Dedicated Physx Card

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Alex Zakka

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Aug 20, 2013
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Hey everyone! My question is plain and simple, i got a new pc and i wanna use my Old GPU as a dedicated Physx card, is this possible on my system and is it a good idea ? Old Card - 8800 GTS
Thank you for your time! :D

PC Specs-
Motherboard is a Gigabyte GA-970A-UD3 AM3+
AMD FX-6300 Processor Clocked at 4.1 Ghz.
8 GB of Corsair Vengeance RAM Clocked at 1600 Mhz.
Asus GTX 760 DCOC2
HDD's are-
Seagate 2 TB
2x WD Black 320 GB
 
Solution
bccorrupt
Your motherboard has a 2nd pci-e x4 slot that will work fine. The motherboard does not need to support SLI for you to be able to use a 2nd card for Physx. You'll just go into Nvidia control panel under surround/physx and choose to have the 2nd card run physx after you install drivers for the card.
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bccorrupt

bccorrupt

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Apr 18, 2012
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That is not true. You can use two different cards, one for the main GPU and one just to do Physx and they do not have to be in SLI or the same model.

 
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bccorrupt

bccorrupt

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Apr 18, 2012
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Your motherboard has a 2nd pci-e x4 slot that will work fine. The motherboard does not need to support SLI for you to be able to use a 2nd card for Physx. You'll just go into Nvidia control panel under surround/physx and choose to have the 2nd card run physx after you install drivers for the card.
 
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Solution
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Alex Zakka

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Aug 20, 2013
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Thank you man, Where can i test the new settings ? I did this and i wanna see if there are any improvements ;D Please let me know if you have any idea coz im new to this!
 
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Alex Zakka

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Aug 20, 2013
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Would be an idea to test a game with and without Physx and i should expect same FPS ?
 
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Alex Zakka

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Aug 20, 2013
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Right sounds good :D Thanks man, would it be a good idea to get a GTX 750 Ti and use it for Physx ? Since i can never SLI, i think the best idea is to get another card to take some of the load off right ?
 
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bccorrupt

bccorrupt

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Unless you play lots of games off of the physx list(which is pretty small and doesn't seem to be increasing very fast) $150 is a pretty big investment for a physx card for a $250 main card. You'd probably be better off doing the opposite. Wait for the newer cards to come out and invest in an 860 or 870 and use your 760 for physx.
 
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Alex Zakka

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Aug 20, 2013
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My friend, to my surprise, my performance got worse as i used the GT 8800 for physx,
Same settings used on both tests,
GTX 760 Alone with High Physx enabled in BL2 - http://gyazo.com/d806f94db52e2a6af39bdb37c1a9881e
Same level played with GT 8800 GT Dedicated Physx - http://gyazo.com/b005f669de0afe240f5804163b7a1184

The frame rate dropped to unplayable once i started shooting my guns, any ideas ?
 
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Alex Zakka

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Aug 20, 2013
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Sounds like a plan for the future, but i think its a bigger priority for me to get a better CPU like a FX-8350 or so before thinking of a GPU upgrade as its already bottlenecking some games. I have my friends run Borderlands 2 with a i7 paired with a GTX 660 Ti much better than i run it with the 760, i cant even get it up to max settings here alot of things turned down but they max the game out and still get higher fps than me, including Physx. So my only deduction is that my CPU is the problem.
 
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Alex Zakka

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Aug 20, 2013
58
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10,645


Alright man, thanks for your help once again :D Good day to you! :D
 
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