RTX 3080 to RTX 5080 - VR (Quest 3) - Will I be able to see?

[SantasGolfClub]

I can't seem to find a valid subforum for hardware, but I am wondering if anyone knows - will I get a better picture if I upgrade my 3080 to a 5080, in VR using a Quest 3, with the goal to upgrade to a Pimax Crystal Light later in the year? But for now, if I got the 5080, would I see a significant (This is costing AU$2,000) improvement? I find that sitting (in VR) in a normal seated position, the instruments are 'blurry', and I need to lean in a bit to see the numbers accurately. Operating the DDIs is pretty much from memory, more than seeing the text next to each button.

Just wondering if the 5080 will allow me to slide up some settings, to get a sharper picture.

[draconus]

Are you already maxing Q3 out - high PD and top WiFi/cable? Because the card only allows for better performance if your older one was lacking and maybe cover some cases where new card supports better video codec. You can still try max settings on your current card and see if it still lets you play or is your CPU the bottleneck.

Also for DDIs make sure you have already set "Res. of cockpit displays" in DCS options to 1024.

What AA settings are you using? Any DLSS will worsen the quality. Use DLAA instead and add some sharpening to it. N/A to MSAA, which is good quality but shimmering a lot.

For sure 5080 will help with your new Crystal HMD.

Sub is here: https://forum.dcs.world/forum/302-virtual-reality/

[SantasGolfClub]

I'm using a Wifi 6 router; however, it is the home access points (TPLink Deco Mesh). I have a small travel wifi router. I *think* it's wifi 6. I can maybe connect that to my wired router, and create it as a separate "DedicatedWifi" and only allow my Quest 3 on that. That may work? Does wired reduce compression, and maybe I should get a cable? Or should Wifi6, clean, make life better. I assume the freeze up, and then the weird wobble (Seems like it hs buffered all the picture and head movement while frozen and tries to catch up) would be wifi related?

Will check those settings you mentioned.

And thanks for the link to the VR section. Helpful!

[sleighzy]

If you are using DLSS, or decide to try it, then use the DCS config for controlling the preset, and the ability to not have this applied to MFDs.

Add the below line to the C:\Users\username\Saved Games\DCS\Config\autoexec.cfg file, create it if it doesn't already exist.

DLSS_Preset = 'K'

The additional optional line below can also be added to that file. This will bypass the HUD and MFD for DLSS, means greater control if you'd like to use DLSS4 for the game, but hate ghosting on the MFDs and don't want to apply to those. Best of both worlds.

HUD_MFD_after_DLSS = true

Check your Meta app as well to see what you've set the resolution slider to, and increase that as needed, e.g. 1.3, 1.5 etc. The fact that can hardly see the MFDs sounds like your settings haven't been tuned / pumped up.

[draconus]

8 hours ago, SantasGolfClub said:

I have a small travel wifi router. I *think* it's wifi 6. I can maybe connect that to my wired router, and create it as a separate "DedicatedWifi" and only allow my Quest 3 on that. That may work?

I don't know if your wifi router and connection is good enough. The best option is to have high bandwidth wifi 6E AP connected by ethernet cable to your PC and dedicate this wifi to Q3 only. Make PC use another wifi for the internet connection then.

Wired by USB-C is another option but choose high bandwidth (2-5Gbps) one.

[LucShep]

On 7/9/2025 at 2:09 AM, SantasGolfClub said:

I can't seem to find a valid subforum for hardware

 

https://forum.dcs.world/forum/57-pc-hardware-and-related-software/

[Mr_sukebe]

To answer the OPs question, based upon my own experiences of moving from a 3080Ti to a 5080.  Rest of my PC is 7800x3d/64GB ram:

• Do ensure that you've tidied up your VRAM use (e.g. disable Oculus home, use VRemptyHangar.  Having done that, I've not seen more than 12GB of VRAM use with my 5080.  The 3080 would on some map/aircraft combinations could therefore be VRAM saturated, which leads to some very unpleasant stutters
• The 5080 is a good deal faster in general visual processing, you'll notice that
• The 5080 is a lot faster on sourcing data to and from RAM, again reducing stutters
• None of the above will make the slightest different to the legibility of the cockpit of your aircraft.  That's dealt with by selecting the cockpit resolution in DCS and any super-sampling that you might also add in VR.  The key point being that the performance enhancements from the move to the 5080 will allow you to run higher cockpit resolutions and super-sampling without completely tanking your frame rates.

For myself, my frame rate is now mostly 72fps in my Quest Pro and with "good" visuals.

[SantasGolfClub]

18 hours ago, Mr_sukebe said:

Do ensure that you've tidied up your VRAM use (e.g. disable Oculus home, use VRemptyHangar.

I'll ChatGPT how to do that. I haven't done any changes, so maybe this will help. (My 5080 arrives Monday)

18 hours ago, Mr_sukebe said:

The 3080 would on some map/aircraft combinations could therefore be VRAM saturated, which leads to some very unpleasant stutters

Yes, I got the Performance Manager up last night, and noticed the VRAM on the card flat lining at 100%, CPU around 40%, GPU around 90%. That's in an Apache, and it was awful. Wobbly, like looking in jelly. Freezes etc. I hope the 5080 helps that. In the F/A-18, it smoother. Huey seems most smooth.

Thanks for the help. Off to see how to disable Oculus Home and see what VRemptyHanher is.

[sleighzy]

1 hour ago, SantasGolfClub said:

and see what VRemptyHanher is.

This mod here https://www.digitalcombatsimulator.com/en/files/3336353/

[draconus]

My settings tested last night with Q3 on cable:

- Oculus Link: 80Hz/1.4x, quality preference

- DCS: PD 1.0, DLAA +autoexec.cfg:

DLSS_Preset = 'K'
HUD_MFD_after_DLSS = true

Never seen better image quality before in this HMD

So if your Ryzen is good enough (should be) you'll be fine with your 3080 apart from overfilling 10GB VRAM. My 4070S is at similar performance level but CPU is lacking.

Edited July 15 by draconus

[SantasGolfClub]

Oh wow!

I just copied you and what a difference! I’m not sure what fixed it. I get a little bit of stutter now and again. When I load my PCs performance monitor, VRAM maxes out. GPU at 90%, CPU around 40%

but I feel like it’s a bit sharper. Especially the cockpit. I think it is. It seems like it. I feel I don’t need to lean in and see DDI text. It’s not 2D sharp. But it’s definitely readable. 
 

That is so much of a help!

And my 5080 arrives Monday.

[Shahriar0]

On 7/11/2025 at 1:28 AM, SantasGolfClub said:

Thanks for the help. Off to see how to disable Oculus Home and see what VRemptyHanher is.

 

Regarding the empty hangar, if you have not researched it yet, here is the file I use to rename/copy to "~\DCS World\Scripts\DemoScenes\sceneVR.lua" to empty the VR hangar (backup original file before copying although a simple repair would restore it too.)

I used to have a collection of several planes in my favorite liveries before I settled to an empty hangar myself.

sceneVR - Empty Hangar.lua

Edited July 17 by Shahriar0

[Mr_sukebe]

Take a scan here, might help: