2080Ti vs RTX 3090 for VR

[Lurker]

I wish I had some of your disposable income. I have to take the "budget" option with the 6800XT, not that it's going to be cheap by any measure or really a "budget" card. :)

[dburne]

I wish I had some of your disposable income. I have to take the "budget" option with the 6800XT, not that it's going to be cheap by any measure or really a "budget" card. :)

 

I went more years than I care to think about doing the same with budget options. Nothing wrong with that!

I am now retired and probably should not be spending this much, but thought oh well lol.

[FoxTwo]

I wish I had some of your disposable income. I have to take the "budget" option with the 6800XT, not that it's going to be cheap by any measure or really a "budget" card. :)

 

I don't think you should feel too bad, I doubt very much that DCS is capable of actually exercising a 3090 properly. A 3080 or 6800XT will get you 95%+ of the way there and anyone stating any different is selling something - possibly just to themselves.

[dburne]

 

I don't think you should feel too bad, I doubt very much that DCS is capable of actually exercising a 3090 properly. A 3080 or 6800XT will get you 95%+ of the way there and anyone stating any different is selling something - possibly just to themselves.

 

Yep very good point.

If the 3080's had a little more Vram I would have been mighty tempted instead of this 3090. I just did not feel good going backwards from the 11GB my 2080 Ti has.

But that was just me. I had the funds so went for the 3090.

[tigger6]

In the end I sold the 3080 I got for about $1100 and will see if I can get a 6900xt instead. Though that might force me to replace my brand new 10700k and motherboard :/

[Motomouse]

The 3080 is now available sometimes at different shops. But not attractive any longer at 10 GB VRAM and 900 bucks. I will aim for a 6800XT or a 3080Ti. If I dont get one of those initially I just fly a little bit more on my trusty 1080Ti and save a lot of money :-). Prices for the 3080 will drop soon a lot, no need to hurry if you bet on this card.

[imacken]

How exactly did you measure this in DCS?

[Supmua]

The 3080Ti should be announced in Jan, that GPU would be more competitive with AMD’s top offering. It is also up in the air regarding AMD cards’ availability at launch. My guess is that they will go OOS as quickly as the NVIDIA GPUs.

[dburne]

Been away from DCS flying for a bit so am a bit rusty.

Wanted to do a quick check with my new EVGA 3090 Ti FTW3 Ultra.

Loaded up the Hornet carrier takeoff mission in the Persian Gulf. My settings were as they have been which are fairly high.

On the carrier through launch, flying low over water and then low over land and a small town, fps stayed at max of 80 fps for Rift S the whole time.

I then loaded up the Supercarrier take off mission.

On supercarrier with guys around, fps dropped to 40 (ASW) while on the carrier.

 

Like I say just a quick check, it appears the card should do pretty good with DCS. Certainly an improvement over the 2080 Ti.

Not going to spend any more time with the Rift S testing as I have a Reverb G2 arriving tomorrow sometime.

Once I have it up and running good I will then spend some more time refreshing my memory on the things I need to know with the Hornet.

[speed-of-heat]

@dburne what was it like in the pattern for the carrier, or was it only on the deck when you went into ASW?

[parsonsproject]

Some feedback for those looking to upgrade their GPU, I have a 3080 and as noted by others it's not going to give you under 11ms at 90hz, even on simple scenarios. I have a 10600k at 5.0ghz all core and getting 0 cpu miss, so not CPU bound at all.

 

I can get 90hz under 11ms if settings are way down in DCS across the board, with 1.0 PD and like 50% steam SS, which is of course aliased and blurry as hell. With DCS settings and steamvr set to decent visuals to actually read cockpit stuff it's still 15-18ms timing I'd say and a bunch of reprojects. Flying in straight line it's ok, but any quick maneuvers or looking around it does nauseate with the skips.

 

Seeing other 3090 ppl also not even hitting under 11ms and 90hz kind of confirms this game is just not optimized.

 

I may try playing with the shader mod to see how that affects things, haven't gone down that road yet, but just an FYI for y'all that a new next gen GPU will not give you crisp visuals under 11ms for 90hz... though I guess if you're doing 45hz with a limit of 22ms then it would be able to handle that, based on my 15-18ms timing which is with high textures/shadows, 150% SS and 1.5 PD, 8x AF, it's pretty, but choppy at 90hz.

