GTX 1080 performance discussion

[Sticky Honeybuns]

First my rig,

I7 4790k @4.2ghz
EVGA GTX 1080 FTW @ 1.9ghz
32GB 1600 RAM
1200w PSU
Samsung EVO SSD for OS and some games like Vivecraft
4TB divided between 3 HDD 7200 rpm ( for my steam catalog)
AsRock z97 extreme6 mobo
Gtx 670 4gb(physx)-about to sell but using it like this for now
Noctua NHd14 cooler

I'm curious as to the performance of other 1080's. I am pretty disappointed in the performance of my 1080 in VR. I think my expectations are just to high but I want other opinions as well.

Games I have tried on my Vive

Portal stories ( ran flawlessly)

The Lab (runs pretty good with a frame skip about every 30 seconds or so)

Brookhaven experiment (runs good, have shadows on and resolution at 150, tried 200 and get some frame skipping so I turned it down)

Vivecraft (runs good but get frame skipping when loading in a new scene during the game, annoying but not game breaking)

Raw Data (runs like crap, can only turn ss to 1.1 with most settings at epic, even with lower settings i can't get much higher then 1.1 ss without major frame skipping)

Zombie training simulator (runs perfect)

The gallery ( runs great but have not turned on SS yet)

Tilt brush ( runs perfect)

VR funhouse ( runs perfect on the 1080 suggested settings)

My main issue is just the random frame skipping and was curious if other 1080 owners have the same results. With how much Pascal was pushed as the VR cards I am just a little disappointed by anything less than perfect.

My frame skipping is all happening on the GPU as confirmed by the performance monitor in steam.

Thanks

[--ranXerox--]

Yeah we need to talk. Amd 8320 black edition on a gigabyte motherboard with DDR 3 16gb

Supersampling fine at 2 in steam vr configuration file.

Can run all games fine.

Can run elite dangerous fine

Can run project cars fine

Can run raw data and add 1.4 so on top of the already ss at 2 through steam vr. All settings maxed minus antiliasing for better visual game play.

Something is wrong with your setup

[--ranXerox--]

Start by removing the 670gtx

[BOLL]

When I upgraded to a GTX970 I used my old 560ti for PhysX, during testing I noticed I actually got lower performance output doing that, things ran much better on the 970 alone :P So yeah, do what --ranXerox-- said, or at least disconnected it from PhysX ;)

[RED-FROG]

The 1080 is a beast of a card.

There are no recent PhysX titles (if any worthwhile) to begin with, so pull that poor card out. It may also block/alter the airflow a little and reflects heat.

Also, monitor the temperatures and check for gpu throttling.

The Lab (and overall VR games...) ran awesome even on my old R9 290x plus a little ss...

[fonziebulldog]

Well, i really like the GTX 1080 Founders Edition.Playing Elite Dangerous with that is like looking at a movie on a good screen.I also think my GTX 980 is doing a great work with HTC Vive.

[--ranXerox--]

no kidding, 4k elite dangerous is amazing.

[Sticky Honeybuns]

Yea, I pulled the gtx 670 shortly after I posted this, didn't seem to make a difference though. My temps are fine and I'm not getting any throttling during games. Non vr games run amazing on my 3440x1440p Dell curved monitor. I also threw the gtx 1080 in my secondary rig with an i5 4590 and it performed about the same. I'm starting to wander if it's a driver issue or a bad card.

[--ranXerox--]

Update driver through nvidia

[Sticky Honeybuns]

Drivers are good. Watched the performance monitor and everything from compositor render time to wait get poses called is starting late causing the frame drops. Is this a tracking issue trying to update position and can't so it has to wait? I get a score of 11 in steamvr performce test with 15000 frames 0 dropped 0 cpu bound so now I'm inclined to think I have a tracking issue. I noticed that in the performance test it does not make calls to these resources. I will mess with my lighthouses and see if that changes anything.

[Tummie555]

Don't think anything is wrong with your setup man, msi gaming x8 gtx1080 or something in my rig, 6600k running liquid cooled at 4.6hz, 32gb ddr4 ram, ssd, can't run project cars on max settings in vr, not nearly, AA on dx4 and ss at 1.1. Just getting 90hz with absolutely no room to spare. Same for Dirt rally, shadow details on medium and ground cover at low and ambient oclusion or whatever turned off, no ss , the rest at max though to get 90hz. Assetto Corsa runs the best of the three with only post processing completely off. Ss at 1.8. Still the models look like they've been cut out with a rough saw. I have a lot of fun playing these games though.
Smaller games run on highest settings, but are less reliable with huge frequent frame drops.

What I am trying to say is after the nvidia presentation of these cards hopes were triggered, high VR hopes. And it was an unpleasant suprise to find I couldn't turn everything mindlessly to max and run on 90hz, even with their timewarp techniques and whatever oculus calls that stuff. Playing the same games on a screen gives almost 200 fps at max settings.
So I think it's just that these "current-generation" (VR-)games are not optimised for the gtx1080 cards possibilities. I believe only VR fun house uses Nvidia VrWorx for example. From what I understood that is the technique we need to get 50% to 70% performance increase from our cards in VR compared to our current experiences. But it's up to the game developers to use it.

With that said, I still enjoy everything in VR and believe the VR future is very bright for these cards.

[Sticky Honeybuns]

Thanks for the reply Tummie. I agree that there is nothing wrong with my GPU but now I do think my problem stems from USB. After watching my GPU load and performance graphs in steamVr I feel like the GPU is just getting the tracking data later than it should causing it to have to wait. I never see full load and my temps stay around 65C.

I haven't updated my Bios yet and I'm going to try that when I get home today. I have also heard of people using a pice usb card and may try that if nothing else works.

The games are definitely poorly optimized but I think my performance should be slightly better than this.

Thanks for all the replies so far.

[Tummie555]

Yes I heard the same from Vive users, where the motherboard usb ports sometimes give problems, hope it'll work out for you!

[АПАСНЫЙ МАКС]

When I upgraded to a GTX970 I used my old 560ti for PhysX, during testing I noticed I actually got lower performance output doing that, things ran much better on the 970 alone :P So yeah, do what --ranXerox-- said, or at least disconnected it from PhysX ;)

[Sticky Honeybuns]

Yea, I pulled the physx card but it didn't change anything. I ended up refunding Raw Data for now since it's practically unplayable. That may have been my mistake though since it says Windows 10 for OS and I'm running Windows 7.

I also managed to fix a lot of the stuttering by simply covering my 135 inch 1.1 gain screen. I have this in my dedicated HT room. I tried this before but I used a different sheet this time, which was much thicker, and my random stuttering in low intensity games has gone away.

I still think I can get better performance and I will update if I discover any other fixes.

[Maichevsky]

https://www.reddit.com/r/Vive/comments/4eigbg/vr_ready_pc_stuttering_try_these_things/