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PhysX - Is it worth having a dedicated GPU for running it?

No it is not worth getting a separate card for PhysX !!!

Go SLI with what you have got and when you get a PhysX game let NCP auto decide which card to use.

Doing the above will give the maximum use and bang for buck for your hardware.:)
 
Kaapstad said:
No it is not worth getting a separate card for PhysX !!!

Go SLI with what you have got and when you get a PhysX game let NCP auto decide which card to use.

Doing the above will give the maximum use and bang for buck for your hardware.:)
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I agree with this. I don't think physx is used in most games
 
Last i tested dedicated physx using a 640 gt paired with my current 780 i got higher frames but more stutter and worse sudden drops in Borderlands 2. granted that game was never really had that good a performance with PhysX enabled. Dunno if it would still be the case today.
 
Kaapstad said:
No it is not worth getting a separate card for PhysX !!!

Go SLI with what you have got and when you get a PhysX game let NCP auto decide which card to use.

Doing the above will give the maximum use and bang for buck for your hardware.:)
Click to expand...

The person with 4xTitan X giving advice on bang for buck - I like it :p

I don't think it is worth getting a separate card myself but if you have a spare old card that is up to the job or happen to win a card in competition(!) then it might be worth a go for a couple of games :)
 
stooeh said:
The person with 4xTitan X giving advice on bang for buck - I like it :p

I don't think it is worth getting a separate card myself but if you have a spare old card that is up to the job or happen to win a card in competition(!) then it might be worth a go for a couple of games :)
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Yer, I just ran it for fun and was quite surprised with the performance difference in Batman AO. I personally wouldn't recommend it but if you do run a single NVidia card and you happen to have a spare GPU laying around and you also happen to love Batman as much as me, it could be worth it :D
 
pgi947 said:
Try borderlands 2 Greg, lots of physx going ons with that :)
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Never mind the unoptimised piece of work PhysX is in BL2, even on medium it runs poorly on my 680 used as dedi PhysX alongside a 780TI, goes below 30fps.

There may be something to it in recent series, managing to run PhysX more smoothly but I'd rather do without and just grab a couple GPUs than take a huge hit in performance. But.. would miss the amazing fluid and cloth effects on high :(

Higher PhysX still in BL:TPS. It was the first title to use Ultra PhysX if you want to give any card a good workout that meets the requirements, it rules out a 1024-core 960, 128b though and the game is poor :P

We keep asking ourselves every series which GPU/s are the best combo for PhysX, and do we always have to chuck a load of GPUs at the problem? Say if I bought a Titan X/980 TI and used a 2880-core 780 TI would this guarantee smooth gameplay on the higher PhysX settings (no dips below 60fps whatsoever)? Or maybe I should buy a couple of GPUs and stop worrying about these little things :D
 
UTmaniac said:
Dig up those old G92 cards, decomposing in the loft! ;)

Am I right in thinking AMD or Nvidia "gimped" Hybrid-PhysX a while back?
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I think that was in 2011, this was a time when AMD was on the top of it's game and giving Nvidia a really hard time. TSMC and Nvidia had troubles with 40nm and Nvidia were struggling to get new cards out to compete against the 5870 and 5850. At the same time someone had finally made a game featuring Physx worth playing so people were buying up 5870's and running them along side older 5xx cards to handle just the Physx. Eventually Nvidia updated the drivers which disabled Physx if it detected a non Nvidia GPU in the system. Talk about spite.
 
dessimpson said:
Excuse my ignorance but how do you do this?
I've got a 980 in my old case since I upgraded my whole PC last month with X99 and a Titan-x.
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Just pop the tatty 980 in the second slot (as if you was running SLI) and then fire up the machine. In the NCP, goto "Configure surround - PhysX" and choose the 980 to do the PhysX and apply :)

Don't attach the SLI ribbon though.
 
ubersonic said:
The funny thing is that with quad Titans you will probably get better performance running tri-sli + PhysX than by running quad sli lol.
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Strange thing is the NVidia driver support for games like Batman AO and MLL is some of the worst I have seen for Quad SLI. NVidia should be totally ashamed by this and get it sorted as these games are rubbish on more than 2 cards.

What is the point of NVidia plugging something like PhysX when they can not get the basics right like using all the cards.

Why do we get top notch Quad SLI support in AMD sponsored games yet something like Batman can not do this. Worst still MLL is a horrible stutter fest lol.

From what I can see NVidia multi GPU driver support is good on AMD sponsored games and rubbish on NVidia sponsored ones, this has got to be some kind of joke.
 
Sadly PhysX has nothing to do with physics in games I am afraid. The techdemos are miles away from what you really get in games, it is more about thousands of sparkles, splinters and tons of smoke than real physics. The bad thing is that it is limited to Nvidia hardware, affects your graphics card's performance and can't do anything better than other engines like Bullet, Havok or dedicated ones like in Crytek's Crysis series.
 
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