The AMD RX 7800 XT is the objective winner of this comparison, securing victories in ten out of thirteen measured categories. Its most significant technical advantage is its FP16 performance, which is 643% better than that of the NVIDIA GTX 1660. This substantial lead in computational capability establishes the former as the superior hardware choice for users prioritizing raw processing power and modern architectural specifications over the limited advantages offered by the older card.

Users who require high-end computational performance should select the AMD RX 7800 XT to leverage its massive lead in FP16 operations. Conversely, the NVIDIA GTX 1660 remains a viable option for budget-conscious consumers, as it maintains a 56% advantage in MSRP. Choosing between these two components depends entirely on whether the buyer prioritizes the significant performance gains provided by the newer architecture or the lower initial cost associated with the older model.