The NVIDIA RTX 5090 is the objective winner of this comparison, securing victory in eleven out of fourteen measured categories. Its most significant technical advantage is its FP32 performance, which is 355% better than that of the AMD RX 6900 XT. While the latter component remains competitive in specific areas, the former establishes a clear lead in raw computational capability across the vast majority of the evaluated specifications.

Users prioritizing maximum computational power should choose the NVIDIA RTX 5090 for its superior FP32 performance. Conversely, the AMD RX 6900 XT is the better option for budget-conscious buyers, as it holds a 50% advantage in MSRP. Selecting between these two components depends on whether your primary requirement is the highest possible performance ceiling or a more favorable initial purchase cost.