Key Differences
In short — Radeon HD 7990 outperforms Radeon HD 7870 XT on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Radeon HD 7990 is 156 days newer than Radeon HD 7870 XT.
Advantages of AMD Radeon HD 7870 XT
- Consumes up to 51% less energy than AMD Radeon HD 7990 - 185 vs 375 Watts
Advantages of AMD Radeon HD 7990
- Performs up to 43% better in Metro Exodus than Radeon HD 7870 XT - 10 vs 7 FPS
- Up to 50% more VRAM memory than AMD Radeon HD 7870 XT - 3 vs 2 GB
Metro Exodus
Resolution
1920 x 1080
Game Graphics
Extreme
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Extreme
Radeon HD 7870 XT
Desktop • Nov 19th, 2012
Radeon HD 7990
Desktop • Apr 24th, 2013
Theoretical Performance
Radeon HD 7870 XT
Desktop • Nov 19th, 2012
Pixel Fillrate
31.2 GPixel/s
97%
Texel Fillrate
93.6 GTexel/s
73%
AMD Radeon HD 7870 XT | vs | AMD Radeon HD 7990 |
|---|---|---|
| Nov 19th, 2012 | Release Date | Apr 24th, 2013 |
| Southern Islands | Generation | Southern Islands |
$270 | MSRP | $999 |
| 1x DVI, 1x HDMI, 2x mini-DisplayPort | Outputs | 1x DVI, 4x mini-DisplayPort |
| 2x 6-pin | Power Connectors | 2x 8-pin |
Desktop | Segment | Desktop |
| 2 GB | Memory | 3 GB |
| GDDR5 | Type | GDDR5 |
| 256-bit | Bus | 384-bit |
| 192 GB/s | Bandwidth | 288 GB/s |
| 925 MHz | Base Clock Speed | 950 MHz |
| 975 MHz | Boost Clock Speed | 1000 MHz |
| 1500 MHz | Memory Clock Speed | 1500 MHz |
