No, in terms of performance, AMD Radeon RX 7800 XT is slower than Nvidia GeForce RTX 3090 Ti. Nvidia GeForce RTX 3090 Ti outperformes AMD Radeon RX 7800 XT by 9.6% in 3Dmark benchmark.
The RX 7800 XT is more energy-efficient considering its performance, having power consumption of 263 watts and a 3DMark score of 19839. By comparing its benchmark score to its power consumption, we get an efficiency score of 75. RTX 3090 Ti's efficiency score is 48 .So RX 7800 XT leads by 56.3%, making it the smarter choice in terms of power consumption.
When considering value for money, RX 7800 XT offers a better deal than, GeForce RTX 3090 Ti by 178.6%.