Radeon HD 4870 X2 vs Radeon HD 6990
Summary
Radeon HD 4870 X2
100%
Radeon HD 6990
257%
Relative performance
Reasons to consider Radeon HD 4870 X2 |
| 89 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the 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| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |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 6990 |
| This is a much newer product, it might have better long term support. |
| Around 157% higher average synthetic performance. |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
HWBench recommends Radeon HD 6990
The Radeon HD 6990 is the better performing card based on the synthetic benchmarks used (1 benchmarks).
Core Configuration
| Radeon HD 4870 X2 | | Radeon HD 6990 | |
|---|
| GPU Name | R700 (R700 XT) | vs | Antilles (Antilles XT) |
| Fab Process | 55 nm | vs | 40 nm |
| Die Size | 256 mm² | vs | 389 mm² |
| Transistors | 956 million | vs | 2,640 million |
| Shaders | 800 | vs | 1536 |
| Compute Units | 10 | vs | 24 |
| Core clock | 700 MHz | vs | 830 MHz |
| ROPs | 16 | vs | 32 |
| TMUs | 40 | vs | 96 |
Memory Configuration
| Radeon HD 4870 X2 | | Radeon HD 6990 | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 256 bit x2 | vs | 256 bit x2 |
| Memory Speed | 900 MHz
3600 MHz effective | vs | 1250 MHz
5000 MHz effective |
| Memory Size | 1024 Mb | vs | 2048 Mb |
Additional details
| Radeon HD 4870 X2 | | Radeon HD 6990 | |
|---|
| TDP | 286 watts | vs | 375 watts |
| Release Date | 12 Aug 2008 | vs | 8 Mar 2011 |
Radeon HD 4870 X2
22.40 GP/s
Radeon HD 6990
26.60 GP/s
GigaPixels - higher is better
Radeon HD 4870 X2
56.00 GT/s
Radeon HD 6990
79.70 GT/s
GigaTexels - higher is better
Radeon HD 4870 X2
230.00 GB/s
Radeon HD 6990
160.00 GB/s
GB/s - higher is better
Radeon HD 4870 X2
2240.00 GFLOPs
Radeon HD 6990
2550.00 GFLOPs
GFLOPs - higher is better
Radeon HD 4870 X2
4170
Radeon HD 6990
10720
Points (higher is better)