AMD Radeon HD 8990 OEM 's Advantages
Lower TDP (375W vs 450W)
NVIDIA GeForce RTX 4090 's Advantages
Released 9 years and 5 months late
Boost Clock has increased by 152% (2520MHz vs 1000MHz)
More VRAM (24GB vs 3GB)
Larger VRAM bandwidth (1.01TB/s vs 288.0GB/s)
14336 additional rendering cores