That's not true. Turing gpus have dedicated RT cores and Tensor cores. When DLSS and RTX are used together we could see better RTX performance. When that will be, who knows?
There is a LONG way to go before we see this, although I suspect it will be never with 20xx. If BFV is anything to go by, the ground that needs to be covered between unacceptable and acceptable FPS is absolutely VAST. Just look at the difference when RTX is enabled... it's shockingly bad even with a 2080Ti. No one wants that, least of all 1080p gamers who are the most fussy when it comes to maintaining high FPS! At 1440p and above, forget about it. Plus you have to keep in mind BFV is just doing reflections... there's no ambient occlusion or any other fancy RTX stuff going on. It's JUST shiny surface reflections, and the game is crippled at 1440p and 4K, only barely playable at 1080p. DLSS isn't going to help very much here, it really isn't, nevermind when you start adding even more RTX stuff! Devs need to figure out a way to leverage this tech significantly better, although I don't see any evidence to suggest that's even possible right now. If they can't, this gen of cards is completely useless for RTX features before they've even got off the ground. The 2080Ti will remain a great 4K card (at a price), while the 2080 and below will be little more than expensive Pascal equivalents with additional tech that's good for basically nothing.
I don't think ray tracing is a lost cause... but the 20xx cards are in respect to achieving it to any seriously acceptable standard. Where we go from here I don't know, but it's a bleak road for anyone expecting RTX to deliver in the short term.
Of course, ray tracing is always going to result in an FPS hit vs traditional rasterisation... but for it to succeed it's going to have to come at a point where this doesn't matter. For example, a game could be hitting north of 200fps with RTX off at 1440p, but if it's still getting 100 FPS with RTX on at 1440p then that's hardly going to cripple the gaming experience, and if said game is FULLY ray traced, it would definitely be worth it. This is years away however.
My bigger concern is the impact all this has on future GPU sales and what potential damage Nvidia have done in regard to selling the gaming public on ray tracing, when they've utterly failed to deliver it this time around... to the point where it feels like we've been fed a load of false promises and lies. Is anyone really going to take Jensen at his word next time he steps on stage to deliver a keynote??

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