobile • Apr 24th, 2012
Radeon HD 7990
Desktop • Apr 24th, 2013
Theoretical Performance
AMD Radeon HD 7870M | vs | AMD Radeon HD 7990 |
|---|---|---|
| Apr 24th, 2012 | Release Date | Apr 24th, 2013 |
| London | 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 |
| 800 MHz | Base Clock Speed | 950 MHz |
| Not Available | Boost Clock Speed | 1000 MHz |
| 1000 MHz | Memory Clock Speed | 1500 MHz |
