Plz clear up PhysX for me

Germz

Limp Gawd
Joined
Jan 14, 2007
Messages
164
I basically know what it is supposed to do as i read the article on Wiki and nvidia marketing hype but i still would like to know whether is helps a lot with todays games and whether its worth getting one. I know also that one can do PhysX with another nvidia card, but which solution is better? I assume any PCI-e card will be better than PCI, i only seen 2 kinds of PhysX cards: 1 BFG PCI one and one Asus PCI-e x1. Anyway, i'd be interested in what folks here have to say about this.
 
None..? Just get a higher end card that can run Physx or forget it about it altogether.
 
Well, you havent really answered my questions. i do have 8800GTS 512 does that mean PhysX already works on my card and no additional steps are neccesary? I've seen people running another nvidia card or a PhysX card with higher end cards, is it pointless? If so than why are they doing it?

Still, i'd like to know if gaming experience benefits greatly from PhysX or its just a gimmick?
 
8800 and up cards have physx capability enabled through driver so that the GPU can perform part of CPU physics calculation tasks, it works but so far not much games supporting it, so you are good on physx part. They've already stoped making Ageia PhysX pci card since it's been bought by nvidia early 2008, all the physx cards on the market is gonna become history soon. PhysX support is enabled on your card, but it will probably just a tady bit slower than a dedicated card since GPU have lots other things to calculate as well...

I did a 3Dmark vantage test on CPU2, which is a physx capability test, with my hd4870 the score is a pathetic 10 calculations per secons, but with my 9800gtx+ with physx driver installed, the score is boosted 12x to around 120 calculations per seconds.

I personally do not see physx going anywhere as of now. In future there will be more intergrated CUDA solutions from both Nvidia and AMD/ATI no doubt, but by then they will have way better cards out there with such function, so it is pointless to get a dedicated ageia card... it sells for less than $50 on eBay if you get a good deal.
 
It should be possible, but i don't know what the tradeoff is for an 8800gt (mine is a 9800gtx but they're supposedly similar performers anyway).

There should be a control panel (Sorry, can't remember what i installed to get it) that shows your PhysX settings. Anyway, google for the nurien demo and try comparing the frame rates with and without nVidia PhysX.

@lifanus
When Ageia's PhysX was introduced, we wanted it to be built into the video card instead (even start calling it a Gaming card once they did). Now i got no complaints :) Nurien was a pretty cool DX9 PhysX demo.
 
It should be, i wasn't really paying attention. I was just downloading 3D tech demos and when i came across Nurien, that's when i checked and found 'NVIDIA PhysX' in the control panel (I honestly didn't notice it before!) :) I'm not sure but it was most likely installed when i updated my drivers.

21361128qm4.jpg





PS: It's a new addition.

http://www.nvidia.com/object/winxp_178.13_whql.html

Why don't you try running nurien and let us know the difference on an 8800:)
 
yup, it's in the new stable driver but it goes from a 30mb download to a 90mb download.
 
oh, i see whats going, i'm still using the 169 driver thats why i'm not getting it. i'm gonna do like you sed: get nurien and get the new driver.
 
just an FYI, its been shown that cards as weak as mine (when dedicated to physx) outperform the add-on Physx cards out there

So, you can do like most people (and what Im gonna do) and get a good single card (like the 260) and then keep something low (like an old 9600 or a 8800gt gts or gso) for a dedicated physx card and it can run more monitors if u need

I did a batch of tests with my Q66 and my current rig

Q66 physx 1 card game < 1 card game+physx < SLI game + physics < 1 card game 1 card physx

obviously, the testbed is limited, but Physx will develop over the next year or two into something more (now that Nv can actually lose money from it, it will grow). Im very excited about Physx, love the few games that use it now and cant wait for more, and will have a dedicated Physx Nvida card for it.
 
My frame rate

Nurien (PhysX)
Ave: 34
Max: 54
Min: 26

Nurien (Software)
Ave: 13
Max: 35
Min: 10

That's in XP, and for some reason, it's slightly faster when i ran it on Vista (I have Vista on another harddrive).
 
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