No, in terms of performance, AMD Radeon RX 7800 XT is slower than AMD Radeon RX 6900 XT. AMD Radeon RX 6900 XT outperformes AMD Radeon RX 7800 XT by 3.9% 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. RX 6900 XT's efficiency score is 69 .So RX 7800 XT leads by 8.7%, making it the smarter choice in terms of power consumption.
When considering value for money, RX 7800 XT offers a better deal than, Radeon RX 6900 XT by 95.0%.