No, in terms of performance, Nvidia GeForce GTX 1660 SUPER is slower than AMD Radeon RX Vega 56. AMD Radeon RX Vega 56 outperformes Nvidia GeForce GTX 1660 SUPER by 11.5% in 3Dmark benchmark.
The GTX 1660 SUPER is more energy-efficient considering its performance, having power consumption of 125 watts and a 3DMark score of 6078. By comparing its benchmark score to its power consumption, we get an efficiency score of 49. RX Vega 56's efficiency score is 32 .So GTX 1660 SUPER leads by 53.1%, making it the smarter choice in terms of power consumption.
When considering value for money, GTX 1660 SUPER offers a better deal than, Radeon RX Vega 56 by 180.0%.