Portal with RTX

Portal with RTX

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†sch0ck† Sep 19, 2023 @ 6:19pm
Input lag ?
Playing with 5800x3d and 4080. With all that dlss stuff i get a massive input lag. Is that normal ?
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Originally posted by †sch0ck†:
Playing with 5800x3d and 4080. With all that dlss stuff i get a massive input lag. Is that normal ?
I don't see any input lag at all with DLSS on with an RTX 3070 Ti.

What resolution are you running at and what is the average FPS you are getting in the game?
TheEffectTheCause Sep 20, 2023 @ 1:24am 
Originally posted by †sch0ck†:
Playing with 5800x3d and 4080. With all that dlss stuff i get a massive input lag. Is that normal ?
Did you optimise your PC/Bios setting for the X3d cache? Heard they can have a few problems out of the box, adjusting a few setting's here and there fixes it, maybe somethng to do with that.
Henry Sep 20, 2023 @ 3:58pm 
Originally posted by †sch0ck†:
Playing with 5800x3d and 4080. With all that dlss stuff i get a massive input lag. Is that normal ?

I got bad input lag when I forced VSync from the NVidia control panel, as I was trying to get rid of the tearing. It seems the game has an issue with VSync.
Originally posted by Henry:
I got bad input lag when I forced VSync from the NVidia control panel, as I was trying to get rid of the tearing. It seems the game has an issue with VSync.
That is not true. I use Vsync + DLSS in this game and it runs perfect for me with zero input delay.
Henry Sep 21, 2023 @ 12:50pm 
In my case it is. Only enabling VSync caused the input lag for me, and went away when I disabled it. So, it may be worth trying for the OP.
Originally posted by Henry:
In my case it is. Only enabling VSync caused the input lag for me, and went away when I disabled it. So, it may be worth trying for the OP.
Then you must be running the game below the minimum refresh rate of your monitor. If you were above it then you wouldn't have this problem.
SiEgE Sep 22, 2023 @ 12:05pm 
Originally posted by †sch0ck†:
Playing with 5800x3d and 4080. With all that dlss stuff i get a massive input lag. Is that normal ?
Hm.. Lets put it like this:
1. Algorithm has its cost, including input lag.
2. GPU that works at brink of its capabilities, will produce input lags. That is exactly why pro players suggest limiting your fps at numbers slightly lower than your mid fps. When you underload your GPU, it produces much more stable image, with much less input lag.
3. It looks like the overload and lack of performance of your GPU is the real reason for the input lag, and not the DLSS. Of all things DLSS was supposed to save the situation just a bit.

Raytracing is NOT a cheap effect! Do not presume that having a top of the line videocard would make you capable of running it at maxed out settings. Also afaik 4080 is a quite low performance card. 4060, 4070, 4080 cards are using older chips, unlike 4090, which is also not enough.
Last edited by SiEgE; Sep 22, 2023 @ 12:08pm
dursun akkaş Jul 8, 2024 @ 8:45am 
Originally posted by 🦊Λℚ𝓤ΛƑΛᗯҜᔕ🦊:
Originally posted by Henry:
In my case it is. Only enabling VSync caused the input lag for me, and went away when I disabled it. So, it may be worth trying for the OP.
Then you must be running the game below the minimum refresh rate of your monitor. If you were above it then you wouldn't have this problem.

THIS!
TheDeeGee Aug 11, 2024 @ 9:30am 
Just installed this msyelf, getting terrible mouse lag as well.

The base game doesn't have that.
Originally posted by TheDeeGee:
Just installed this msyelf, getting terrible mouse lag as well.

The base game doesn't have that.
There is no "base game" for this. It's a sepereate "Game" from the normal Portal.

Also there are many things that can effect this. What FPS are you getting? What kind of monitor do you have? What resolution? What refresh rate? What video card do you have? Are you getting less than 60 FPS?
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