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GTX 280 impulse buy. Physx on old ultra. dual 24's?

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Started having buyers remorse before I even installed it, it'll be here tomorrow.

My 8800ultra was seeming to show its age *probably just needs a good cleaning* and Newegg had a pretty decent price on a 280ssc so I jumped on it. (then found out buy.com was selling some at $200, grr):twitch:



I heard the GTX280 was beating two 8800gtx's and figured that it made no sense to upgrade to an sli board to get something that'll only run a little faster than the 280. On Ebay, I still see ultra's selling for around $180. Though I think it'd run it, my psu is only rated for two 8800gtx, not ultra's so that was another factor keeping me from sli. $180 (I know I could probably get one for less) for an Ultra and another $200 mobo..

But I paid $650 :eek: for my ultra and I keep reading about people using 2nd video cards for physx.

What does a 2nd card for physx do exactly? PSU permitting could I run it for this purpose with minimal power requirements. Would it even be worth it? I've read people sli'ing 200 series cards and using other cards for physx.

I'll likely sell it of course, but just wanting some input or maybe a good link explaining it.

I also bought a 2ms 24" monitor to replace the 6ms 24" so now I'm sitting here with an 8800ultra and 24" monitor I don't need. :ohwell: Could I use the ultra and the 280 on two monitors in the same box to browse while gaming?

Thanks for any input.
 

ShadowFold

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Well to answer your PhysX question.. Not that there are any games that fully utilize PhysX yet, but any 9800GTX or higher won't need a dedicated card to render high quality PhysX scenes. But I don't think you can have both of them in and do what you are saying.. You could make the 8800ULTRA do PhysX but it would be a massive waste of energy :laugh:
 

hat

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9 series and up cards have thier own dedicated physx processing unit on-chip. Additional cards are not necessary.
 
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Gotcha. I'd hate to be without a video card or monitor for any period of time so I thought about just sticking them both in a closet for backup but that's backup overkill too. Ahh well, looking like ebay time.

I might plug both monitors in and see what that amount of real estate is like.
 

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What? So my 8800 GTS 512 is usless? Don't I see ANY performance benefit with it in my system?
 

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Yup. Wasting a shitload of power for physx. If you want it to be used better, you can send it to me and I'll gladly make good use of it.
 

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If you were my sister I'd give it to you. Upgrade her 2600XT.

But how exactly can this be? PhysX takes computational power, right? So, if I apply PhysX with just the GTX 295, it would take off of its performance, where as if I use the 8800, I wouldn't lose any performance at all. You can't tell me that the GTX 295 has a little chip on it that can do the same thing a full-fledged 8800 GTS 512 can do. And if it does, then who needs CPU's anymore..?

Damn, if this is true I need to find the cheapest card that had two DVI ports. (it's gotta be nVidia right ?!)
 
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9 series and up cards have thier own dedicated physx processing unit on-chip. Additional cards are not necessary.

Yeah occasionally people say this but I've never seen any evidence of it, a G80 and a G92 do physx with the same performance impact on UT3.
 
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