AMD Radeon Pro 580X 's Advantages
More VRAM (8GB vs 4GB)
896 additional rendering cores
AMD Radeon Pro W5500M 's Advantages
Released 11 months late
Boost Clock has increased by 42% (1700MHz vs 1200MHz)
Larger VRAM bandwidth (224.0GB/s vs 218.9GB/s)
Lower TDP (85W vs 185W)