Locked or Unlimited FPS

[Forkboy2 27]

 

 

But why is someone using an external limiter from NI for instance. What advantage should that bring to the table ?

 

Might help if you disable v sync and have really bad texture tearing.  At least it seems to help for me.

[TheBoom 31]

To get smoothness with locked FPS you need to set the slider to half of what you get (the minimum possibly). Which means if you get 30fps at a dense area with heavy scenery and ai traffic such as EGLL with unlimited, you have to set 15 fps locked to get the best performance.

 

Which is why I've stopped using locked FPS, at least internally. 

[Andreas Stangenes 1,628]

You dont set your fps limiter to half of your unlimited fps AFAIK, but to half of your monitors refreshrate (30 if your monitor is 60 hz). If your fps dips below 30, you will have stutters if I understand this correctly.

[GSalden 4,657]

Why do we lose FPS when using the built in frame limiter?

 

Is it better if you leave that at Unlimited by use the NVIDIA frame limiting options?

Unlimited automatically uses FFTF=0.01 internally.

Therefore it will give better framerates than a locked version.

Only when adding FFTF=0.01 manually it will be equal.

 

I choose to use Unlimited + VSync icw the Frame Rate Limiter from NVI.

Also I made a modified Limiter entry, 25 and use that ( 3 outside view screens ).

My monitors also are running at 25 Hrtz.

 

Now I have everything smooth, also at detailed addon airports with AI traffic and 4 cloudlayers ( max )

[TheBoom 31]

You dont set your fps limiter to half of your unlimited fps AFAIK, but to half of your monitors refreshrate (30 if your monitor is 60 hz). If your fps dips below 30, you will have stutters if I understand this correctly.

 

Well yes but that is considering you get 60 fps unlimited. Locked FPS supposedly renders the look ahead frames/buffer (from what I gather in other threads its about 2x the frames) which is why it gets stuttery or not smooth if you set it simply to half your monitors refresh without having the performance to hit 30fps.

 

You may get 30fps unlimited but as soon as you use locked its going to drop even further regardless of your monitor's refresh rate if you get what I mean.

 

So up in the air you may get 30 locked and smooth but once you approach some heavy scenery its back to 20fps and stutters . Whereas with unlimited you get maybe 60-70 fps in the air and on approach it still maintains 30fps.

[joepoway 241]

Gerard

 

I recently found by using Nvidia Inspector to externally limit frame rate to 30 fps while running P3D internally on unlimited with vsync and tripple buffering on my blurries were dramatically reduced. Prior I was not using the external limiter and was fighting blurries no matter what I tried. By the way I run a 30Hz 4K monitor and can maintain 30+ fps so vsync is useful.

 

Can someone explain what is going on when you set unlimited in P3D but externally limit frames to 30 fps?

 

Additionally there are at least 2 sets of frame limiter numbers under the P3D profile in the latest NI options 30 fps (v1) and 30 fps (v2) does anyone know the diffrence in these choices, are they version 1 and 2 of P3D and there is no version 3 option?

 

Joe

[JNS 106]

 

 

Can someone explain what is going on when you set unlimited in P3D but externally limit frames to 30 fps?

 

And vise versa.

 

Thanks.

Jeff

[WebMaximus 372]

I've tried all options in the past limiting the FPS using the built-in limiter, external limiters, different affinity masks, HT enabled/disabled and I always fall back to unlimited FPS, HT disabled and no affinity mask since this gives me the best FPS and still 100% smooth.

 

This is using a 980 Ti and a 6700K @ 4.5 GHz doing all my flying in the NGX with all global Orbx stuff, AS16 weather and lots of payware airports.

[Jim Young 2,356]

Which is the best option?

 

Specs - GTX 980TI, i5-4460, 8gb ram

Have you checked out the AVSIM P3D Guide?  There are several pages where FPS are discussed (pages, 7, 28, 44, 45, 47-49, 70, 71, 78-80, 107, 111, 139, and most importantly, in Performance on pages 146 and 147).  The guide also discusses the FFTF tweak and its impact on FPS.  Lots of excellent ideas from users above but I would also check out the guide as it discusses fps depending on video cards too.

 

Best regards,

Jim

[Geiranger 0]

Best for me on an 60 monitor is limit to 30 in NI and set 31 in p3d . Standard vsync on 1/2 refresh in NI. No vsync or tripple buffer in p3d

[RaptyrOne 1,411]

I`ve got a GTX 980Ti too and I get better frames with unlimited fps...try and find out!

For me exactly the opposite LOL. I used to run unlimited only until the most recent Nvida Inspector. Setting 30.5 FPS has made it so much smoother. Don't use the in sim limiter it is not a true limiter.

[abarter 28]

i2500k and TI 650 boost. I can get 40 fps or higher with unlimited but then the blurries are bad, really bad. So I lock it at 22 - 25 in P3D, depending on the area detail, and don't get blurries.