Radeon HD 7870 GHz Edition vs Radeon HD 8490 OEM
Summary
Reasons to consider Radeon HD 7870 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |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 HD 8490 OEM |
| 140 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 7870 GHz Edition . |
| This is a much newer product, it might have better long term support. |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
HWBench recommends Radeon HD 7870 GHz Edition
Based on theoretical specifications.
Core Configuration
| Radeon HD 7870 GHz Edition | | Radeon HD 8490 OEM | |
|---|
| GPU Name | Pitcairn (Pitcairn XT) | vs | Caicos (Caicos XTX) |
| Fab Process | 28 nm | vs | 40 nm |
| Die Size | 212 mm² | vs | 67 mm² |
| Transistors | 2,800 million | vs | 370 million |
| Shaders | 1280 | vs | 160 |
| Compute Units | 20 | vs | 2 |
| Core clock | 1000 MHz | vs | 875 MHz |
| ROPs | 32 | vs | 4 |
| TMUs | 80 | vs | 8 |
Memory Configuration
| Radeon HD 7870 GHz Edition | | Radeon HD 8490 OEM | |
|---|
| Memory Type | GDDR5 | vs | DDR3 |
| Bus Width | 256 bit | vs | 64 bit |
| Memory Speed | 1200 MHz
4800 MHz effective | vs | 900 MHz
1800 MHz effective |
| Memory Size | 2048 Mb | vs | 1024 Mb |
Additional details
| Radeon HD 7870 GHz Edition | | Radeon HD 8490 OEM | |
|---|
| TDP | 175 watts | vs | 35 watts |
| Release Date | 5 Mar 2012 | vs | 23 Jul 2013 |
GigaPixels - higher is better
GigaTexels - higher is better
GFLOPs - higher is better