The NVIDIA GTX 1080 and the NVIDIA GTX 1660 Ti are tied in this objective comparison, as each component leads in six out of thirteen specifications. The most impactful advantage for the NVIDIA GTX 1080 is its shader unit count, which is 67% higher than that of its competitor. Conversely, the NVIDIA GTX 1660 Ti offers a significant technical lead in FP16 performance, which is 7664% better than the capability found in the NVIDIA GTX 1080.

Users prioritizing raw shader unit capacity should select the NVIDIA GTX 1080 for their system. Those who require superior FP16 performance for their specific computing tasks should choose the NVIDIA GTX 1660 Ti instead. Because these components are evenly matched across the majority of measured specifications, the final decision depends entirely on whether your workload benefits more from the higher shader count or the vastly improved FP16 performance provided by these respective cards.