AMD Radeon RX 6800 's Advantages
More VRAM (16GB vs 12GB)
Larger VRAM bandwidth (512.0GB/s vs 432.0GB/s)
1280 additional rendering cores
AMD Radeon RX 6750 GRE 12 GB 's Advantages
Released 3 years late
Boost Clock has increased by 23% (2581MHz vs 2105MHz)