AMD Radeon RX 550 512SP 's Advantages
Lower TDP (50W vs 75W)
AMD Radeon RX 560X 's Advantages
Released 6 months late
Boost Clock has increased by 19% (1275MHz vs 1071MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (112.0GB/s vs 96.00GB/s)
512 additional rendering cores