Yes, with regards to performance, Nvidia GeForce RTX 2080 SUPER outperforms, Radeon RX Vega 64 by 57.9%.
The RTX 2080 SUPER is more energy-efficient considering its peformance, consuming 250 watts to produce 3DMark score of 11631. By comparing its benchmark score to its power consumption, we get an efficiency score of 46.5. RX Vega 64's efficiency score is 25.0, 86.3% lower, making RTX 2080 SUPER the smarter choice in terms of power consumption.
RTX 2080 SUPER price to performance rating is lower than RX Vega 64's by -7.1%. Here is more in depth overview of the price and used prices of RTX 2080 SUPER Price History and RX Vega 64 Price History