NVIDIA GeForce GTX 980M 's Advantages
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (160.4GB/s vs 96.00GB/s)
1024 additional rendering cores
AMD Radeon RX 540X Mobile 's Advantages
Released 3 years and 6 months late
Boost Clock has increased by 7% (1211MHz vs 1127MHz)