Radeon HD 7850M vs Radeon R5 M255
Summary
Reasons to consider Radeon HD 7850M |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |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 R5 M255 |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |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 7850M
Based on theoretical specifications.
Core Configuration
| Radeon HD 7850M | | Radeon R5 M255 | |
|---|
| GPU Name | Heathrow (Heathrow PRO) | vs | Topaz (Topaz PRO) |
| Fab Process | 28 nm | vs | 28 nm |
| Die Size | 123 mm² | vs | 77 mm² |
| Transistors | 1,500 million | vs | unknown |
| Shaders | 640 | vs | 384 |
| Compute Units | 10 | vs | 6 |
| Core clock | 675 MHz | vs | 925 MHz |
| ROPs | 16 | vs | 8 |
| TMUs | 40 | vs | 24 |
Memory Configuration
| Radeon HD 7850M | | Radeon R5 M255 | |
|---|
| Memory Type | GDDR5 | vs | GDDR5 |
| Bus Width | 128 bit | vs | 128 bit |
| Memory Speed | 1000 MHz
4000 MHz effective | vs | 1000 MHz
4000 MHz effective |
| Memory Size | 2048 Mb | vs | 1024 Mb |
Additional details
| Radeon HD 7850M | | Radeon R5 M255 | |
|---|
| TDP | 40 watts | vs | 0 watts |
| Release Date | 24 Apr 2012 | vs | 12 Oct 2014 |
Radeon HD 7850M
10.80 GP/s
Radeon R5 M255
7.52 GP/s
GigaPixels - higher is better
Radeon HD 7850M
27.00 GT/s
Radeon R5 M255
22.56 GT/s
GigaTexels - higher is better
Radeon HD 7850M
64.00 GB/s
Radeon R5 M255
64.00 GB/s
GB/s - higher is better
Radeon HD 7850M
864.00 GFLOPs
Radeon R5 M255
721.90 GFLOPs
GFLOPs - higher is better