Radeon HD 5490 vs Radeon HD 7990
Summary
Reasons to consider Radeon HD 5490 |
| 356 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 7990 . |
| Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications |
Reasons to consider Radeon HD 7990 |
| 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| Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications |
HWBench recommends Radeon HD 7990
Based on theoretical specifications.
Core Configuration
| Radeon HD 5490 | | Radeon HD 7990 | |
|---|
| GPU Name | Cedar (Cedar XTX) | vs | Malta () |
| Fab Process | 40 nm | vs | 28 nm |
| Die Size | 59 mm² | vs | 365 mm² |
| Transistors | 292 million | vs | 4,313 million |
| Shaders | 80 | vs | 2048 |
| Compute Units | 2 | vs | 32 |
| Core clock | 650 MHz | vs | 950 MHz |
| ROPs | 4 | vs | 32 |
| TMUs | 8 | vs | 128 |
Memory Configuration
| Radeon HD 5490 | | Radeon HD 7990 | |
|---|
| Memory Type | GDDR3 | vs | GDDR5 |
| Bus Width | 64 bit | vs | 384 bit x2 |
| Memory Speed | 500 MHz
1000 MHz effective | vs | 1500 MHz
6000 MHz effective |
| Memory Size | 1024 Mb | vs | 3072 Mb |
Additional details
| Radeon HD 5490 | | Radeon HD 7990 | |
|---|
| TDP | 19 watts | vs | 375 watts |
| Release Date | 28 Oct 2012 | vs | 24 Apr 2013 |
Radeon HD 5490
2.60 GP/s
Radeon HD 7990
60.80 GP/s
GigaPixels - higher is better
Radeon HD 5490
5.20 GT/s
Radeon HD 7990
244.00 GT/s
GigaTexels - higher is better
Radeon HD 5490
8.00 GB/s
Radeon HD 7990
576.00 GB/s
GB/s - higher is better
Radeon HD 5490
104.00 GFLOPs
Radeon HD 7990
7782.00 GFLOPs
GFLOPs - higher is better