The AMD RX 6900 XT is the objective winner of this comparison, having secured victories in ten out of fourteen measured specifications. Its most significant advantage over the NVIDIA RTX 2080 SUPER is its FP32 performance, which is 107% better. This substantial lead in raw computational capability establishes the former as the superior hardware option based on the provided technical data, while the latter only outperformed its competitor in two specific categories.

Users prioritizing raw computational power should select the AMD RX 6900 XT to take advantage of its vastly superior FP32 performance. Conversely, the NVIDIA RTX 2080 SUPER remains a viable alternative for those focused on the initial MSRP, where it holds a 30% advantage over the competing card. Your final decision should depend on whether you value the significant performance gains of the former or the cost-related benefit provided by the latter.