Radeon HD 4870 vs Radeon HD 8490 OEM
Summary
Reasons to consider Radeon HD 4870 |
| Higher theoretical gaming performance, based on specifications. |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
Reasons to consider Radeon HD 8490 OEM |
| 115 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 4870 . |
| 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| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |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 4870
Based on theoretical specifications.
Core Configuration
| Radeon HD 4870 | | Radeon HD 8490 OEM | |
|---|
| GPU Name | RV770 (RV770 PRO) | vs | Caicos (Caicos XTX) |
| Fab Process | 55 nm | vs | 40 nm |
| Die Size | 256 mm² | vs | 67 mm² |
| Transistors | 956 million | vs | 370 million |
| Shaders | 800 | vs | 160 |
| Compute Units | 10 | vs | 2 |
| Core clock | 750 MHz | vs | 875 MHz |
| ROPs | 16 | vs | 4 |
| TMUs | 40 | vs | 8 |
Memory Configuration
| Radeon HD 4870 | | Radeon HD 8490 OEM | |
|---|
| Memory Type | GDDR5 | vs | DDR3 |
| Bus Width | 256 bit | vs | 64 bit |
| Memory Speed | 900 MHz
3600 MHz effective | vs | 900 MHz
1800 MHz effective |
| Memory Size | 512 Mb | vs | 1024 Mb |
Additional details
| Radeon HD 4870 | | Radeon HD 8490 OEM | |
|---|
| TDP | 150 watts | vs | 35 watts |
| Release Date | 25 Jun 2008 | vs | 23 Jul 2013 |
Radeon HD 4870
12.00 GP/s
Radeon HD 8490 OEM
3.50 GP/s
GigaPixels - higher is better
Radeon HD 4870
30.00 GT/s
Radeon HD 8490 OEM
7.00 GT/s
GigaTexels - higher is better
Radeon HD 4870
115.00 GB/s
Radeon HD 8490 OEM
14.40 GB/s
GB/s - higher is better
Radeon HD 4870
1200.00 GFLOPs
Radeon HD 8490 OEM
280.00 GFLOPs
GFLOPs - higher is better