UT3 PhysX performance

Syncroneyes · August 16th, 2008, 10:21 PM

I think I have identified some strange bug in UT3 which could explain why many people aren't getting the expected/desired level of PhysX performance to make the game play well on the three special maps.

or maybe it could just be me only with my quad Sli setup, but Nvidia's instructions for the UT3 PhysX mod pack specifically says to make sure that "Hardware PhysX is enabled" under the game's video settings when using your graphics card's new-found ge-force PhysX capabilities.

However, whilst using "Nvidia recommended" SLi settings (UT3 default) I have found that Hardware PhysX is still enabled anyway on those three Physx maps whether its selected under video settings or not, it doesn't matter.

So whats the difference you say? - all the effects are exactly the same so long as you make sure your system is working on "Geforce PhysX", but if I make sure I DON'T enable "Hardware PhysX" under video settings I see + 10-15 AVERAGE FPS !!

Try out this method if you're struggling for FPS on those three maps...its weird eh?

IModAmd · August 17th, 2008, 02:25 AM

As you said it's an mod... and as we know it's not programers from the software editor who make thoses mods so it's can be plausible that you see bugs in this ... and as far i know they are only 3 MAPS on UT3 who are Certified to be Optimised for NVIDIA Physix

Syncroneyes · August 17th, 2008, 03:08 AM

Yeah theres only 3 physX maps at the moment. They need to make some more really, also Nvidia needs to offer more configuration tweaks to get improved FPS for gamers otherwise people will lose interest if they get bad gameplay.

IModAmd · August 17th, 2008, 03:11 AM

Rofl... i think they do more optimisations in games than ATI rofl... check the Nvidia ADS in games versus the ATI ads in games...

Cannyone · August 17th, 2008, 05:53 AM

Have you tried different AFR modes? Also, these PhysX drivers are not optimized for use with SLI. Nvidia said that would be "improved" later. Though they did not specify when that might be.

Part of the thing I didn't like about these drivers is the fact that now only UT3 shows up as an "installed game". That means all my other games are forced to use "Global settings".

Syncroneyes · August 18th, 2008, 10:44 AM

Quote:

Originally Posted by Cannyone

Part of the thing I didn't like about these drivers is the fact that now only UT3 shows up as an "installed game". That means all my other games are forced to use "Global settings".

Thats weird, doesn't happen to me using 177.83...

Cannyone · August 19th, 2008, 08:51 AM

Quote:

Originally Posted by Syncroneyes

Thats weird, doesn't happen to me using 177.83...

Syncroneyes are you running Vista? or XP? If it's the X86 version of Vista - I may need to reinstall those drivers. Maybe even redownload them.

Syncroneyes · August 19th, 2008, 10:44 AM

I'm using Vista64.