Yes, with regards to performance, Nvidia GeForce RTX 2060 SUPER outperforms, Radeon RX 6400 by 142.4%.
When it comes to power efficiency, RTX 2060 SUPER falls behind with an efficiency score that is 50.2, -26.6% 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
When considering value for money, RTX 2060 SUPER offers a better deal than, Radeon RX 6400 by 22.2%. Here is more in depth overview of the price and used prices of RTX 2060 SUPER Price History and RX 6400 Price History