We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M290X and 2GB VRAM Radeon HD 8770M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M290X 's Advantages
Released 9 months late
Boost Clock has increased by 9% (900MHz vs 825MHz)