The AMD RX 6900 XT is the objective winner of this comparison, securing a lead in nine out of fourteen measured specifications. Its most significant advantage is its FP32 performance, which is 71% higher than that of the NVIDIA RTX 2080 Ti. This substantial lead in raw computational throughput establishes the AMD RX 6900 XT as the superior choice for users prioritizing high-end processing power across the majority of the evaluated technical categories.

Users who require the highest possible FP32 performance should choose the AMD RX 6900 XT for their system. Conversely, the NVIDIA RTX 2080 Ti remains a viable alternative for specific workflows that benefit from its memory bus, which is 38% wider than the interface found on the AMD RX 6900 XT. Selecting between these two components depends on whether your primary requirement is the superior computational capacity of the former or the memory bus advantage of the latter.