AMD Radeon Pro Vega 56 's Advantages
Boost Clock has increased by 15% (1250MHz vs 1089MHz)
Larger VRAM bandwidth (402.4GB/s vs 160.0GB/s)
1792 additional rendering cores
AMD Radeon E9390 PCIe 's Advantages
Released 2 years and 2 months late
Lower TDP (75W vs 210W)