The NVIDIA GeForce RTX 5090D is the objective winner of this comparison, securing victory in ten out of twelve measured categories. Its most significant advantage over the competition is its FP32 performance, which is 1917% higher. While the AMD Radeon RX 5500 XT 8 GB remains competitive in specific areas, the substantial lead in raw computational throughput establishes the NVIDIA GeForce RTX 5090D as the superior hardware option based on the provided technical specifications.

Users prioritizing maximum computational power should select the NVIDIA GeForce RTX 5090D to leverage its massive advantage in FP32 performance. Conversely, the AMD Radeon RX 5500 XT 8 GB is the logical choice for buyers who prioritize a lower MSRP, as it holds a 91% advantage in that category. Choosing between these two components depends entirely on whether your primary requirement is the highest possible performance ceiling or a more accessible entry cost.