We compared two Mobile platform GPUs: 4GB VRAM Radeon HD 8970M and 2GB VRAM Radeon HD 8690M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 8970M 's Advantages
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (153.6GB/s vs 32.00GB/s)
960 additional rendering cores
AMD Radeon HD 8690M 's Advantages
Boost Clock has increased by 8% (975MHz vs 900MHz)