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Dedicated physX

bigjimmyauk

bigjimmyauk

bigjimmyauk

Soldato
Joined
23 Nov 2009
Posts
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Location
North Leicestershire
So who uses it and what are your thoughts on it?

just read a blog by a guy who put a 650 with his two titans and in some games it did make a difference.

Would it be worth sticking something like a 750ti with a 980 (750ti for physX) i'm using this as an example of having a spare card laying around after upgrading, not deliberately setting out your way to go buy a physX card (unless your names kaapstaad and you probably have a titan for PhysX lol, hope you read that :D)

I find the whole thing rather confusing. :confused:

http://www.volnapc.com/all-posts/how-much-difference-does-a-dedicated-physx-card-make

Mods if i cant use that link please remove it
 
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bigjimmyauk said:
So who uses it and what are your thoughts on it?

just read a blog by a guy who put a 650 with his two titans and in some games it did make a difference.

Would it be worth sticking something like a 750ti with a 980 (750ti for physX)

I find the whole thing rather confusing. :confused:
Click to expand...

Nope. Newer cards can handle both no problem
 
What increases did he get? Could you link to the tests/findings?

From what I've seen it doesn't make an appreciable difference, but I've not tried it first-hand.
 
Might be worthwhile sticking a cheap card in if you're playing Borderlands or other PhysX heavy titles a lot.

Otherwise no.
 
Its never worth having a Dedicated physX card anymore. No current games make use of it for extra effects and the speed difference isn't worth while.
 
If you've already got the GPU, motherboard slot/space, and PSU available, I'd say it's definitely worth a try to see if it brings any improvements on your system/games. If you've got to spend money on anything, I'd probably steer clear unless you solely play Batman/Borderlands/Metro.

Personally, really like the PhysX effects in Batman and find the game lacks a little something without them. I even ran a GTX460 alongside my 7970CF for a few months purely to get PhysX in Batman, but eventually having to use older, modified drivers just caused too many problems and the 460 went into one of my LAN PCs instead.
 
I have a 750 Ti lying around, got it in for PhysX and it improves the minimum fps in PhysX heavy titles with my Titan X.
 
I stuck one in when I played Mafia 2 but I've not bothered in general as there just aren't enough games that make any real use of GPU features of PhysX let alone proper use of them and that is only going to decrease with the larger part of the PhysX feature set being ported to FleX (which AFAIK you have no control over what GPU is used to process the ones that use compute functionality).

I've not seen it have much impact on performance when you have a capable main GPU but it can make the game run smoother when the main GPU(s) aren't also processing PhysX features.
 
As far as I'm aware these days you don't need to do that anymore as the cards can handle it quite well?
 
I did read a test that a guy did with Arkham: Origins that I replicated with my Titan X's.

1x TitanX as GPU + 1x TitanX as Physx

vs

2x TitanX's in SLI

Essentially you get better minimum frame-rates with a dedicated PhysX card, whereas SLI will give you better maximum framerate, but worse minimums.

Was running with DX11 features all on, 4k with 2x TXAA. Didn't drop below 60fps with dedicated PhysX
 
I did some Titan X + 970 benchmarks 1920x1080 144Hz screen.Physx is not worth extra effort these days,but if you have the gear just sitting there why not try it.




Data table for easier reading
 
bigjimmyauk said:
Would it be worth sticking something like a 750ti with a 980 (750ti for physX)
Click to expand...

Yes, depending on resolution/game you could see an FPS increase of 10+


bigjimmyauk said:
i'm using this as an example of having a spare card laying around after upgrading, not deliberately setting out your way to go buy a physX card (unless your names kaapstaad and you probably have a titan for PhysX lol, hope you read that :D)
Click to expand...

You may be joking, but in a PhysX heavy game tri-sli + PhysX will usually beat quad SLI without.


Here's an old comparison including 780 and 680 SLI results:

mainchart_fnl.jpg
 
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