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Physx+ATI?

Last response: in Graphics & Displays
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a c 191 U Graphics card
a b Î Nvidia
July 31, 2012 7:32:55 AM

Hey community,

So first of all, I am fully determined to run a Physx setup in my computer using this Nvidia 9600GSO, so I am not going to be convinced otherwise (unless you advise me to get a better card, which I plan to do)

I'm just wondering how I can get it to work. I've got Nvidia driver version 258.96 and the 1.04ff Physx driver thingy from this website installed:

http://www.overclock.net/t/591872/how-to-run-physx-in-w...

I'm just not able to get it to work. I tried to use it on Mafia II and all I got was lag. There's also no option in the Nvidia Control Panel to enable Physx. I'm trying to figure this out at the moment.

And if I do get a new card, it would have to be a single-slot with 1 6-pin.

EDIT: Also it may not be the most brilliant idea ever. Wouldnt it make my 6950 run in 8x mode? Also how could I tell if it was working?

More about : physx ati

a b U Graphics card
July 31, 2012 7:52:19 AM

This from the Nvidia site: Jump to section APEX PhysX
http://www.geforce.com/optimize/guides/mafia-2-tweak-gu...

"The most substantial performance impact comes from the APEX clothing effects, particularly in scenes with multiple people, because these clothing effects will always run on the CPU unless you have a second PhysX-capable NVIDIA GPU dedicated solely to PhysX. If you don't have a second dedicated PhysX-capable GPU then your primary GPU will need to be a high-end PhysX-capable NVIDIA card combined with a high-end quad core CPU to maintain playable framerates."

If you look at the graph on the site, you see that it is very demanding. So the lag is normal since it is a very demanding feature.

Conclusion: I think it is your gpu that can't handle the PhysX at playable frame rates.



- Fastreaction
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a b U Graphics card
July 31, 2012 7:59:40 AM

This seems like a lot of work for something as minor as PhysX. :p 
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a b U Graphics card
July 31, 2012 8:02:44 AM

claysm said:
This seems like a lot of work for something as minor as PhysX. :p 


Well.. minor? There is a huge difference in quality if you check on the internet. It is a very demanding feature and he will lag with that GPU he currently has with PhysX on.

- Fastreaction
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a b U Graphics card
July 31, 2012 8:15:54 AM

fastreaction said:
Well.. minor? There is a huge difference in quality if you check on the internet. It is a very demanding feature and he will lag with that GPU he currently has with PhysX on.


Minor may have been a little strong, but PhysX isn't all that great. The demo videos are nice, but they are just that, demos. They specifically show scenes with the maximum number of PhysX features in them to make it look better. But in real world gaming, there just isn't that much difference.

And a short internet search says that a dedicated PhysX card actually doesn't really need to be very powerful at, since it won't be doing any rendering. So you should be able to get away with a 9600GSO.
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a b U Graphics card
July 31, 2012 8:19:16 AM

I wonder about that. If you looked at the link I provided from the official Nvidia site. They are running a GTX 480 PhysX on Mafia II. PhysX on HIGH is about 32 fps on only 1680x1050. If he plays on 1080p his fps would be 30 with a GTX 480. A gtx 480 is better than the card he has now so I suspect his GPU is not able to handle PhysX in that game.

- Fastreaction
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a b U Graphics card
July 31, 2012 8:26:33 AM

Yeah but the GTX 480 they were using was a solo card, so it was doing all of the rendering in addition to the PhysX calculations. With a dedicated card, however, you don't need nearly as much power.

http://www.tomshardware.com/forum/338970-33-best-dedica...

In this thread, the guy uses an 8800GT (for Mafia II in fact) and claims that it runs very well indeed.
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a b U Graphics card
July 31, 2012 8:32:09 AM

Most easiest way for the thread starter to test is to turn OFF PhysX and check his fps and after that turn ON PhysX so we don't have to speculate what the problem is :p 

- Fastreaction
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a c 191 U Graphics card
a b Î Nvidia
July 31, 2012 8:36:07 AM

That's the other thing, there is no point in the control panel that shows whether it is on or not. I've been looking for hours.
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a b U Graphics card
July 31, 2012 8:41:19 AM

You have to get into the game and do this.
Options > Video > PhysX ON - OFF

- Fastreaction
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a b U Graphics card
July 31, 2012 9:38:02 AM

U also need to delete phyX?????.dll from the game folder to make it work...

I'm also in ATI + PhyX but the games (my taste one) that support hardware phyX acceleration is still to few......

you will gain nothing if the game don't support hardware physX acceleration
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a c 191 U Graphics card
a b Î Nvidia
July 31, 2012 6:08:27 PM

fastreaction said:
You have to get into the game and do this.
Options > Video > PhysX ON - OFF

- Fastreaction


I've tried it in Mafia II, and either the 9600GSO is just dead slow, or its using the CPU. Either way it is very laggy in Physx terms. I also tried it in Arkham Asylum, and it said I did not have proper hardware or something like that.

Quote:
you will gain nothing if the game don't support hardware physX acceleration


I am aware of this, I play games like Mafia II, Metro 2033, Batman AA and AC and probably Borderlands 2.
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a b U Graphics card
July 31, 2012 9:03:20 PM

Using an AMD card for rendering and a nVidia card for PhysX certainly isn't bulletproof :p .

But Borderlands 2 for the win.
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Best solution

a c 225 U Graphics card
a c 75 Î Nvidia
July 31, 2012 9:05:20 PM

PhysX is one of those things you don't miss until you've actually experienced it. I can recall such an experience in my teenage years :0

As it says in this THG article, once ya turn it on.......

http://www.tomshardware.com/reviews/batman-arkham-asylu...

Quote:
There is a high price to pay for PhysX performance, but I have to admit that the eye candy is a lot of fun to watch. Once you've turned it on, it's not something you'll turn off if your hardware can handle it.


As for performance, I'm not sure how the 9800Gs and 8800 compare but here's a video of Batman AA with an 8800 doing PhysX....splt screen showing PhysX on and off.....fps is shown on the following page.

http://www.firingsquad.com/hardware/batman_arkham_asylu...

I do remember from when nViida disabled PhysX on ATI cards, there was a patch you had to apply. Have you done this ?

http://www.tomshardware.com/news/nvidia-ATI-physx-patch...

It only worked w/ Windows 7

http://www.ngohq.com/graphic-cards/16223-nvidia-disable...

http://www.ngohq.com/graphic-cards/16223-nvidia-disable...

Quote:
What the best drivers combination ati + nvidia to run Batman Arkham City PhysX at the moment?

nVidia's Forceware 285.62 WHQL with latest PhysX Patch 1.05ff and latest AMD Drivers which improves Tessellation performance specially on HD 6800 series. Also make sure you also install the latest Batman AC patch which fixes the DX11 performance hoes. Smooth sailing for you after that :-)


I can tell ya I played about a third of Batman AC on a 120Hz 1920 x 1080 monitor with 3D glasses and PhysX enabled and I found 3D and PhysX added a lot to the experience.... one day I will get back to it but that would involve getting my son off the thing for a while.
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a c 191 U Graphics card
a b Î Nvidia
August 9, 2012 3:19:56 PM

Thanks for the massive help! I've been away all week on a hiking trip and have not been able to try any of these suggestions, but I am working on it right now.

I'll get back to you.

EDIT: I also apparently have the G92 9600GSO, which is nice actually. I was 100% sure it was the G94, but I guess not.
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a c 191 U Graphics card
a b Î Nvidia
August 20, 2012 2:05:52 AM

Best answer selected by Deemo13.
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