Radeon HD 7970 GHz Edition vs Radeon R9 255 OEM
Summary
Reasons to consider Radeon HD 7970 GHz Edition |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |
Reasons to consider Radeon R9 255 OEM |
| 235 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 7970 GHz Edition . |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |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 7970 GHz Edition
Based on theoretical specifications.
Core Configuration
| Radeon HD 7970 GHz Edition | | Radeon R9 255 OEM | |
|---|
| GPU Name | Tahiti (Tahiti XT2) | vs | Cape Verde (Cape Verde PRX) |
| Fab Process | 28 nm | vs | 28 nm |
| Die Size | 352 mm² | vs | 123 mm² |
| Transistors | 4,313 million | vs | 1,500 million |
| Shaders | 2048 | vs | 512 |
| Compute Units | 32 | vs | 8 |
| Core clock | 1000 MHz | vs | 900 MHz |
| ROPs | 32 | vs | 16 |
| TMUs | 128 | vs | 32 |
Memory Configuration
| Radeon HD 7970 GHz Edition | | Radeon R9 255 OEM | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 384 bit | vs | 128 bit |
| Memory Speed | 1500 MHz
6000 MHz effective | vs | 1150 MHz
4600 MHz effective |
| Memory Size | 3072 Mb | vs | 2048 Mb |
Additional details
| Radeon HD 7970 GHz Edition | | Radeon R9 255 OEM | |
|---|
| TDP | 300 watts | vs | 65 watts |
| Release Date | 22 Jun 2012 | vs | 21 Dec 2013 |
GigaPixels - higher is better
GigaTexels - higher is better
GFLOPs - higher is better