No, in terms of performance, AMD Radeon RX 6600 is slower than, AMD Radeon RX 7800 XT by -143.2%.
When it comes to power efficiency, RX 6600 falls behind with an efficiency score that is 61.8, -18.1% lower than that of RX 7800 XT 75.4. Consuming 263 watts, RX 7800 XT has better power consumption to peformance ratio. The efficiency score is calculated by comparing the benchmark score with power consumption
When considering value for money, RX 6600 offers a better deal than, Radeon RX 7800 XT by 11.4%. Here is more in depth overview of the price and used prices of RX 6600 Price History and RX 7800 XT Price History