The AMD RX 7700 XT is the objective winner of this comparison, securing a lead in nine out of thirteen measured specifications. The most impactful advantage offered by the AMD RX 7700 XT is its FP16 performance, which is 600% better than that of the NVIDIA GTX 1660 SUPER. This significant technical lead establishes the former as the superior option for users prioritizing raw computational throughput and modern hardware capabilities over the efficiency metrics held by the latter.

Users who require high-performance computing power should select the AMD RX 7700 XT to leverage its massive advantage in FP16 performance. Conversely, the NVIDIA GTX 1660 SUPER remains the logical choice for those who prioritize power efficiency, as it maintains a 49% advantage in TDP. Choosing between these two components depends entirely on whether your primary objective is maximizing raw processing potential or minimizing power consumption within your system configuration.