AMD Radeon E9260 PCIe 's Advantages
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (112.0GB/s vs 96.00GB/s)
256 additional rendering cores
AMD Radeon RX 550 Mobile 's Advantages
Released 10 months late
Boost Clock has increased by 7% (1287MHz vs 1200MHz)
Lower TDP (50W vs 80W)