Yes, with regards to performance, Nvidia GeForce RTX 4060 outperforms, Radeon RX 6400 by 193.5%.
The RTX 4060 is more energy-efficient considering its peformance, consuming 115 watts to produce 3DMark score of 10630. By comparing its benchmark score to its power consumption, we get an efficiency score of 92.4. RX 6400's efficiency score is 68.3, 35.3% lower, making RTX 4060 the smarter choice in terms of power consumption.
When considering value for money, RTX 4060 offers a better deal than, Radeon RX 6400 by 28.6%. Here is more in depth overview of the price and used prices of RTX 4060 Price History and RX 6400 Price History