Radeon HD 6450 vs Radeon HD 7870 GHz Edition
Summary
Reasons to consider Radeon HD 6450 |
| 157 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 . |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
Reasons to consider Radeon HD 7870 GHz Edition |
| This is a much newer product, it might have better long term support. |
| Around 1494% higher average synthetic performance. |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |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 7870 GHz Edition
The Radeon HD 7870 GHz Edition is the better performing card based on the synthetic benchmarks used (1 benchmarks).
Core Configuration
| Radeon HD 6450 | | Radeon HD 7870 GHz Edition | |
|---|
| GPU Name | Caicos (Caicos PRO) | vs | Pitcairn (Pitcairn XT) |
| Fab Process | 40 nm | vs | 28 nm |
| Die Size | 67 mm² | vs | 212 mm² |
| Transistors | 370 million | vs | 2,800 million |
| Shaders | 160 | vs | 1280 |
| Compute Units | 2 | vs | 20 |
| Core clock | 625 MHz | vs | 1000 MHz |
| ROPs | 4 | vs | 32 |
| TMUs | 8 | vs | 80 |
Memory Configuration
| Radeon HD 6450 | | Radeon HD 7870 GHz Edition | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 64 bit | vs | 256 bit |
| Memory Speed | 800 MHz
3200 MHz effective | vs | 1200 MHz
4800 MHz effective |
| Memory Size | 512 Mb | vs | 2048 Mb |
Additional details
| Radeon HD 6450 | | Radeon HD 7870 GHz Edition | |
|---|
| TDP | 18 watts | vs | 175 watts |
| Release Date | 7 Apr 2011 | vs | 5 Mar 2012 |
GigaPixels - higher is better
GigaTexels - higher is better
GFLOPs - higher is better
Points (higher is better)