AMD Radeon RX 7800 's Advantages
Released 6 years and 7 months late
Boost Clock2800MHz
More VRAM (16GB vs 2GB)
Larger VRAM bandwidth (576.0GB/s vs 104.0GB/s)
3072 additional rendering cores
AMD Radeon RX 455 OEM 's Advantages
Lower TDP (100W vs 300W)