AMD Radeon Pro Vega 64 's Advantages
Boost Clock1350MHz
More VRAM (16GB vs 4GB)
Larger VRAM bandwidth (402.4GB/s vs 94.08GB/s)
3328 additional rendering cores
AMD Radeon Pro 555X 's Advantages
Released 1 years and 1 months late
Lower TDP (75W vs 250W)