The NVIDIA RTX 3060 Ti is the objective winner of this comparison, securing victory in eight out of thirteen measured fields. Its most significant advantage over the competition is its shader unit count, which is 217% higher. While the NVIDIA GTX 1660 Ti maintains a lead in power efficiency, the substantial increase in processing hardware makes the RTX 3060 Ti the superior choice for raw computational capacity across the majority of the evaluated technical specifications.

Users prioritizing maximum hardware throughput should select the NVIDIA RTX 3060 Ti to leverage its vastly superior shader count. Conversely, the NVIDIA GTX 1660 Ti remains the appropriate choice for those who specifically require a lower power draw, as it offers a 40% advantage in TDP. Choosing between these two components depends entirely on whether your primary requirement is the increased processing power of the newer model or the improved power efficiency of the older unit.