Yes, with regards to performance, Nvidia GeForce RTX 2060 SUPER outperforms, Radeon RX Vega 56 by 29.6%.
The RTX 2060 SUPER is more energy-efficient considering its peformance, consuming 175 watts to produce 3DMark score of 8781. By comparing its benchmark score to its power consumption, we get an efficiency score of 50.2. RX Vega 56's efficiency score is 32.3, 55.5% lower, making RTX 2060 SUPER the smarter choice in terms of power consumption.
When considering value for money, RTX 2060 SUPER offers a better deal than, Radeon RX Vega 56 by 230.0%. Here is more in depth overview of the price and used prices of RTX 2060 SUPER Price History and RX Vega 56 Price History