AMD Radeon E8860 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (72.00GB/s vs 64.00GB/s)
256 additional rendering cores
AMD Radeon R7 M260X 's Advantages
Released 1 years and 11 months late
Boost Clock has increased by 14% (715MHz vs 625MHz)