AMD Radeon E9260 PCIe 's Advantages
Boost Clock has increased by 10% (1200MHz vs 1095MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (112.0GB/s vs 32.00GB/s)
384 additional rendering cores
AMD Radeon 540X Mobile 's Advantages
Released 2 years and 5 months late
Lower TDP (50W vs 80W)