NVIDIA GeForce GTX 770M 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (96.19GB/s vs 48.00GB/s)
448 additional rendering cores
AMD Radeon 540 Mobile 's Advantages
Released 5 years and 10 months late
Boost Clock has increased by 41% (1124MHz vs 797MHz)
Lower TDP (50W vs 75W)