DCS VR. High FPS (90) but it lags when I move around

[shakyhands91]

Hello !

My specs:
Asus TUF gaming RTX 3090
ADM Ryzen 7 5800 X 3D
Msi mpg x570s carbon max wifi 
DDR4 3600 32GB
HP reverb G2 V1

I have a problem that i cant get the hang off. As you see I have a pretty good PC. But still I`m struggling with VR performace. The openxr toolkit says that i have around 90 FPS at its best, but still lags like <profanity> ingame. When I move around inside the cockpit the movement itself is lagging like hell. The only way to get it stop lagging is to turn down the graphics-settings to the lowest, and then I mean to the lowest! The resolution is turned down to 80% in openXR toolkit. I have tried serveral guides out there with no luck. At the time i`m using openXR and open composite. 

Is there anyone out there who can help?

 

[Marklar]

What are your frametimes for GPU and CPU? 

[Brzi_Joe]

Have you try to set HAGS off? check internet for how to.

[Specter]

Use motion reprojection and live with some artifacts.

[shakyhands91]

Sorry for not answering! But have actually solved the problem! Overclocking the GPU was the solution!

 

[Thinder]

6 hours ago, shakyhands91 said:

Sorry for not answering! But have actually solved the problem! Overclocking the GPU was the solution!

 

Bounding a Ryzen 7 5800 X 3D with DDR4 3600 32GB, unless it's a Corsair or GSkill B.die Cl14 make sure you have a bottleneck of hell, there is a lot to gain with this CPU by giving it the right RAM kit, especially in VR and 4K.

Your 5800 X 3D controller is limited to 3200Nhz, 4 ranks, if you're using a 3600Mhz and/or more than 4 ranks, you're well over the limit of what it can manage and it throttles down as early as you hit a load bump, that's why I never use anything lower than 4K for my tests, it's where the real stuff starts to show.

Here is the difference between the 5600X + 32GB Cl14 3200Mhz and the 5800 X 3D with32GB Cl14 3600 MHz, the RAM extra 400MHz makes little difference, especially because the 5600X runs faster than the 5800 X 3D and can be boosted, the difference is in the 5800 X 3D cache, it was designed for taking advantage of low latency, all AMD Ryzen 3D are...

Recovering of the bottleneck at 4K (gain) keep all your channels open, that's + 18.91% in GPU performances, and 14.09% in CPU performances over a non-3D CPU, if your RAM is Cl16 or else, no B.die, it means you're overclocking your GPU for nothing, but the fact that you're able to run it at 3600 MHz suggest it might be a B.die kit so the problem can be elsewhere.

Personally, I'm much more for optimization than Over-Clocking, getting rid of bottlenecks often do a lot more for your PC than O.C, and you keep the manufacturer warranty, with AMD GPUs there is SmartAccess Memory, the performance gain is far from being negligible, there should be something equivalent for your GPU, check BIOS settings.

If your RAM kit is no B.die you created a bottleneck for your all system, fitting "faster RAM" to an AMD CPU is a myth, (must be so for Intel too, controllers works the same way with similar limits), the day I tried to O.C my Crucial "Gaming" 3200MHz kit, I instanly lost over 1% performance at 4K, it just doesn't work that way, you need the right timings.

Edited February 1, 2023 by Thinder

[EightyDuce]

As much as the dude-man poster above wants it to be the case, you're not in some "bottleneck of hell?" bound by your RAM. He posts how he had a massive performance gain by going to CL14 DDR4, but in reality, vast majority of his gains come from 5600X to 5800X3D, where the latter is a gaming monster in comparison. Furthermore, contrary to his lack of understanding and regurgitating, of information, 5800X3D performance does not come from low latency RAM, but the masisve cache. This large low latency cache allows the engine to keep more of the low-level "instructions" on the chip and not put in the RAM. 

 

Long story short, take everything he copy-pastes into every thread with a large block of salt, as alot of his statements aren't rooted in reality or at best are a misrepresentation of information. 

[Shrive81]

On 1/31/2023 at 2:55 PM, shakyhands91 said:

Sorry for not answering! But have actually solved the problem! Overclocking the GPU was the solution!

 

What did you use to overclock your GPU I have the same issue 

[BitMaster]

Almost everybody uses MSI Afterburner