The NVIDIA GeForce RTX 5090D is the objective winner of this comparison, securing victories in twelve out of fourteen measured categories. Its most significant technical advantage is its FP32 performance, which is 252% higher than that of the NVIDIA RTX 3080. While the older card maintains a lead in two specific areas, the newer model demonstrates a clear and substantial superiority across the vast majority of the evaluated hardware specifications.

Users who prioritize raw computational power and cutting-edge performance should choose the NVIDIA GeForce RTX 5090D to take advantage of its massive lead in FP32 capabilities. Conversely, the NVIDIA RTX 3080 remains the logical choice for budget-conscious buyers, as it offers a 70% advantage in MSRP. Selecting between these two components depends entirely on whether your primary requirement is maximizing processing throughput or minimizing the initial financial investment.