NVIDIA GeForce GT 640 's Advantages
Lower TDP (65W vs 425W)
NVIDIA GeForce RTX 4090 D 's Advantages
Released 11 years and 6 months late
Boost Clock2520MHz
More VRAM (24GB vs 2GB)
Larger VRAM bandwidth (1008GB/s vs 28.51GB/s)
14208 additional rendering cores