AMD Radeon Pro Vega 20 's Advantages
Boost Clock has increased by 5% (1283MHz vs 1218MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (189.4GB/s vs 48.00GB/s)
640 additional rendering cores
AMD Radeon RX 640 Mobile 's Advantages
Released 6 months late
Lower TDP (50W vs 100W)