Radeon HD 6670 vs Radeon R9 255 OEM
Summary
Reasons to consider Radeon HD 6670 |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
Reasons to consider Radeon R9 255 OEM |
| This is a much newer product, it might have better long term support. |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |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 R9 255 OEM
Based on theoretical specifications.
Core Configuration
| Radeon HD 6670 | | Radeon R9 255 OEM | |
|---|
| GPU Name | Turks (Turks XT) | vs | Cape Verde (Cape Verde PRX) |
| Fab Process | 40 nm | vs | 28 nm |
| Die Size | 118 mm² | vs | 123 mm² |
| Transistors | 716 million | vs | 1,500 million |
| Shaders | 480 | vs | 512 |
| Compute Units | 6 | vs | 8 |
| Core clock | 800 MHz | vs | 900 MHz |
| ROPs | 8 | vs | 16 |
| TMUs | 24 | vs | 32 |
Memory Configuration
| Radeon HD 6670 | | Radeon R9 255 OEM | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 128 bit | vs | 128 bit |
| Memory Speed | 1000 MHz
4000 MHz effective | vs | 1150 MHz
4600 MHz effective |
| Memory Size | 1024 Mb | vs | 2048 Mb |
Additional details
| Radeon HD 6670 | | Radeon R9 255 OEM | |
|---|
| TDP | 66 watts | vs | 65 watts |
| Release Date | 19 Apr 2011 | vs | 21 Dec 2013 |
Radeon HD 6670
6.40 GP/s
Radeon R9 255 OEM
14.40 GP/s
GigaPixels - higher is better
Radeon HD 6670
19.20 GT/s
Radeon R9 255 OEM
28.80 GT/s
GigaTexels - higher is better
Radeon HD 6670
64.00 GB/s
Radeon R9 255 OEM
73.60 GB/s
GB/s - higher is better
Radeon HD 6670
768.00 GFLOPs
Radeon R9 255 OEM
921.60 GFLOPs
GFLOPs - higher is better