Radeon HD 6870 vs Radeon HD 6770
Summary
Radeon HD 6870
178%
Radeon HD 6770
100%
Relative performance
Reasons to consider Radeon HD 6870 |
| Around 78% higher average synthetic performance. |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
Reasons to consider Radeon HD 6770 |
| 43 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6870 . |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |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 synthetic benchmarks used (1 benchmarks).
Core Configuration
| Radeon HD 6870 | | Radeon HD 6770 | |
|---|
| GPU Name | Barts (Barts XT) | vs | Juniper (Juniper XT) |
| Fab Process | 40 nm | vs | 40 nm |
| Die Size | 255 mm² | vs | 166 mm² |
| Transistors | 1,700 million | vs | 1,040 million |
| Shaders | 1120 | vs | 800 |
| Compute Units | 14 | vs | 10 |
| Core clock | 900 MHz | vs | 850 MHz |
| ROPs | 32 | vs | 16 |
| TMUs | 56 | vs | 40 |
Memory Configuration
| Radeon HD 6870 | | Radeon HD 6770 | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 256 bit | vs | 128 bit |
| Memory Speed | 1050 MHz
4200 MHz effective | vs | 1200 MHz
4800 MHz effective |
| Memory Size | 1024 Mb | vs | 1024 Mb |
Additional details
| Radeon HD 6870 | | Radeon HD 6770 | |
|---|
| TDP | 151 watts | vs | 108 watts |
| Release Date | 21 Oct 2010 | vs | 21 Jan 2011 |
Radeon HD 6870
28.80 GP/s
Radeon HD 6770
13.60 GP/s
GigaPixels - higher is better
Radeon HD 6870
50.40 GT/s
Radeon HD 6770
34.00 GT/s
GigaTexels - higher is better
Radeon HD 6870
134.00 GB/s
Radeon HD 6770
76.80 GB/s
GB/s - higher is better
Radeon HD 6870
2016.00 GFLOPs
Radeon HD 6770
1360.00 GFLOPs
GFLOPs - higher is better
Radeon HD 6870
4540
Radeon HD 6770
2550
Points (higher is better)