AMD Radeon RX 6400 's Advantages
Released 5 years and 7 months late
Boost Clock has increased by 83% (2321MHz vs 1266MHz)
Lower TDP (53W vs 150W)
AMD Radeon RX 580 OEM 's Advantages
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (256.0GB/s vs 128.0GB/s)
1536 additional rendering cores