Of course it’s subjective regarding the quality/performance tradeoff - here’s one person’s account
https://us.forums.blizzard.com/en/wow/t/52ghz-10900k-3090-raytracing-4k-5k-series-ryzen/713983
They claim an overclocked 10900k with an RTX 3090 and get between 30-40fps at 4k with a 40% performance cost for RTX.
Up to you if that’s worth the trade off. It’s not 10fps, by the way.