AMD Radeon 540X Mobile 's Advantages
Released 2 years and 9 months late
Boost Clock1095MHz
Lower TDP (50W vs 250W)
AMD Radeon R9 M485X 's Advantages
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (160.0GB/s vs 32.00GB/s)
1536 additional rendering cores