The NVIDIA RTX 4080 SUPER is the objective winner of this comparison, securing victory in ten out of thirteen measured specifications. Its most significant technical advantage is its FP32 performance, which is 938% better than that of the alternative. While the NVIDIA GTX 1660 SUPER maintains a lead in three specific categories, the sheer scale of the performance gap in primary computational metrics establishes the newer card as the superior hardware option.

Users prioritizing raw computational power and high-end performance should choose the NVIDIA RTX 4080 SUPER for their systems. Conversely, the NVIDIA GTX 1660 SUPER is the appropriate selection for buyers who prioritize a lower MSRP, as it offers a 77% advantage in that specific area. Your final decision should depend on whether your primary requirement is maximizing technical output or minimizing the initial financial investment required for your graphics hardware.