NVIDIA GeForce RTX 4090 's Advantages
Boost Clock has increased by 12% (2520MHz vs 2245MHz)
More VRAM (24GB vs 16GB)
11264 additional rendering cores
AMD Radeon RX 7900 GRE 's Advantages
Released 10 months late
Larger VRAM bandwidth (576.0TB/s vs 1.01TB/s)
Lower TDP (260W vs 450W)