Originally Posted by Image132
Wow ok so a lot to go through after a good sleep.
Everything I've read says you can't just slap a very old/underpowered card in there as you guys have said then your gpu has to wait for the card to do the calculations and this leads to degraded performance. Likewise setting it to CPU is a very bad idea as physx was designed to be run on GPU's not CPU's and hence it's pretty bad at doing it.
With physx on med (what I normally play with) I noticed a pretty big performance drop with my card but it was odd. My card would only ever run at about 50% usage. Changing physx to low kicked the gpu to run at 80% usage and I'd get pretty big fps gains. When I play with it on with my 3 friends and things get hectic my fps can drop all the way down to 15 which is just unacceptable for a 780. Even though gforce experience tells me I should put it on high I don't think it realizes that I'm playing with 2 other people. Physx on high with 1 person is pretty easy but doing more seems to make it exponentially harder.
I have however read that even 690's have fps drops to about 30 when playing borderlands with a party of people. But this was just a comment on an article. Sadly physx hasn't really been tested or benchmarked properly so for me at least it causes quite a bit of confusion.
I run the game with everything on max in 1920x1080 except physx which I put to low as I'd rather take the boost to fps than some pebbles and blobs. Also I have a 120hz monitor so I try to keep my fps as close to that mark as possible because it makes it buttery smooth.
Specs of my build:
CPU: intel i7 2600k OC'd stable to 4.2GHz
RAM: 8GB Corsair Vengeance 1866MHz
MOBO: Asus Maximus IV Extreme
PSU: Corsair HX1000
GPU: Asus GTX 780 DCII
OS: Windows 8.1
Since I have yet to find any info on any current pc build (with a dedicated card or not) that can run borderlands 2 with 4 people with physx on high and not get 30fps I'm going to assume it's either badly coded or too intense for current gen systems. However due to astonishing lack of info on physx and pretty much no testing with it (or even a physx benchmark app) it's not entirely out of the question. The only reason why testing is so sparse that I can think of is because of lack of an app and maybe a lack of games that support it?
Because of all that I'm sort of leaning towards not bothering. Might as well buy another 780. I don't know, what do you guys think?
I had terrible luck with the 335.xx drivers, so try a clean install of 332.xx WHQL or the new 337.xx Beta drivers. If I'm not dipping that low with my setup at 1440p, there's no way you should be touching 15 fps. Also, have you tried to mess with the View Distance as well?
Originally Posted by Tokkan
Your problem isn't the detail but the quantity in the Physx particles. You need to limit them. My GTX765M on my laptop handles BL2 with Physx on high without any major slowdown and I don't really see any difference. I just changed the Physx properties.
Curious, but what exactly do you mean by this? And what settings did you tweak exactly?
Originally Posted by funkmetal
Weird, I used to run with a lvl. 50 farm group back at the launch of the game and I would get 100fps+ even during things like Pete farms and Warrior farms. The rig I used at that time was my Sig Rig White Dragon. I never used a physX card and ran it with high PhysX.
You're also running SLI, which while you're not using the second GPU as a PhysX card, the system could be offsetting a lot of that PhysX load to the second card. In his (and mine as well) case, single card setups seem to be the problem. I ran the game with flying colors with low PhysX on an AMD card at 1080p before this, so I'd be willing to attribute a lot of it to that.