The NVIDIA RTX 2080 Ti is the objective winner of this comparison, securing more category victories across the evaluated specifications. Its most significant advantage is its shader unit count, which is 467% higher than that of the alternative. While the AMD RX 6400 remains competitive in specific areas, the substantial lead in processing hardware makes the NVIDIA RTX 2080 Ti the superior choice for users prioritizing raw technical capability and high-end component density.

Choose the NVIDIA RTX 2080 Ti if your primary goal is maximizing shader performance for demanding graphical tasks. Conversely, the AMD RX 6400 is the logical selection for budget-conscious users, as it offers an 84% advantage in MSRP. By weighing the massive disparity in shader units against the significant cost efficiency of the AMD RX 6400, you can align your purchase with either high-performance requirements or strict financial constraints.