No, in terms of performance, Nvidia GeForce GTX 1660 SUPER is slower than, AMD Radeon RX 6600 XT by -59.7%.
When it comes to power efficiency, GTX 1660 SUPER falls behind with an efficiency score that is 48.6, -19.9% lower than that of RX 6600 XT 60.7. Consuming 160 watts, RX 6600 XT 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 SUPER offers a better deal than, Radeon RX 6600 XT by 15.6%. Here is more in depth overview of the price and used prices of GTX 1660 SUPER Price History and RX 6600 XT Price History