AMD Radeon RX Vega 64 Limited Edition 's Advantages
Boost Clock has increased by 27% (1546MHz vs 1218MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (483.8GB/s vs 112.0GB/s)
3584 additional rendering cores
AMD Radeon 550X 's Advantages
Released 1 years and 7 months late
Lower TDP (50W vs 295W)