Radeon HD 6990M vs Radeon HD 8550M
Summary
Reasons to consider Radeon HD 6990M |
| 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| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |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 8550M |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |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 6990M
Based on theoretical specifications.
Core Configuration
| Radeon HD 6990M | | Radeon HD 8550M | |
|---|
| GPU Name | Blackcomb (Blackcomb XTX) | vs | Sun (Sun LE) |
| Fab Process | 40 nm | vs | 28 nm |
| Die Size | 212 mm² | vs | 77 mm² |
| Transistors | 1,700 million | vs | 1,040 million |
| Shaders | 1120 | vs | 320 |
| Compute Units | 14 | vs | 5 |
| Core clock | 715 MHz | vs | 650 MHz |
| ROPs | 32 | vs | 8 |
| TMUs | 56 | vs | 20 |
Memory Configuration
| Radeon HD 6990M | | Radeon HD 8550M | |
|---|
| 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 | 2048 Mb | vs | 1024 Mb |
Additional details
| Radeon HD 6990M | | Radeon HD 8550M | |
|---|
| TDP | 100 watts | vs | 0 watts |
| Release Date | 12 Jul 2011 | vs | 13 Jul 2014 |
Radeon HD 6990M
22.88 GP/s
Radeon HD 8550M
6.80 GP/s
GigaPixels - higher is better
Radeon HD 6990M
40.00 GT/s
Radeon HD 8550M
17.00 GT/s
GigaTexels - higher is better
Radeon HD 6990M
115.20 GB/s
Radeon HD 8550M
14.40 GB/s
GB/s - higher is better
Radeon HD 6990M
1601.60 GFLOPs
Radeon HD 8550M
544.00 GFLOPs
GFLOPs - higher is better