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My quick review of 5870+GTS250 physx on PciEx 1.0 4x !!

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#1
My i5-750 is overclocked to 3.6, GPU stock clocks. the only physx game that i have was Batman Arkham Asylum.

5870+Physx OFF 1600x900



5870+GTS 250 Physx HIGH



Fluidmark



As you notice, the second port is providing good power to the physx card altought it's a 1.0 4x port.
 

Mussels

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#2
4x is enough for almost all video cards, w1zzard proved that with his 5870 and GTX 480 testing.

That said, you proved a long standing point of mine with regards to PhysX... slows everything down for very little visual gain.
 
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#3
i think he proved this on 2.0 ports, mine is 1.0 4x that's equivalent to 2.0 2x and from his results that impact will be between 20-25 %
 

Mussels

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#4
i think he proved this on 2.0 ports, mine is 1.0 4x that's equivalent to 2.0 2x and from his results that impact will be between 20-25 %

yeah... for a high end card. GTS 250 is less powerful than a 5870, so that 20% is greatly reduced... i'd say down to almost nothing.

This isnt to say your testing is worthless or whatever, i'm just saying its agreeing with the trends.
 
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#5
i have see you defending this fact for a long time, i think with 4870 CF :)
 

Mussels

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#6
i have see you defending this fact for a long time, i think with 4870 CF :)
yup.

16x/4x on PCI-E 1.1 was only 12% slower than on 16x/16x 2.0 when i tested it. I may well have been CPU limited as well at the time, but the point still stands that 4x 1.0 aint a huge hit - especially not from single GPU cards.
 
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#7
I've seen somewhere that even a PCI-E 1.0 1x is enough for any GPU to do PhysX.
 

erocker

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#8
Realistically a single core of my CPU should be enough to do physics. Nvidia is brilliant with marketing and well, I'm just not going to get into it.

I will say that the Rocket Sled demo for the GTX4XX series is impressive in terms of physics.
 

bebbee

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#9
how u made the physix work with ati card as the primary card and use nvidia card as secondary?
can you explain?

because i wil upgrade to a 5830 or 5850 in the future and want to use my old GTS 250 as a phyisx card.
 
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bebbee

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#11
finndrummer: i want to upgrade my OC gts 250. should i buy the ati 5830? how is it performing with new drivers now?
 
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#12
your resolution ?
 

brandonwh64

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#13
I need to update my thread and see if theres a new physx patch