NVIDIA A40 PCIe 's Advantages
More VRAM (48GB vs 24GB)
Lower TDP (300W vs 450W)
NVIDIA GeForce RTX 4090 's Advantages
Released 1 years and 11 months late
Boost Clock has increased by 45% (2520MHz vs 1740MHz)
Larger VRAM bandwidth (1008GB/s vs 695.8GB/s)
5632 additional rendering cores