NVIDIA GeForce GTX 880M 's Advantages
Boost Clock has increased by 39% (993MHz vs 715MHz)
More VRAM (8GB vs 1GB)
Larger VRAM bandwidth (160.0GB/s vs 16.00GB/s)
1152 additional rendering cores
AMD Radeon R7 M340 's Advantages
Released 1 years and 9 months late