Let's break that down a little bit and, I just want to point out that I was not making a case for 20GB Vram, I was just pointing out that due to the way the 7900XT card is engineered, with its bus speed width, that you are getting more performance for your money because there is less of a bus speed limitation, there will be no driver update that can fix the 4070ti's performance at 4k or, VR or, Ultrawide resolutions. It is permanently crippled because of the bus speed, not the Vram size.The 7900XT performs closer to Nvidias 70 class which sit in the 450-550 bracket
Bus width is good but it costs extra money to engineer wide bus' into a GPU, that's why Nvidia has not given the 4070ti the bus it needs.
It's not a great game but the Callisto Protocol is one of the first AAA Unreal Engine 5 games and as such, represents a line in the sand of how many UE5 games are going to run over the next 7 years.
Someone said above that the 7900XT is an engineering failure but if Callisto Protocol (and Red Dead Redemption 2 under Vulkan) are signs of things to come and you want to game at 4k/Ultrawide/VR, the 4070ti just runs out of bus speed.
The actual performance difference between the 4070t and the 7900XT at 4k/ultrawide/VR is 'probably' about 20% in favour of the 7900XT, no matter what Nvidia do with the 4070ti drivers or, how much certain devs. cripple their engines.
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