The AMD RX 9070 is the objective winner of this comparison, securing victories in ten out of thirteen measured specifications. Its most significant technical advantage is its FP16 performance, which is 619% better than that of the NVIDIA GTX 1660. This substantial lead in computational capability establishes the AMD RX 9070 as the superior hardware choice for users prioritizing raw processing power and modern technical specifications over other considerations.

Users who require high-level computational performance should select the AMD RX 9070 to leverage its massive advantage in FP16 operations. Conversely, the NVIDIA GTX 1660 remains a viable option for budget-conscious buyers, as it holds a 60% advantage in MSRP. Choosing between these two components depends entirely on whether your primary objective is to maximize technical processing power or to minimize the initial cost of your graphics hardware.