The NVIDIA RTX 5090 is the objective winner of this comparison, securing victories in eleven out of thirteen measured categories. Its most significant advantage over the AMD RX 5600 XT is its FP32 performance, which is 1358% higher. While the AMD RX 5600 XT holds a lead in two categories, the massive disparity in raw computational power establishes the NVIDIA RTX 5090 as the superior component based on the provided technical specifications.

Users prioritizing raw computational throughput should select the NVIDIA RTX 5090 to leverage its substantial lead in FP32 performance. Conversely, those focused on the initial cost of the hardware should choose the AMD RX 5600 XT, as it maintains an 86% advantage in MSRP. This decision rests on whether the user requires the extreme performance capabilities of the NVIDIA card or the specific financial benefit offered by the AMD alternative.