AMD Radeon RX 6400 's Advantages
Released 8 years and 8 months late
Boost Clock2321MHz
More VRAM (4GB vs 1GB)
Larger VRAM bandwidth (128.0GB/s vs 40.06GB/s)
384 additional rendering cores
NVIDIA GeForce GT 640 Rev. 2 's Advantages
Lower TDP (49W vs 53W)