Radeon HD 4580 vs Radeon HD 6850 X2
Summary
Reasons to consider Radeon HD 4580 |
| 189 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6850 X2 . |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
Reasons to consider Radeon HD 6850 X2 |
| Higher theoretical gaming performance, based on specifications. |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
HWBench recommends Radeon HD 6850 X2
Based on theoretical specifications.
Core Configuration
| Radeon HD 4580 | | Radeon HD 6850 X2 | |
|---|
| GPU Name | RV635 (RV635 PRO) | vs | Barts (Barts PRO) |
| Fab Process | 55 nm | vs | 40 nm |
| Die Size | 135 mm² | vs | 255 mm² |
| Transistors | 378 million | vs | 1,700 million |
| Shaders | 120 | vs | 960 |
| Compute Units | 3 | vs | 12 |
| Core clock | 796 MHz | vs | 800 MHz |
| ROPs | 4 | vs | 32 |
| TMUs | 8 | vs | 48 |
Memory Configuration
| Radeon HD 4580 | | Radeon HD 6850 X2 | |
|---|
| Memory Type | GDDR3 | vs | GDDR5 |
| Bus Width | 128 bit | vs | 256 bit x2 |
| Memory Speed | 693 MHz
1386 MHz effective | vs | 1050 MHz
4200 MHz effective |
| Memory Size | 512 Mb | vs | 2048 Mb |
Additional details
| Radeon HD 4580 | | Radeon HD 6850 X2 | |
|---|
| TDP | 65 watts | vs | 254 watts |
| Release Date | 20 Nov 2011 | vs | 19 Sep 2011 |
Radeon HD 4580
3.18 GP/s
Radeon HD 6850 X2
51.20 GP/s
GigaPixels - higher is better
Radeon HD 4580
6.37 GT/s
Radeon HD 6850 X2
76.80 GT/s
GigaTexels - higher is better
Radeon HD 4580
22.20 GB/s
Radeon HD 6850 X2
268.00 GB/s
GB/s - higher is better
Radeon HD 4580
191.00 GFLOPs
Radeon HD 6850 X2
3072.00 GFLOPs
GFLOPs - higher is better