The NVIDIA GTX 1660 Ti is the objective winner of this comparison, securing more total spec victories across the evaluated fields. While the NVIDIA GTX 1080 Ti maintains a significant lead in raw hardware capacity with 133% more shader units, the 1660 Ti dominates in modern computational efficiency. Its most impactful advantage is a 5939% improvement in FP16 performance, which provides a substantial architectural edge in specific processing tasks compared to its counterpart.

Users prioritizing high-precision computational throughput should choose the NVIDIA GTX 1660 Ti for its massive advantage in FP16 performance. Conversely, those who require the highest raw shader count for their specific workload should opt for the NVIDIA GTX 1080 Ti. Selecting between these two components depends entirely on whether your primary needs favor the superior shader density of the older flagship or the vastly improved floating-point efficiency found in the newer model.