edmuss

I saw 25-30% GPU performance increase with my 3070 simply by switching the 3600@4.3ghz to the 5800x3D. That was on single player lightly CPU loaded missions as well. Obviously there is some uplift going from 3xxx to 5xxx Ryzen but it was still a big jump.

That's not how it works, reprojection will only disable once you are above refresh rate (plus overheads). Therefore using 90Hz refresh rate, anything more than 11ms and less than about 20ms will reproject to 45fps. Anything more than 20ms and less than about 30ms will reproject to 30fps. Steam only had the capacity to reproject down to 45fps, anything less than this and it's disabled entirely and it becomes very janky.

If you buy second hand try to get a photo of the serial number (on a sticker inside the body behind the gasket) so you can check any remaining warranty on the HP website. If it has some left make sure you get a copy of the original proof of purchase. Mine was second hand from eBay and it bricked itself (headset not cable), fortunately I had two weeks left on warranty and got a replacement. If you buy from cex then you'll have a solid warranty with them.

I use a thermalright truespirit 140 on mine (I hacked the bracket to fit the AM4 socket) with a single fan, it's silent and doesn't seem to struggle

It could be thermals causing my slightly slower peak speeds but winding the fans right up didn't improve it at all and temps aren't too bad at mid 60s. I'm not hugely concerned about it

Listed boost clocks are 4.5, mine rarely goes past 4.45. Don't get hung up on the clock speed, that extra cache really does good things with DCS.

You can't use PBO on the x3D, completely locked down although you can tweak the bclk. Even voltage adjustments aren't freely available (unless recent BIOS updates have unlocked them). There is a method of undervolting it in Windows using a separate app but it needs to be applied on every reboot; I have it set up on task scheduler to run every login. I think I've got -20mv across all cores and it reduced temperatures by a good amount allowing consistently higher boost clocks.

I think the frame of the monocle is appearing in both views because it requires a stereostropic image to give the depth perception but the symbology is only rendered in the one eye. I think rendering the symbology in the right eye would be correct for the ihads as it's a right hand eye unit (to the best of my knowledge).

That would make the prices a little more balanced, my point about the cockwombles in No.10 still stands though

That's because the government has systematically run the country and the pound into the ground for the last decade When I got my 3070 (November 2021) I used the FEpartalert telegram channel that binged when the UK/EU fe cards landed. I clicked the buy button within 20 seconds of the alert coming in and the stock was gone by the time I put my card details in! They're listing 4090fe cards on there so that's probably where I'd be looking if I were going to upgrade.

It'll drive the 4090 nicely

Not the case at all, I can read all text, guages and dials without having to lean in or zoom. Openxr seems to handle downsampling better than steamvr. Set the textures to low and they're unreadable.

There's still a fair gap (£200-300) between the 80ti and the 90 here in the UK, the fact our economy is on it's knees probably isn't helping In my experience DCS is typically using about 70-80% of the 12GB on the 80ti, obviously at times it goes up and at times it goes down. The 24GB cards will give a good buffer overhead though and in the past have hidden issues (like the reprojection VRAM bug) simply by having a massive pot of memory to play with

I went from a 3070fe that I ran with a significant overclock to a 3080ti and it's a good deal faster. With the 3070 I couldn't run keep the framerates consistently above the 60Hz refresh rate without having to run really low resolution, this was without MSAA so the shimmering was pretty bad. Essentially if I wanted decent resolution/settings I would need to use reprojection. Frametimes would be running from 13ms to 20ms typically. With the 3080ti I can enable MSAA (which is by far the best way to reduce shimmer), increase resolution and some settings and pretty much guarantee that I stay above refresh rate. Frametimes now run from 9ms to 15ms but generally around 12-13ms. From what I understand there is only around 5% difference between the 3080ti and the 3090. I went with an Asus Tuf 3080ti.

I use 2600 wide (about 0.82PD equivalent) and most things are on high, frametimes generally from 9ms to 13ms running the headset at 60Hz.

Well I don't see a change in FPS per se as I'm above refresh rate 95% of the time but last time I checked my normal appGPU frametimes are around 11-13ms (90-77 FPS) in openxr and 13-15 (77-67 FPS) in steamvr. Yeah, steamvr reprojection is still better for artifacting and computational overhead but hopefully this will improve in the future. Keeping above refresh is where it's at

Unfortunately I can't help you with that one I'm afraid. It might be the force steamvr switch on the DCS executable? edit: a 3 second Google search came up with the following: -

Curiously if I switch back to steamvr with identical settings I generally lose up to 10fps, this is in addition to the additional smoothness of openxr both with and without reprojection. I've read in the past that 10gb does struggle with DCS (particularly with steamvr over openxr), don't forget that the 10gb 3080 10gb also has a narrower memory bus width than the 12gb 3080/ti and 3090 so can't switch the data bank and forth so quickly; this is why the 12gb 3060 was an absolute farce. edit: @some1 were you using steamvr reprojection with your test scenario with the 3080 where it slowed to a crawl?

Don't rely on the VRAM usage shown by fpsvr or task manager as gospel, they only show the allocated not the acutal used. On my 12GB 3080ti I might typically see 12GB allocated according to task manager but openxr is measuring it's usage as 6-7GB. There are times where it will use all 12GB but generally it's much lower than allocated; VRAM usage is now a recordable metric in the openxr toolkit.

The tool doesn't autoupdate, if you open the switcher and there's an update available it will tell you but it's a manual thing. Out of interest, is your DCS install or the switcher running in program files at all?

Check out Thud's tuning guides, do all the system tweaks and the nvidia control panel stuff is in there as well I think.

Best to leave the openxr tools as default, leave the DCS pixel density at 1 (as per the instructions on page 1) and use the openxr toolkit to override the resolution to what you want. 105% would be approximately 3320 pixels wide.

@pognhek Have you set the quest2 to use openvr (steamvr) runtimes instead of the oculus runtimes, open composite hooks into the VR compositor when openvr runtime is active but will ignore the oculus runtime. I think because the oculus runtimes natively support openxr the toolkit and demo will work independently of DCS (because there is an active openxr runtime).

My white HP logo stopped coming on and gave a 7-13 error in WMRP. HP sent a V2 cable under warranty which didn't change anything so they changed the headset. It's been fine since but it was the headset itself that was dead. Here in the UK I needed to phone up the tech support and fight my way though the phone system menus to get to the right place - it wasn't as simple as you'd think, if I recall correctly it was something like workstations support that you had to go through for the VR headset team.

I was referring to the openxr toolkit specifically for that bit. MSFS supports openxr natively so there's no need for the open composite layer but the same still stands. You can use open composite to allow other headsets to use openxr in non-openxr native apps.