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  #1  
Old 25-04-12, 03:27 PM
Slav2012 Slav2012 is offline
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Ok so Ive got my old rig outa the garage as i want to test it and have some fun with it. So specs are below

XFX nForce 780i SLI motherboard

Intel Core 2 Quad Q9400 2.66Ghz

Mushkin/Ocz 8GB DDR2 800mhz

Evga Gtx 285 superclocked Edition

Inno3D Gtx 285

Thermaltake Toughpower 750w modular psu

Ok now thats the stats or atleast what matters. My current Power needs are 595w on average with the current system. My motherboard has 3 way sli compatibility or i can just use the 3rd pcie slot to use a physx card while my gtx 285 run in sli.

So my question is what card is good enough for purely physx along side my sli gtx 285.

Now concider i have a 750w psu so this will barely sneak in but i can change the psu if i have to the main part is what is good enough as a physx card.

Would a 9800Gt or 9600Gt cut it? or maybe even a gts 450.

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Old 25-04-12, 04:04 PM
marsey99 marsey99 is offline
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96gt would do just physx but idk if it would just be better doing both on your current gpu as others have tested it in the past and adding a 2nd weaker card has been known to slow it down overall.
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Old 25-04-12, 05:41 PM
KING_OF_SAND KING_OF_SAND is offline
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GT430
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  #4  
Old 25-04-12, 05:41 PM
Matthias2437 Matthias2437 is offline
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Yeah a 9800 should be good. I had my GTX 9800+ in my gaming PC for a while with 2x GTX 570s and it some things I would get a slight performance increase. Not really that noticeable though.
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  #5  
Old 25-04-12, 05:41 PM
Techie103 Techie103 is offline
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I would definitely lean towards the GTS 450 for physx.
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Old 25-04-12, 06:26 PM
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Rastalovich Rastalovich is offline
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In an sli rig, a separate physx card should be slower.
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Old 25-04-12, 07:09 PM
KING_OF_SAND KING_OF_SAND is offline
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Quote:
Originally Posted by Rastalovich View Post

In an sli rig, a separate physx card should be slower.
It's hit and miss.
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Old 26-04-12, 03:29 AM
airdeano airdeano is offline
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wasnt that kinda the thinking was to use an older card, until the appropriate card was located to complete the package?

usally i found that a bit-rate compromise was the "bottle-neck" jumping from a 192-380 bit-rate to a physx 32-128 actually

slowed the performance down. but consistant bit-rate (128 with other 128's) cards seemd to play well with each other.

airdeano
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Old 26-04-12, 09:40 AM
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equk equk is offline
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I thought there were tests done that proved that having a slower 'dedicated' physx card actually hindered and bottlenecked the system?

*goes to find thread with video*

[media]
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Old 26-04-12, 09:46 AM
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Rastalovich Rastalovich is offline
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Is what I thought, but I don't know if it was tested on something greater than 2x285.

If it were 2x470 or 480, I'd definitely say not to bother.
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