AMD Radeon RX 6400 's Advantages
Released 4 years and 5 months late
Boost Clock has increased by 58% (2321MHz vs 1471MHz)
Lower TDP (53W vs 210W)
AMD Radeon RX Vega 56 's Advantages
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (409.6GB/s vs 128.0GB/s)
2816 additional rendering cores