GTX480 and physics

EnergyFX · Sep 3, 2010

So... I have a pair fo GTX480s in SLI and I'm curious how much of a difference slipping in a low end gpu to dedicate for physics might make. For the record... yes I know I'm going overboard... but I love excess. I just wonder if there is so much power already in the system that adding a dedicated PPU would make no difference at all or perhaps cause a performance hit from putting physics computing on a different pcie channel.

If there is actually some decent performance to be gained here... what would be the best modern GPU to look at for dedicated PPU? Perhaps the new 420 coming out soon?

{JNT}Raptor · Sep 3, 2010

From the 2xx series up a section of the core is dedicated to physics If I'm correct.......so it wouldn't benefit you in the least seeing as how you have 2 beasts in there already.

You could always borrow a friends Nvidia GPU and test......but I don't think you'll see any performance increase though.

Hope it helps.

TheLaughingMan · Sep 3, 2010

That is already too much power. Any performance gain would require a GTX 260 or better and even then the gain would be very minor. If you are running your games with VSync, gains will simply be non-existent.

newtekie1 · Sep 3, 2010

I've tested both Batman and Mafia, the two biggest PhysX games out right now, and with my GTX470 adding a dedicated PhysX card made absolutely no difference.

EnergyFX · Sep 3, 2010

Thanks for the eductation fellas! Exactly what I was looking for!

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System Name	n.audBl
Processor	E8500 @ 3.80GHz
Motherboard	ASUS Striker Extreme
Cooling	Full liquid (everything except power supply)
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GTX480 and physics

EnergyFX

{JNT}Raptor

New Member

TheLaughingMan

newtekie1

Semi-Retired Folder

EnergyFX