NVIDIA GeForce GTX 780M 's Advantages
Boost Clock has increased by 11% (797MHz vs 715MHz)
More VRAM (4GB vs 1GB)
Larger VRAM bandwidth (160.0GB/s vs 64.00GB/s)
1152 additional rendering cores
AMD Radeon R7 M260X 's Advantages
Released 2 years and 7 months late