Attribute | Radeon R9 M290X × | Radeon R9 M390X × |
---|---|---|
GPU | ||
Release year (year) | 2014 | 2015 |
GPU brand | AMD | AMD |
GPU name | Neptune | Amethyst |
1↑Market | Laptop | Laptop |
Clock speed (MHz) | 850 | 723 |
Turbo clock speed (MHz) | 900 | 950 |
Is dual GPU | - | - |
Model | Radeon R9 M290X | Radeon R9 M390X |
Memory | ||
Memory (MB) | 4,096 | 4,096 |
Memory bandwidth (GB/s) | 153.6 | 160 |
Memory bus (bit) | 256 | 256 |
Memory type | GDDR5 | GDDR5 |
Memory clock speed (MHz) | 1,200 | 1,250 |
Effective memory clock speed (MHz) | 4,800 | 5,000 |
Noise and power | ||
TDP (W) | 100 | 100 |
Raw performance | ||
Pixel rate (GPixel/s) | 28.8 | 23.14 |
Render output processors | 32 | 32 |
Texture mapping units | 80 | 128 |
Shading units | 1,280 | 2,048 |
Floating-point performance (GFLOPS) | 2,304 | 2,961 |
Compute units | 20 | 32 |
Texture rate (GTexel/s) | 72 | 92.5 |
Benchmarks | ||
Bioshock Infinite | 46.8 | - |
Cloud Gate Factor | - | 23.65 |
Battlefield 4 | 36.35 | 63.65 |
Face detection (mPixels/s) | 54.52 | 44.39 |
T-Rex (GFXBench 3.0) | 3324.52 | 3356.44 |
Manhattan (GFXBench 3.0) | 2047.22 | 3384.91 |
Bitcoin mining (mHash/s) | 258.05 | 241.5 |
Sky Diver Factor | - | 317.44 |
Thief | 34 | 35 |
Ocean surface simulation (frames/s) | 1134.46 | - |