Radeon HD 6870 vs Radeon HD 7770 GHz Edition
Summary
Reasons to consider Radeon HD 6870 |
| 30% higher gaming performance. |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
Reasons to consider Radeon HD 7770 GHz Edition |
| 71 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6870 . |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |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 6870
The Radeon HD 6870 is the better performing card based on the game benchmark suite used (41 combinations of games and resolutions).
Core Configuration
| Radeon HD 6870 | | Radeon HD 7770 GHz Edition | |
|---|
| GPU Name | Barts (Barts XT) | vs | Cape Verde (Cape Verde XT) |
| Fab Process | 40 nm | vs | 28 nm |
| Die Size | 255 mm² | vs | 123 mm² |
| Transistors | 1,700 million | vs | 1,500 million |
| Shaders | 1120 | vs | 640 |
| Compute Units | 14 | vs | 10 |
| Core clock | 900 MHz | vs | 1000 MHz |
| ROPs | 32 | vs | 16 |
| TMUs | 56 | vs | 40 |
Memory Configuration
| Radeon HD 6870 | | Radeon HD 7770 GHz Edition | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 256 bit | vs | 128 bit |
| Memory Speed | 1050 MHz
4200 MHz effective | vs | 1125 MHz
4500 MHz effective |
| Memory Size | 1024 Mb | vs | 1024 Mb |
Additional details
| Radeon HD 6870 | | Radeon HD 7770 GHz Edition | |
|---|
| TDP | 151 watts | vs | 80 watts |
| Release Date | 21 Oct 2010 | vs | 15 Feb 2012 |
GigaPixels - higher is better
GigaTexels - higher is better
GFLOPs - higher is better
Points (higher is better)
DX11, Ultra Quality,DDOD, FX AA
FPS (higher is better)
DX11,Very High Quality, FXAA
FPS (higher is better)
DX11, Ultra Quality, 4xMSAA
FPS (higher is better)