Physx to CPU, witcher 3

[Roboslash1]

Hi,

 

Ive been reading a bit about performance tweaks to The Witcher 3: Wild Hunt since I would like to reach the sweet spot 60 fps. I saw someone say that I should try to put physx on my CPU instead of my GPU. I did, and i did get a small performance increase, however I still prefer physx to run on my GPU on other programs/games. Is there a way to make my CPU do the physx only for Witcher 3? 

 

Also, if anyone has other suggestions for increased performance/performance tweaks for the witcher 3, please post below

 

Specs:

 

Nvidia Gigabyte GTX 780ti GHZ Edition

 

i7 5820k

 

Fractal Design Refine R4

 

Noctua NH-D14 SE2011

 

Kingston SSDNow V300 SSD - 120GB

 

Western Digital WD Green 1TB

 

Cooler Master Thunder 700W

 

Crucial Ballistix Sport 16GB DDR4 2400 MHZ

 

Gigabyte X99 UD3 Motherboard

 

 

 

Roboslash

[AlwaysFSX]

Why not just change the tessellation and AA settings in the control panel..?

[Roboslash1]

Why not just change the tessellation and AA settings in the control panel..?

 

Could you elaborate? Should I put AA on override?

[AlwaysFSX]

Could you elaborate? Should I put AA on override?

First you should follow this:

 

Go to Witcher 3 Install directory on PC.

Navigate to The Witcher 3 Wild Hunt\bin\config\base → rendering.ini

Search for “HairWorksAALevel” and change it to 2 or 4 for a significant boost.

http://gearnuke.com/witcher-3-run-hairworks-amd-nvidia-gpus-without-crippling-performance/

 

That'll net you some frames back, I'm looking for how to change the tessellation level for Nvidia cards though.

[Roboslash1]

First you should follow this:

 

Go to Witcher 3 Install directory on PC.

Navigate to The Witcher 3 Wild Hunt\bin\config\base → rendering.ini

Search for “HairWorksAALevel” and change it to 2 or 4 for a significant boost.

http://gearnuke.com/witcher-3-run-hairworks-amd-nvidia-gpus-without-crippling-performance/

 

That'll net you some frames back, I'm looking for how to change the tessellation level for Nvidia cards though.

 

Hmm. interesting. However, im not using Hairworks atm. 

[AlwaysFSX]

Hmm. interesting. However, im not using Hairworks atm. 

That's pretty much the main PhysX stuff..

[Roboslash1]

That's pretty much the main PhysX stuff..

 

Alright. Are there any more changes I could make to make the game run better?

[AlwaysFSX]

Alright. Are there any more changes I could make to make the game run better?

Uhh, lower some settings?

[_ASSASSIN_]

Turn off nvidia hairworks. Completely useless as I personally see no difference and it gives back 20-30 frames for me to get 60+ frames when wandering in witcher 3. (check specs below)

I still have hiccups with dense cities such as novigrad.

[Roboslash1]

Turn off nvidia hairworks. Completely useless as I personally see no difference and it gives back 20-30 frames for me to get 60+ frames when wandering in witcher 3. (check specs below)

I still have hiccups with dense cities such as novigrad.

 

What settings do you use? Have you tweaked anything?

[kmdays]

just wondering...are you using 353.06 drivers? because it help a lot to 700 series, i got about 10fps more than the old 352.86

[Arct1c0n]

Reduce foliage draw distance, that is a HUGE one. Change Ambient Occulasion to SSAO instead of HBAO+.  Also, turn off Adaptive Power to "Perfer Maximum Performance" in Nvidia control panel and change Prerendered frames to 1.

 

You can find lots more here. 

 

http://forums.cdprojektred.com/threads/36088-A-compendium-of-tweaks-and-fixes-for-the-PC-version

[_ASSASSIN_]

What settings do you use? Have you tweaked anything?

All post processing except HBAO+, antialiasing, and lightshafts is off.

Everything ultra (hairworks completely turned off), unlimited frames, full window, and grass density, render distance, and people set to only high.

I also have a 220+ offset on the VRAM and 130+ GPU core offset on an already OC'd card. Runs stable and smooth though.

[randy hutajulu]

Hi,

Ive been reading a bit about performance tweaks to The Witcher 3: Wild Hunt since I would like to reach the sweet spot 60 fps. I saw someone say that I should try to put physx on my CPU instead of my GPU. I did, and i did get a small performance increase, however I still prefer physx to run on my GPU on other programs/games. Is there a way to make my CPU do the physx only for Witcher 3?

Also, if anyone has other suggestions for increased performance/performance tweaks for the witcher 3, please post below

Specs:

Nvidia Gigabyte GTX 780ti GHZ Edition

i7 5820k

Fractal Design Refine R4

Noctua NH-D14 SE2011

Kingston SSDNow V300 SSD - 120GB

Western Digital WD Green 1TB

Cooler Master Thunder 700W

Crucial Ballistix Sport 16GB DDR4 2400 MHZ

Gigabyte X99 UD3 Motherboard

Roboslash

Eh? Is it really possible to run physx on CPU??

[.spider.]

Eh? Is it really possible to run physx on CPU??

Yes but it is very slow on CPU

[T6kke]

The hairworks is the only PhysX thing in the game. I've also heard that HBAO+ in the game is the Nvidia version of that but I've not see any confirmation on it. But that is also not PhysX thing.

 

Other then that you can only improve performance by lowering the settings. Maybe update the drivers if you haven't.

[randy hutajulu]

Yes but it is very slow on CPU

So it's.still better if it's working on GPU right?

So what's the point of this then?

[.spider.]

So it's.still better if it's working on GPU right?

So what's the point of this then?

That's my experience.

The point of what?

[randy hutajulu]

That's my experience.

The point of what?

 

i mean is the sacrifice for a worse physx output worth the little FPS improvement? or it's even slowing down the overall game performance because of the slow physx calculating from the CPU?

[.spider.]

i mean is the sacrifice for a worse physx output worth the little FPS improvement? or it's even slowing down the overall game performance because of the slow physx calculating from the CPU?

It's slowing down everything.

The physx code is very inefficient on a CPU but I don't know if they improved it before releasing the code some time ago.

I tried physx on a 3.7Ghz Haswell about one year ago and it was worse.

[randy hutajulu]

It's slowing down everything.

The physx code is very inefficient on a CPU but I don't know if they improved it before releasing the code some time ago.

I tried physx on a 3.7Ghz Haswell about one year ago and it was worse.

 

so it will be better if we don't do this then, right sir?

[.spider.]

so it will be better if we don't do this then, right sir?

I think everybody should try it on his system once and see if it helps but I doubt it.

[Arct1c0n]

It's slowing down everything.

The physx code is very inefficient on a CPU but I don't know if they improved it before releasing the code some time ago.

I tried physx on a 3.7Ghz Haswell about one year ago and it was worse.

 

My 4790k hardly notices a difference with it working on PhysX