Physics Cards

[evilbix]

I was curious if anyone actually had an explanation as to why the physics cards can hinder performance. Are they maxing out the pci bus and just slowing down the computer, or is it more of they're being maxed out and can't calculate any faster?

 

[Ika]

They're hindering performance because the physics mean more objects, but that also means more objects to render for the graphics card.

 

[LittleNemoNES]

I'm not sure what's really the problem but it seems to be the PCI bus and it also is a huge flop, IMO. Incompetent engys to get that kind of crap performance for $200

 

[Maxspeed996]

Originally posted by: Aflac
They're hindering performance because the physics mean more objects, but that also means more objects to render for the graphics card.

I thought that was the whole purpose behind having the physics card , where it will take all of the physics's calculations load off of the GPU , enabling the Graphics card to focus on it's job , which is rendering frames.

I'm not for sure if even with the best optimized gaming code , with a super high end machine , it would be possible to saturate the PCIex16 bus.

 

[EvanAdams]

I thought the idea of these new sli systems with 2 sli pci-e 16x and one 1x was for a 1x physics card?

 

[Golgatha]

Originally posted by: Maxspeed996

Originally posted by: Aflac
They're hindering performance because the physics mean more objects, but that also means more objects to render for the graphics card.

I thought that was the whole purpose behind having the physics card , where it will take all of the physics's calculations load off of the GPU , enabling the Graphics card to focus on it's job , which is rendering frames.

I'm not for sure if even with the best optimized gaming code , with a super high end machine , it would be possible to fill the PCIex16 bus.

Actualy the PPU is supposed to take work off of the CPU, which I'm sure it does. However, the GPU now has more objects to draw and thus slows down your FPS. I forsee the PPU integrated into the GPU and dual graphics cards becoming more the norm.

 

[EvanAdams]

Take work of the CPU? I was under the impression that we are not really CPU limited right now. More than enough Ghz. It is the Gfx cards that are limiting. Am I wrong when you get to the highest end sli setups?

 

[Maxspeed996]

Originally posted by: Golgatha

Originally posted by: Maxspeed996

Originally posted by: Aflac
They're hindering performance because the physics mean more objects, but that also means more objects to render for the graphics card.

I thought that was the whole purpose behind having the physics card , where it will take all of the physics's calculations load off of the GPU , enabling the Graphics card to focus on it's job , which is rendering frames.

I'm not for sure if even with the best optimized gaming code , with a super high end machine , it would be possible to fill the PCIex16 bus.

Actualy the PPU is supposed to take work off of the CPU, which I'm sure it does. However, the GPU now has more objects to draw and thus slows down your FPS. I forsee the PPU integrated into the GPU and dual graphics cards becoming more the norm.

He's right , I meant to say that it takes the physics calculations off of the CPU. Which will help it do it's job more efficiently.