GTX 1660 vs RX 6400

Yes, with regards to performance, Nvidia GeForce GTX 1660 outperforms, Radeon RX 6400 by 50.6%.

When it comes to power efficiency, GTX 1660 falls behind with an efficiency score that is 45.5, -33.5% lower than that of RX 6400 68.3. Consuming 53 watts, RX 6400 has better power consumption to peformance ratio. The efficiency score is calculated by comparing the benchmark score with power consumption

GTX 1660 price to performance rating is lower than RX 6400's by -8.0%. Here is more in depth overview of the price and used prices of GTX 1660 Price History and RX 6400 Price History