Radeon HD 6870 X2 vs Radeon HD 7870 GHz Edition
Summary
Reasons to consider Radeon HD 6870 X2 |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
Reasons to consider Radeon HD 7870 GHz Edition |
| 125 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6870 X2 . |
| Higher theoretical gaming performance, based on specifications. |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |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 7870 GHz Edition
Based on theoretical specifications.
Core Configuration
| Radeon HD 6870 X2 | | Radeon HD 7870 GHz Edition | |
|---|
| GPU Name | Barts (Barts XT) | vs | Pitcairn (Pitcairn XT) |
| Fab Process | 40 nm | vs | 28 nm |
| Die Size | 255 mm² | vs | 212 mm² |
| Transistors | 1,700 million | vs | 2,800 million |
| Shaders | 1120 | vs | 1280 |
| Compute Units | 14 | vs | 20 |
| Core clock | 900 MHz | vs | 1000 MHz |
| ROPs | 32 | vs | 32 |
| TMUs | 56 | vs | 80 |
Memory Configuration
| Radeon HD 6870 X2 | | Radeon HD 7870 GHz Edition | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 256 bit x2 | vs | 256 bit |
| Memory Speed | 1050 MHz
4200 MHz effective | vs | 1200 MHz
4800 MHz effective |
| Memory Size | 1024 Mb | vs | 2048 Mb |
Additional details
| Radeon HD 6870 X2 | | Radeon HD 7870 GHz Edition | |
|---|
| TDP | 300 watts | vs | 175 watts |
| Release Date | 8 Jul 2011 | vs | 5 Mar 2012 |
GigaPixels - higher is better
GigaTexels - higher is better
GFLOPs - higher is better