Radeon HD 6990 vs Radeon HD 7990
Summary
Radeon HD 6990
100%
Radeon HD 7990
172%
Relative performance
Radeon HD 6990
100%
Radeon HD 7990
182%
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| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |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 HD 7990 |
| 82% higher gaming performance. |
| This is a much newer product, it might have better long term support. |
| Supports Direct3D 12 Async Compute |
| Supports ReLive (allows game streaming/recording with minimum performance penalty) |
| Supports Mantle |
| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |
HWBench recommends Radeon HD 7990
The Radeon HD 7990 is the better performing card based on the game benchmark suite used (2 combinations of games and resolutions).
Core Configuration
| Radeon HD 6990 | | Radeon HD 7990 | |
|---|
| GPU Name | Antilles (Antilles XT) | vs | Malta () |
| Fab Process | 40 nm | vs | 28 nm |
| Die Size | 389 mm² | vs | 365 mm² |
| Transistors | 2,640 million | vs | 4,313 million |
| Shaders | 1536 | vs | 2048 |
| Compute Units | 24 | vs | 32 |
| Core clock | 830 MHz | vs | 950 MHz |
| ROPs | 32 | vs | 32 |
| TMUs | 96 | vs | 128 |
Memory Configuration
| Radeon HD 6990 | | Radeon HD 7990 | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 256 bit x2 | vs | 384 bit x2 |
| Memory Speed | 1250 MHz
5000 MHz effective | vs | 1500 MHz
6000 MHz effective |
| Memory Size | 2048 Mb | vs | 3072 Mb |
Additional details
| Radeon HD 6990 | | Radeon HD 7990 | |
|---|
| TDP | 375 watts | vs | 375 watts |
| Release Date | 8 Mar 2011 | vs | 24 Apr 2013 |
Radeon HD 6990
26.60 GP/s
Radeon HD 7990
60.80 GP/s
GigaPixels - higher is better
Radeon HD 6990
79.70 GT/s
Radeon HD 7990
244.00 GT/s
GigaTexels - higher is better
Radeon HD 6990
160.00 GB/s
Radeon HD 7990
576.00 GB/s
GB/s - higher is better
Radeon HD 6990
2550.00 GFLOPs
Radeon HD 7990
7782.00 GFLOPs
GFLOPs - higher is better
Radeon HD 6990
10720
Radeon HD 7990
18530
Points (higher is better)
DX11, Ultra Quality,DDOD, FX AA
Radeon HD 6990
71
Radeon HD 7990
122
FPS (higher is better)
DX11,Very High Quality, FXAA
Radeon HD 6990
41
Radeon HD 7990
79
FPS (higher is better)