AMD Radeon R9 280 's Advantages
Lower TDP (200W vs 355W)
AMD Radeon RX 7900 XTX 's Advantages
Released 8 years and 8 months late
Boost Clock has increased by 168% (2498MHz vs 933MHz)
More VRAM (24GB vs 3GB)
Larger VRAM bandwidth (960.0GB/s vs 240.0GB/s)
4352 additional rendering cores