Yes, with regards to performance, Nvidia GeForce RTX 2070 outperforms, GeForce GTX 980 Ti by 57.6% in 3Dmark benchmark.
The RTX 2070 is more energy-efficient considering its performance, having power consumption of 175 watts and a 3DMark score of 9129. By comparing its benchmark score to its power consumption, we get an efficiency score of 52. GTX 980 Ti's efficiency score is 23 .So RTX 2070 leads by 126.1%, making it the smarter choice in terms of power consumption.
When considering value for money, RTX 2070 offers a better deal than, GeForce GTX 980 Ti by 100.0%.