No, in terms of performance, Nvidia GeForce GTX 1660 Ti is slower than, Nvidia GeForce RTX 2080 Ti by -129.5%.
When it comes to power efficiency, GTX 1660 Ti falls behind with an efficiency score that is 53.1, -9.2% lower than that of RTX 2080 Ti 58.5. Consuming 250 watts, RTX 2080 Ti has better power consumption to peformance ratio. The efficiency score is calculated by comparing the benchmark score with power consumption
When considering value for money, GTX 1660 Ti offers a better deal than, GeForce RTX 2080 Ti by 216.7%. Here is more in depth overview of the price and used prices of GTX 1660 Ti Price History and RTX 2080 Ti Price History