Attribute | Radeon R9 M390X × | Radeon R9 280X × |
---|---|---|
GPU | ||
Release year (year) | 2015 | 2013 |
Reference card | - | AMD Radeon R9 280X 850 MHz 3 GB |
GPU brand | AMD | AMD |
GPU name | Amethyst | Tahiti |
Market | Laptop | Desktop |
Clock speed (MHz) | 723 | 850 |
Turbo clock speed (MHz) | 950 | 1,000 |
Is dual GPU | - | - |
Model | Radeon R9 M390X | Radeon R9 280X |
Memory | ||
Memory (MB) | 4,096 | 3,072 |
Memory bandwidth (GB/s) | 160 | 288 |
Memory bus (bit) | 256 | 384 |
Memory type | GDDR5 | GDDR5 |
Memory clock speed (MHz) | 1,250 | 1,500 |
1↑Effective memory clock speed (MHz) | 5,000 | 6,000 |
Noise and power | ||
TDP (W) | 100 | 250 |
Raw performance | ||
Pixel rate (GPixel/s) | 23.14 | 32 |
Render output processors | 32 | 32 |
Texture mapping units | 128 | 128 |
Shading units | 2,048 | 2,048 |
Floating-point performance (GFLOPS) | 2,961 | 4,096 |
Compute units | 32 | 32 |
Texture rate (GTexel/s) | 92.5 | 128 |
Benchmarks | ||
Cloud Gate Factor | 23.65 | - |
Battlefield 4 | 63.65 | 39.9 |
Face detection (mPixels/s) | 44.39 | 95.62 |
T-Rex (GFXBench 3.0) | 3356.44 | 3356.04 |
Manhattan (GFXBench 3.0) | 3384.91 | 3709.16 |
Bitcoin mining (mHash/s) | 241.5 | 468.39 |
Sky Diver Factor | 317.44 | 380.99 |
Thief | 35 | 33.6 |
Fire Strike Factor | - | 62.73 |