Radeon HD 7870 XT vs Radeon R9 285
Summary
Radeon HD 7870 XT
100%
Radeon R9 285
125%
Relative performance
Radeon HD 7870 XT
100%
Radeon R9 285
119%
Relative performance
Reasons to consider Radeon HD 7870 XT |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |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 285 |
| 19% higher gaming performance. |
| This is a much newer product, it might have better long term support. |
| Supports Direct3D 12 Async Compute |
| Supports FreeSync |
| Supports ReLive (allows game streaming/recording with minimum performance penalty) |
| Supports TrueAudio |
| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |
HWBench recommends Radeon R9 285
The Radeon R9 285 is the better performing card based on the game benchmark suite used (1 combinations of games and resolutions).
Core Configuration
| Radeon HD 7870 XT | | Radeon R9 285 | |
|---|
| GPU Name | Tahiti (Tahiti LE) | vs | Tonga (Tonga PRO) |
| Fab Process | 28 nm | vs | 28 nm |
| Die Size | 352 mm² | vs | 366 mm² |
| Transistors | 4,313 million | vs | 5,000 million |
| Shaders | 1536 | vs | 1792 |
| Compute Units | 24 | vs | 28 |
| Core clock | 925 MHz | vs | 918 MHz |
| ROPs | 32 | vs | 32 |
| TMUs | 96 | vs | 112 |
Memory Configuration
| Radeon HD 7870 XT | | Radeon R9 285 | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 256 bit | vs | 256 bit |
| Memory Speed | 1500 MHz
6000 MHz effective | vs | 1375 MHz
5500 MHz effective |
| Memory Size | 2048 Mb | vs | 2048 Mb |
Additional details
| Radeon HD 7870 XT | | Radeon R9 285 | |
|---|
| TDP | 185 watts | vs | 190 watts |
| Release Date | 19 Nov 2012 | vs | 2 Sep 2014 |
Radeon HD 7870 XT
29.60 GP/s
Radeon R9 285
29.38 GP/s
GigaPixels - higher is better
Radeon HD 7870 XT
88.80 GT/s
Radeon R9 285
102.80 GT/s
GigaTexels - higher is better
Radeon HD 7870 XT
192.00 GB/s
Radeon R9 285
176.00 GB/s
GB/s - higher is better
Radeon HD 7870 XT
2842.00 GFLOPs
Radeon R9 285
3290.00 GFLOPs
GFLOPs - higher is better
Radeon HD 7870 XT
8590
Radeon R9 285
10790
Points (higher is better)
DX11, High Quality, 2x MSAA, 16x AF
Radeon HD 7870 XT
36
Radeon R9 285
43
FPS (higher is better)