No, in terms of performance, Nvidia GeForce GTX 1060 5GB is slower than, Nvidia GeForce GTX 1660 Ti by -63.1%.
When it comes to power efficiency, GTX 1060 5GB falls behind with an efficiency score that is 32.6, -38.7% lower than that of GTX 1660 Ti 53.1. Consuming 120 watts, GTX 1660 Ti has better power consumption to peformance ratio. The efficiency score is calculated by comparing the benchmark score with power consumption
GTX 1060 5GB price to performance rating is lower than GTX 1660 Ti's by -280.0%. Here is more in depth overview of the price and used prices of GTX 1060 5GB Price History and GTX 1660 Ti Price History