[result] rtx 3080 for VR

[Svsmokey]

Heyy Guys

 

i hope someone can help me. I get bad stutters in DCS. With every stutter the sound lags too. I noticed that the cpu utilization drops with every stutter. No difference between singleplayer or multiplayer. I tried to lower all settings but no difference in stutters.

I disabled hotplug and game dvr.

 

I play only in VR and with the VR preset settings i got 80fps locked for my rift-s with no ASW.

 

My System:

Zotac RTX 3080

Ryzen 3700x

32gb RAM 2400MHz.

NVMe 1Tb

 

thank you

 

Smt disabled ? Running an anti-virus ?

[stormrider]

It is possible that the Ryzen 3700X is too weak for your GPU which could result in a bottleneck at higher resolution (4K), more to the point, your RAM is running too slow.

 

 

I don't think that's the case. It's quite the opposite really. The higher the resolution, the less the CPUs tend to stand out.

 

Even a R5 3600 is perfectly adequate for any resolution higher and including 1440p.

 

Edited October 15, 2020 by stormridersp

[eatthis]

I don't think that's the case. It's quite the opposite really. The higher the resolution, the less the CPUs tend to stand out.

 

Even a R5 3600 is perfectly adequate for any resolution higher and including 1440p.

 

 

sims are notoriously cpu heavy, aaa games are not

[BeastyBaiter]

Nearly all modern games use at least 8 CPU threads reasonably well. DCS uses 1 fully and about half of a second. For CPU reviews, take a look at their CS:GO benchmarks as those are going to be more representative of the kind of difference you can expect in DCS. VR is an FPS challenge and while one can always make the game GPU limited, if we're going for 90 fps (or more), then it tends to be a battle with CPU limitations on that single heavily used thread.

[Thinder]

I don't think that's the case. It's quite the opposite really. The higher the resolution, the less the CPUs tend to stand out.

 

Even a R5 3600 is perfectly adequate for any resolution higher and including 1440p.

 

 

 

It's the bound between the two that matters, if you have more than 10% bottleneck at high resolution, it hurts the performances a lot.

 

I'm looking for 4K and I expect my actual setting to be marginal at this resolution.

 

The Ryzen 5 3600X and 1080Ti are a good match, above that you might need a stronger processor or GPU, here are my results.

 

Average bottleneck percentage:

 

1080P 4.52%

1440P 6.65%

2160P/4K 8.34%

 

I don't know how the RTX 3080 compare because it is not yet listed for computing bottleneck so I stick to a possibility, something worth investigating.

 

The Ryzen 7 3700x doesn't look like it is much stronger than the Ryzen 5 3600X, which is why I suggested it might not be strong enough for a RTX 3080.

 

https://cpu.userbenchmark.com/Compare/AMD-Ryzen-7-3700X-vs-AMD-Ryzen-5-3600X/4043vs4041

 

 

His RAM is definitively slow.

 

 

In any case, it is wise to have a look at the bottleneck calculator before committing to a purchase, personally I always bound CPU and GPU to avoid going over 10%.

 

......

[Thinder]

Nearly all modern games use at least 8 CPU threads reasonably well. DCS uses 1 fully and about half of a second. For CPU reviews, take a look at their CS:GO benchmarks as those are going to be more representative of the kind of difference you can expect in DCS. VR is an FPS challenge and while one can always make the game GPU limited, if we're going for 90 fps (or more), then it tends to be a battle with CPU limitations on that single heavily used thread.

 

 

That's why I mention RAM speed and the Ryzen 3700x to be too slow for the RTX 3080.

 

First all the data has to go through the RAM and I believe that DDR4 3600 would be a much better suited speed for an AMD CPU, especially playing DCS in VR at higher settings.

 

Second, the Ryzen 3700x is not that hot when it comes to gaming, in fact, its overall performances are matched by the Ryzen 5 3600X.

 

3700X is 26% faster at 64-core computations but 13% slower for gaming and desktop (sub eight core performance).

The 3600X might not match the RTX 3080, with a bottleneck percentage of 6.26% at 2160P/4K when used with a RTX 2020Ti.

 

I did find a bottleneck calculator which has 3080 data and if this is correct it is one reason for the performances issues.

 

 

https://www.cpuagent.com/build-compare/intel-core-i9-10900k-vs-amd-ryzen-7-3700x/gaming-summary/nvidia-geforce-rtx-3080-vs-nvidia-geforce-rtx-3080?res=3-vs-3&quality=high-vs-high&ram=32-vs-16

 

In both cases, the DDR4 3600 is always faster, so you might have two issues slowing down this combo; first the RAM frequency, then CPU/GPU bottleneck but in the case of the GPU, only at 1080P.

 

We need to validate all of this before we come to conclusion but I really think it shows where the problem could be.

 

For the RAM I would advise this kit:

https://uk.crucial.com/memory/ddr4/bl2k16g36c16u4b

 

https://www.youtube.com/watch?v=n0FG-ZtdgP0https://www.youtube.com/watch?v=n0FG-ZtdgP0

 

I went for the 3200 kit because I was in a rush to replace my previous RAM but the 3600 seems to be better suited to an AMD CPU, in particular my Ryzen 5 3600X, it is also perhaps the most performant in its category, my first step for upgrade stage 2 after I got my hands on the HP Reverb G2.

 

 

 

......

Edited October 16, 2020 by Thinder

[Pride37]

Depends on the model...

 

https://www.techpowerup.com/gpu-specs/evga-gtx-1080-ti-sc2-w-icx-cooler.b4349

 

 

......

 

Thanks for the info, Thinder. I didn't know that...

[Csgo GE oh yeah]

 

3080 , 8700K @ 5ghz, 36GB RAM (3200mhz)

 

Settings are in the video somewhere

I should have used the geforce overlay to show GPU usage, but i didn't. It's about 80-90% in this empty , offline mission.

[Krupi]

Some data from DCS and a 3090...

 

 

 

[imacken]

Been linked many times here over the last few weeks.

[Motomouse]

a song enters my mind: money for nothin

[imacken]

a song enters my mind: money for nothin

Yawn....

 

[hansangb]

a song enters my mind: money for nothin

 

LOL. You should win the award for the most loyal AMD customer of the year! You are relentless if nothing else. As share owners of AMD and NVDA, I approve! LOL

[Motomouse]

Yawn... <> LOL

Such a variety of responses :-)

 

Nvidia just really messed with me ;-)

 

The serious part is I really expect excellence for big money from any company. I am not one of those that always need the latest and greatest. If my current hardware is up to the job, I want a disruptive innovation for my money not merely an incremental improvement. If this is not available in the area of GPUs I just spent my money on something else ;-)