NVIDIA GeForce GTX 870M 's Advantages
Boost Clock has increased by 35% (967MHz vs 715MHz)
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (120.0GB/s vs 64.00GB/s)
960 additional rendering cores
AMD Radeon R7 M260X 's Advantages
Released 1 years and 9 months late