In MSFS though, get the cheaper card and a better CPU imo, CPU seems to be the limiting factor more.
I can tell you that in my case it is 100% GPU Bound in VR. You can check in developer mode with “Show FPS” enabled - tells me right away that my GPU is maxed out… VR is just a massive challange for any GPU.
I mean, 4k is nice and all - but in VR your card needs to render two different imiages for stereoscopic 3d and than your VR Headset comes along and says: Better make this 2x 2160 x 2160.
Your CPU just goes: Up to you Buddy and raises eybrowes at your GPU.
But dont get me wrong - when I run Half Life Alyx on this GPU - I can tune it to the second highest detail setting and it runs great. So I absolutely agree that it also depnds on the VR implementation in the title.
(Keep in mind, in a Game in VR the designer can choose to only expose you to a limited surrounding (in a building, in an alley, etc…), while in MSFS 2020 you always see the world oustide of the aircraft - not really compareable. So I do not meant to say they implemented VR in a bad way. All I want to say is - VR in MSFS is awesome, but very very hardware hungry in oder to work nicely.