Graphics card comparison
Radeon HD 6990 vs Radeon R9 285
AMD
Radeon HD 6990
2048 Mb GDDR5
Released 8 Mar 2011
DESKTOP
VS
AMD
Radeon R9 285
2048 Mb GDDR5
Released 2 Sep 2014
DESKTOP
Summary
Synthetic performance index
- Radeon HD 6990100%
- Radeon R9 285100%
Relative performance
Gaming performance index
- Radeon HD 6990100%
- Radeon R9 285111%
Relative performance
Reasons to consider the Radeon HD 6990
- Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications
Reasons to consider the 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- Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications
Our verdict
HWSpot recommends the 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).
Specifications
Core configuration
| Radeon HD 6990 | Radeon R9 285 |
|---|
| GPU Name | Antilles (Antilles XT) | Tonga (Tonga PRO) |
| Fab Process | 40 nm | 28 nm |
| Die Size | 389 mm² | 366 mm² |
| Transistors | 2,640 million | 5,000 million |
| Shaders | 1536 | 1792 |
| Compute Units | 24 | 28 |
| Core clock | 830 MHz | 918 MHz |
| ROPs | 32 | 32 |
| TMUs | 96 | 112 |
Memory configuration
| Radeon HD 6990 | Radeon R9 285 |
|---|
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 256 bit x2 | 256 bit |
| Memory Speed | 1250 MHz
5000 MHz effective | 1375 MHz
5500 MHz effective |
| Memory Size | 2048 Mb | 2048 Mb |
Additional details
| Radeon HD 6990 | Radeon R9 285 |
|---|
| TDP | 375 watts | 190 watts |
| Release Date | 8 Mar 2011 | 2 Sep 2014 |
Raw performance comparison
Pixel Rate
- Radeon HD 699026.60 GP/s
- Radeon R9 28529.38 GP/s
GigaPixels - higher is better
Texel Rate
- Radeon HD 699079.70 GT/s
- Radeon R9 285102.80 GT/s
GigaTexels - higher is better
Memory bandwidth
- Radeon HD 6990160.00 GB/s
- Radeon R9 285176.00 GB/s
GB/s - higher is better
Single precision performance
- Radeon HD 69902550.00 GFLOPs
- Radeon R9 2853290.00 GFLOPs
GFLOPs - higher is better
Synthetic benchmarks
3DMark 11
- Radeon HD 699010720
- Radeon R9 28510790
Points (higher is better)
Game benchmarks
Bioshock Infinite
DX11, Ultra, DDOD, FXAA
- Radeon HD 699045
- Radeon R9 28550
FPS (higher is better)