The AMD RX 7900 XTX is the objective winner of this comparison, securing victories in eleven out of thirteen measured fields. Its most significant technical advantage is its FP16 performance, which is 1030% better than that of the NVIDIA GTX 1660 Ti. This massive disparity in computational capability establishes the AMD RX 7900 XTX as the superior hardware option for users requiring high-end processing power across the vast majority of evaluated specifications.

Users prioritizing raw computational performance should select the AMD RX 7900 XTX to leverage its substantial lead in FP16 throughput. Conversely, the NVIDIA GTX 1660 Ti remains a viable alternative for budget-conscious buyers, as it maintains a 72% advantage in MSRP. Choosing between these two components depends entirely on whether the user requires the extensive technical superiority of the former or the cost-effective entry point provided by the latter.