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How do applications view a Dual GPU single PCB card?

post #1 of 9
Thread Starter 
I was curious about this, so let's say for example you have a GTX590, or a MARS or whatever. I know they're internally SLI'ed but does that mean applications will read them as a single video card when it's installed? Or is it still read as 2 SLI'ed cards, where the only benefit is less space being taken up in the case?
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post #2 of 9
Applications see only the drivers.
The drivers see how many GPUs you have.
And they know how to distinguish between single or dual GPUs and how to transfer the data to them.
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post #3 of 9
Sees them as they are - two separate chips with a sli interconnect, thats why you can actually disable use of one
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post #4 of 9
Thread Starter 
Ah ok, so really the best single card solution would still be a GTX580 if you were looking at a 580vs590 w/ preference to a fast single card solution.

Thanks!
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post #5 of 9
You mean single GPU.
590 is still a single PCB card eventhough it has 2 GPU's
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post #6 of 9
Quote:
Originally Posted by Defoler View Post
Applications see only the drivers.
The drivers see how many GPUs you have.
And they know how to distinguish between single or dual GPUs and how to transfer the data to them.
Quote:
Originally Posted by appleg33k85 View Post
Sees them as they are - two separate chips with a sli interconnect, thats why you can actually disable use of one
this
er well for nvidia cards
it's different for 3dfx cards
as they have 2/4/8 complete graphic cards on one board
etch has it's own vram bios capacitors and so on
and a chip that controls the cards
Edited by 3dfxvoodoo - 4/14/11 at 1:12am
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post #7 of 9
Hardware - Chinese
Drivers - Translator
Applications and OS - English

Drivers talk to the OS and hardware to tell them how and what to do.
 
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post #8 of 9
Quote:
Originally Posted by 3dfxvoodoo View Post
this
er well for nvidia cards
it's different for 3dfx cards
as they have 2/4/8 complete graphic cards on one board
etch has it's own vram bios capacitors and so on
and a chip that controls the cards
Somehow I don't think anyone is currently running 3dfx cards for their Metro 2033 kick While yes its true that there were some multi PCB cards out there, all modern ones are single PCB
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post #9 of 9
Quote:
Originally Posted by appleg33k85 View Post
Somehow I don't think anyone is currently running 3dfx cards for their Metro 2033 kick While yes its true that there were some multi PCB cards out there, all modern ones are single PCB
he did not specify how nvidia cards did it
just used one as an example
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