Yes, with regards to performance, Nvidia GeForce RTX 2060 outperforms, Radeon RX Vega 56 by 12.2%.
The RTX 2060 is more energy-efficient considering its peformance, consuming 160 watts to produce 3DMark score of 7601. By comparing its benchmark score to its power consumption, we get an efficiency score of 47.5. RX Vega 56's efficiency score is 32.3, 47.2% lower, making RTX 2060 the smarter choice in terms of power consumption.
When considering value for money, RTX 2060 offers a better deal than, Radeon RX Vega 56 by 120.0%. Here is more in depth overview of the price and used prices of RTX 2060 Price History and RX Vega 56 Price History