 

<EDIT> This is with a vive pro, your results may vary on a more positive note if you have a headset with lower native resolution. But with any vive pro, index, reverb g2 level headset these GPUs can't handle 90hz/11ms on DCS.

[dburne]

@dburne what was it like in the pattern for the carrier, or was it only on the deck when you went into ASW?

 

I did not go through the pattern and landing.

[speed-of-heat]

 

I did not go through the pattern and landing.

 

fair enough, thanks for responding Don

[imacken]

Some feedback for those looking to upgrade their GPU, I have a 3080 and as noted by others it's not going to give you under 11ms at 90hz, even on simple scenarios. I have a 10600k at 5.0ghz all core and getting 0 cpu miss, so not CPU bound at all.

 

I can get 90hz under 11ms if settings are way down in DCS across the board, with 1.0 PD and like 50% steam SS, which is of course aliased and blurry as hell. With DCS settings and steamvr set to decent visuals to actually read cockpit stuff it's still 15-18ms timing I'd say and a bunch of reprojects. Flying in straight line it's ok, but any quick maneuvers or looking around it does nauseate with the skips.

 

Seeing other 3090 ppl also not even hitting under 11ms and 90hz kind of confirms this game is just not optimized.

 

I may try playing with the shader mod to see how that affects things, haven't gone down that road yet, but just an FYI for y'all that a new next gen GPU will not give you crisp visuals under 11ms for 90hz... though I guess if you're doing 45hz with a limit of 22ms then it would be able to handle that, based on my 15-18ms timing which is with high textures/shadows, 150% SS and 1.5 PD, 8x AF, it's pretty, but choppy at 90hz.

 

<EDIT> This is with a vive pro, your results may vary on a more positive note if you have a headset with lower native resolution. But with any vive pro, index, reverb g2 level headset these GPUs can't handle 90hz/11ms on DCS.

To be honest, seems like something is wrong. You can’t get 11ms on a Vive Pro? With the settings you suggest, I can get that on a Reverb and my 2080Ti!

 

[speed-of-heat]

Some feedback for those looking to upgrade their GPU, I have a 3080 and as noted by others it's not going to give you under 11ms at 90hz, even on simple scenarios. I have a 10600k at 5.0ghz all core and getting 0 cpu miss, so not CPU bound at all.

 

I can get 90hz under 11ms if settings are way down in DCS across the board, with 1.0 PD and like 50% steam SS, which is of course aliased and blurry as hell. With DCS settings and steamvr set to decent visuals to actually read cockpit stuff it's still 15-18ms timing I'd say and a bunch of reprojects. Flying in straight line it's ok, but any quick maneuvers or looking around it does nauseate with the skips.

 

Seeing other 3090 ppl also not even hitting under 11ms and 90hz kind of confirms this game is just not optimized.

 

I may try playing with the shader mod to see how that affects things, haven't gone down that road yet, but just an FYI for y'all that a new next gen GPU will not give you crisp visuals under 11ms for 90hz... though I guess if you're doing 45hz with a limit of 22ms then it would be able to handle that, based on my 15-18ms timing which is with high textures/shadows, 150% SS and 1.5 PD, 8x AF, it's pretty, but choppy at 90hz.

 

<EDIT> This is with a vive pro, your results may vary on a more positive note if you have a headset with lower native resolution. But with any vive pro, index, reverb g2 level headset these GPUs can't handle 90hz/11ms on DCS.

 

i get better performance than that on my 1080ti and 9700k with my reverb... so im confused ... as we are driving similar numbers of pixels by the time your run at 1.5/150, are you trying to run without Motion smoothing/vectoring ?

[parsonsproject]

To be honest, seems like something is wrong. You can’t get 11ms on a Vive Pro? With the settings you suggest, I can get that on a Reverb and my 2080Ti!

 

This is without any shader mod stuff? I would love to see a screenshot of your steamvr advanced timing graph and what SS and PD you are at.

[parsonsproject]

 

i get better performance than that on my 1080ti and 9700k with my reverb... so im confused ... as we are driving similar numbers of pixels by the time your run at 1.5/150, are you trying to run without Motion smoothing/vectoring ?

