No, in terms of performance, Nvidia GeForce GTX 1660 Ti is slower than AMD Radeon RX 5700 XT. AMD Radeon RX 5700 XT outperformes Nvidia GeForce GTX 1660 Ti by 47.7% in 3Dmark benchmark.
The GTX 1660 Ti is more energy-efficient considering its performance, having power consumption of 120 watts and a 3DMark score of 6373. By comparing its benchmark score to its power consumption, we get an efficiency score of 53. RX 5700 XT's efficiency score is 42 .So GTX 1660 Ti leads by 26.2%, making it the smarter choice in terms of power consumption.
GTX 1660 Ti price to performance rating is lower than RX 5700 XT's. RX 5700 XT offers 140.0% better value fo money.