DLSS 3 available in VR yet and graphics card advice?

User Support Hub Virtual Reality (VR)
1

Hi, I’ve been using MFS with an Xbox Series X, but am keen to try it in VR with a gaming PC. I’m trying to work out what graphics card I can get/afford and am thinking of an Nvidia RTX 4070, 4070 ti or at an absolute push a 4080. I’m see DLSS 3.0 seems to make a huge difference to frame rates with flat screen games, and am thinking it would help considerably in VR. I’ve seen some videos of people using DLSS in VR which seems to make a good differnece to frame rates, but none of DLSS 3. My questions then are:

Is DLSS 3 available for VR in MFS (and if not when will it be)?

If it is, how much difference does it make?

Any comments on which of the above cards would get me reasonable experience with VR (planning to pair it with Ryzen 5 7600x, and 32GB DDR5)

Many thanks

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DLSS3 Frame Generation does not work in VR and likely never will. VR already does it’s own motion interpolation tuned for latency.

There is more detailed info about this in the openXR toolkit thread.

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Many thanks, that’s helpful.
I understand that DLSS 3 can be used to very good effect independent of frame interpolation (that is just the upscaling part without frame insertion).
I guess my hope is to figure out if the newer generation of Nvidia graphics cards (40 series) can offer significant performance boosts in VR with the latest generation of upscaling technology?

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DLSS3 Frame Generation does not and probably will never work in VR. The ordinary DLSS (upscaling) works in VR both in 30xx and 40xx series GPUs. There are not significant improvements to “ordinary DLSS” in 40xx GPUs, 40xx series is just generally faster and less power hungry vs. 30xx series. For example 4070Ti performs more or less like 3090, however 4070Ti has less of VRAM which affect performance negatively in some cases.

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I was very disappointed personally when I found out it doesn’t work in Vr. I would have almost certainly bought a 4 series card if it did.

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Thanks for that information - I think it answers my question. Am I right then in thinking that when DLSS is enabled in VR in MFS, that it’s effectively the newest version of DLSS (that is 3), but without the frame generation?

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I feel similarly, the results on a flat screen look to make a dramatic difference to frame rate with little quality loss. Makes me think maybe an AMD card with 20GB RAM might be a better better e.g. an RX 7900XT?

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Honestly maybe.

Even the normal/upscaling Dlss I find unusable due to smearing/ghosting on any glass instruments. I find it annoying in 2d but in Vr it drives me crazy. So I’m personally not locked in nvidia.

But your probably better off asking directly in the Radeon threads to actual owners. Last I heard vr had some issues on Amd but I don’t want to spread half/outdated knowledge. Also the additional vram may very well offset whatever slight dissadvantages radeons might otherwise have.

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Correct. It’s best to think of “frame generation” as a totally unrelated feature from “DLSS scaling”; they both use the “DLSS” branding but they are completely independent features and can be enabled or disabled separately from each other when they are available. “DLSS 3” doesn’t really mean anything specific, and should probably be avoided as a term.

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You are wrong, “DLSS 3” is even the official term used by nVIDIA itself for the combination of ALL currently available AI enhancement techniques from nVIDIA: Introducing NVIDIA DLSS 3 | GeForce News | NVIDIA

Means, while yes, frame generation is per se not related to the term DLSS (Deep Learning Super Sampling), it is still included into the DLSS 3 Package (along with nVIDIA Reflex and DLSS). You can howver use it independent of the image scaling parts of DLSS 3, as you wrote, and this leads to some confusion here and there…

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Yep, DLSS 3 = DLSS 2 + Frame Generation

1 Like
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Wow, that’s interesting so from a VR perspective DLSS 3 = DLSS 2.
It certainly has been confusing as a relative newcomer!!

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Thanks for that, it’s helpful information.
So have they actually improved the upscaling in DLSS 3, or is it the same as DLSS 3, just rebranded because of frame generation?

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Thanks for that. I’ll check out the AMD Radeon threads.

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I believe the visual quality isn’t any different purely on the upscaling, the improvement is with the additional cores in the 40 series cards doing the upscaling faster giving improved frame rates. There are a lot of variables when it comes to VR - the headset itself is a big factor. 30 series cards can give decent performance in VR as will the recent AMD cards but the general advice would be to go for the best 40 series card you can afford as brute force goes a long way to giving playable performance in MSFS VR.

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Thanks, that’s really interesting. I had assumed that the additional vram in the amd 7900 xtx would make it faster in VR than the RTX 4080, but I’m hearing that Nvidia’s AI processing power would offset this. Am I roughly understanding this right?

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More VRAM allows holding larger textures and other data structures in memory, for higher resolution imagery and effects. It doesn’t affect speed at all, unless you run out in which case everything grinds to a halt. :smiley:

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I hope this topic continues. I’m actually considering buying a prebuilt today (Memorial Day) from maybe IBuyPower. I really want the 4090 but the difference in price is a wow. I’m brand new to VR (Quest 2) and want the best performance BUT I’m not rich so don’t want to get the 4090 if I can be happy with a cheaper GPU.

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Thanks!, I guess the question then is how often would it run out with 16
GB RAM?

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I would image pretty unlikely with the current crop of headsets. If you did break this barrier with a higher resolution headset then you always have the option to lower the render scale which would reduce the VRAM usage.