 

I've never run motion smoothing, I did turn it on just now to test, it does kind of clear up some jerkiness, but it's still 15+ms response time. But same as the other guy, I'd be curious to see advanced frame timing graphs and what your SS and PD are set to?

 

EDIT, you're probably running shader mods I'm guessing, so it may not be apples to apples on comparing performance. This is all with 0 shader mods / config file tweaking on my end.

[Supmua]

There're too many variables in terms of how we set up our PCs. And this is why we should use a standard preset rather than custom settings when comparing fps and frametime. Just use the built-in VR preset, PD 1.0, SS 100%, motion smoothing off, default NVIDIA/AMD settings, when doing a comparison, so everybody has the exact same parameters to minimize the differences on the software side. Also kill all the background apps or processes that you don't need. This way you don't see results that are way above or below expectation from people with similar PC specs.

 

I have a plan to do a systemic VR analysis using objective criteria (numbers rather than subjective feeling) when I get my 3090. Which DCS setting has more impact on CPU vs GPU, %improvement from 2080Ti to 3090 with various settings, optimal setting for fps, etc. Might not have time to do it properly though depending on how crazy the COVID situation is--and it is getting crazy around here.

[imacken]

 

This is without any shader mod stuff? I would love to see a screenshot of your steamvr advanced timing graph and what SS and PD you are at.

 

The shaders mod is a waste of time IMO. I was talking about him turning settings way down to 50% SteamVR SS.

[speed-of-heat]

 

I've never run motion smoothing, I did turn it on just now to test, it does kind of clear up some jerkiness, but it's still 15+ms response time. But same as the other guy, I'd be curious to see advanced frame timing graphs and what your SS and PD are set to?

 

EDIT, you're probably running shader mods I'm guessing, so it may not be apples to apples on comparing performance. This is all with 0 shader mods / config file tweaking on my end.

 

I am running shader mods, but even without, I can run at a steady 45 fps, running without motion smoothing is just asking for the vomit comet... It should only be turned off for perf testing., ss is set to 100 and pd 1 my frame times for cpu are between 6and 8ms and my GPU varies from 10 to 18ms, with the shader mods, and about 2 -3ms more without..,

 

 

[parsonsproject]

 

I am running shader mods, but even without, I can run at a steady 45 fps, running without motion smoothing is just asking for the vomit comet... It should only be turned off for perf testing., ss is set to 100 and pd 1 my frame times for cpu are between 6and 8ms and my GPU varies from 10 to 18ms, with the shader mods, and about 2 -3ms more without..,

 

 

Ok so you're comparing 45hz against 90hz. When I say I can keep under 11ms with SS at 100% with lower PD, that is at 90hz, 90fps, not 45hz. 45mhz with motion smoothing sure your target for no reprojects is 22ms, but 45hz with interpolated frames is not buttery smoothness, not even close to a 90hz <11ms.

 

I like the thought of standardized settings to test/compare against, but there's no benchmark test in DCS that I'm aware of, so tough to do.

 

For comparisons sake I can tell you my 3dmark timespy score (free online demo anyone can do), timespy score=15859, graphics score=18362. This is stock 3080 ftw3 ultra with 5.0ghz i5 10600k on ddr4 4400@18-18-18-38. With 18362 timespy graphics score you will still not be at a visually appealing level in DCS at 90hz while under 11ms. Yes you could easily stay under 22ms for a 45hz motion smoothed experience, but for those who prefer 90hz under 11ms with acceptable visuals, 3080 won't get you there, though I don't blame the card here...

[speed-of-heat]

No I’m comparing smooth with not smooth... your shout, motion smoothing doesn’t force 45hz it forces 90 or 45hz,..

[Gunnars Driver]

motion smoothing doesn’t force 45hz it forces 90 or 45hz,..

 

Theres different options:

motionsmoothing = On casuses motionsmoothing on always, only 45fps.

Auto =motionsmoothing on between 89 down to 45.

 

I only use auto.

 

 

[speed-of-heat]

I use auto in steam, and in wmr allow steam to take charge.

[imacken]

Minor correction guys, motion smoothing doesn’t force 45Hz or 90Hz, it forces 45 or 90 fps at 90Hz.