RTX 2080 vs GTX 1660 SUPER

Yes, with regards to performance, Nvidia GeForce RTX 2080 outperforms, GeForce GTX 1660 SUPER by 82.5%.

When it comes to power efficiency, RTX 2080 falls behind with an efficiency score that is 44.4, -8.7% lower than that of GTX 1660 SUPER 48.6. Consuming 125 watts, GTX 1660 SUPER has better power consumption to peformance ratio. The efficiency score is calculated by comparing the benchmark score with power consumption

RTX 2080 price to performance rating is lower than GTX 1660 SUPER's by -54.2%. Here is more in depth overview of the price and used prices of RTX 2080 Price History and GTX 1660 SUPER Price History