I don’t anticipate that Intel’s Arc series of GPUs will be meaningful to VR or have much impact in gaming for at least a number of years. These GPUs are only able to challenge the low to midrange of what nVidia and AMD have to offer. And the support for them from games is going to be poor. Some games will work fine, some will have problems. And the ones that have problems won’t be very motivated to fix them for Arc.
In addition, Arc is arriving just as the GPU shortage is ending and seems to actually be about to turn the other way with a flood of used GPUs on the market which are, in general, more powerful than the Arc GPUs despite being older. Intel really missed the window where the demand for any GPU was very high. They could have entered with a splash a couple of years ago.
Anyway, I expect the primary market for Intel Arc will be business machines and cheap pre-mades that aren’t really intended for gaming. At least at first. If Arc is able to get penetration anywhere, it’s going to be there. And if it can get a foothold there, it may eventually start making inroads into gaming and VR later on.
But as it stands right now in 2022, I can’t imagine why anyone looking to build a gaming PC would rush out to pick up an Arc A750 rather than choosing an nVidia or AMD GPU. And anybody who does do that is going to be in for a lot of hurt with compatibility problems with games and other issues.
As for the relevance of the Intel Arc A750 to Pimax, I think there is probably none. Pimax is lagging on support for AMD right now. Support for Intel Arc would be even lower priority. And even if Pimax wanted to put the effort into making their VR headsets work with Arc, they’d be underpowered in terms of handling the upcoming Reality line (Crystal, 12K, etc). I would actually prefer that Pimax didn’t divert their resources onto supporting Arc and used their resources instead for more meaningful development of their products.
Intel Arc may possibly not get traction at all and could just die after a while. But if it survives, I think it could become a serious contender at some point. But it will take years to get there.