Radeon HD 6990 vs Radeon R9 285
Summary
Radeon HD 6990
100%
Radeon R9 285
100%
Relative performance
Radeon HD 6990
100%
Radeon R9 285
111%
Relative performance
Reasons to consider Radeon HD 6990 |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
Reasons to consider Radeon R9 285 |
| 11% higher gaming performance. |
| 185 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6990 . |
| This is a much newer product, it might have better long term support. |
| Supports Direct3D 12 Async Compute |
| Supports FreeSync |
| Supports ReLive (allows game streaming/recording with minimum performance penalty) |
| Supports TrueAudio |
| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |
HWBench recommends Radeon R9 285
The Radeon R9 285 is the better performing card based on the game benchmark suite used (1 combinations of games and resolutions).
Core Configuration
| Radeon HD 6990 | | Radeon R9 285 | |
|---|
| GPU Name | Antilles (Antilles XT) | vs | Tonga (Tonga PRO) |
| Fab Process | 40 nm | vs | 28 nm |
| Die Size | 389 mm² | vs | 366 mm² |
| Transistors | 2,640 million | vs | 5,000 million |
| Shaders | 1536 | vs | 1792 |
| Compute Units | 24 | vs | 28 |
| Core clock | 830 MHz | vs | 918 MHz |
| ROPs | 32 | vs | 32 |
| TMUs | 96 | vs | 112 |
Memory Configuration
| Radeon HD 6990 | | Radeon R9 285 | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 256 bit x2 | vs | 256 bit |
| Memory Speed | 1250 MHz
5000 MHz effective | vs | 1375 MHz
5500 MHz effective |
| Memory Size | 2048 Mb | vs | 2048 Mb |
Additional details
| Radeon HD 6990 | | Radeon R9 285 | |
|---|
| TDP | 375 watts | vs | 190 watts |
| Release Date | 8 Mar 2011 | vs | 2 Sep 2014 |
Radeon HD 6990
26.60 GP/s
Radeon R9 285
29.38 GP/s
GigaPixels - higher is better
Radeon HD 6990
79.70 GT/s
Radeon R9 285
102.80 GT/s
GigaTexels - higher is better
Radeon HD 6990
160.00 GB/s
Radeon R9 285
176.00 GB/s
GB/s - higher is better
Radeon HD 6990
2550.00 GFLOPs
Radeon R9 285
3290.00 GFLOPs
GFLOPs - higher is better
Radeon HD 6990
10720
Radeon R9 285
10790
Points (higher is better)
DX11, Ultra, DDOD, FXAA
Radeon HD 6990
45
Radeon R9 285
50
FPS (higher is better)