Forgot to include another important point - namely performance - MRTV measured using the OpenVR benchmark and a RTX 2070 Super video card (SteamVR res 100% used back then, the G2 is probably set to a much higher standard res these days and would provide much lower performance than shown below):
SteamVR res 100% OpenVR Benchmark Performance
https://www.reddit.com/r/oculus/comments/icxdlj/hp_reverb_g2_performance_comparison/
This benchmark is not supporting native Oculus drivers, which may explain why Rift CV1 isn't getting more than 46 fps compared to OG Vive. The SteamVR 100% res is similar to using Rift CV1 ss 1.4, so it's not the same as using Rift CV1 ss 1.0. Using SteamVR 100%, here the CV1 was even 21% faster than Rift-S, and 31% faster than Index and Vive Pro.
Much more important are games supporting native Oculus drivers and especially ASW 2.0, which make 45 fps look nearly exactly like 90 fps. A good example would be when I bought Trover Saves the Universe on Steam - and performance was really bad. I refunded and bought the game in the Oculus Store, which back then was the only way to get native Oculus driver support in that game. It was another night and day experience - felt like I just upgraded my GTX 1080 to an RTX 2080 Ti, lol. With the Steam version I got many reprojections and the game wasn't smooth, but it was smooth as butter with the Oculus version - even forcing ss 2.0. That's thanks to the full support of ASW 2.0 - more info about ASW 2.0 here:
https://www.oculus.com/blog/introducing-asw-2-point-0-better-accuracy-lower-latency/
To this day, I have not been able to find solid evidence that even Quest 2 supports ASW 2.0 - I know that ASW 1.0 should be supported, but I'm not sure about ASW 2.0, also when using Virtual Desktop instead of Link. ASW 2.0 literally makes you rig twice as fast - because it makes 45 fps look like solid 90 fps (or very close) - thus the importance of ASW 2.0, which still generally is a lot better than motion smoothing (Steam), should not be underestimated - ASW 2.0 allows for high levels of super sampling without games and apps becoming unplayable or unenjoyable.
Do let me know if someone knows if Quest 2 fully supports ASW 2.0! 🙂
The take home message: using Rift CV1 you may be able to get an awesome VR experience using a modest (medium-range) gpu, while using more high-res lcd hmds (like Index) require more gpu power to ensure 90+ fps in order to provide a great experience.
