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post #411 of 539
That's a fast card!
 
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post #412 of 539
Quote:
Originally Posted by NavDigitalStorm View Post

Yeah faster than two 290x CF at stock settings no OC

We got to get to the bottom of this. My theory that it's "nvlink light" must be appreciated. I will have it clear when this war is over.
Edited by fateswarm - 4/16/14 at 6:35am
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post #413 of 539
Quote:
Originally Posted by NavDigitalStorm View Post

Yeah faster than two 290x CF at stock settings no OC

Have you ruled out any possibility of throttling on both setups? Same clocks on all cards, at all times?

Same memory on both parts?

I see slight performance differences between different samples of 290X because of different throttle points and different memory tables between Hynix and Elpida.
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post #414 of 539
Hello NAVDigitalstorm/anyone that can help

Hope you can help me. I am having a hard time finding a 1.2 mini displayport to displayport cable(6ft). Do you have a recommendation that is in stock? What cable did you use when testing at 4K resolution 60hz?
Will a 6 inch adapter work fine with a 1.2 display port to display port cable?
Thanks,
Cool Mike
Edited by Cool Mike - 4/16/14 at 5:27am
post #415 of 539
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post #416 of 539
Thanks. Ordered this one last night. My only concern is I will be running 4K@60hz. I hope this adapter will be alright.


http://www.amazon.com/gp/product/B0055PKO3I/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
post #417 of 539
Quote:
Originally Posted by fateswarm View Post

Quote:
Originally Posted by NavDigitalStorm View Post

Yeah faster than two 290x CF at stock settings no OC

We got to get to the bottom of this. My theory that it's "nvlink light" must be appreciated. I will have it clear when this war is over.

... They used a PLX PEX8747. It's a 48-lane PCI-e 3.0 switch divided into x16/x16/x16, with one x16 to the PCI-e controller, and one to each GPU die.

It's really not that complicated. Just about every review calls out the chips existence (which we knew had to be there) and several called it out by name. You can read the chip yourself.


Having the chip local would reduce latency and help with higher FPS a little bit, especially at lower resolutions, but more to the point is the 295X2 is simply clocked higher, and at least reference 290Xs do not like running at their full speed with one card, let alone two. His own Temp graph at the bottom showing the 290X at 94C confirms this.

Why you are talking about a proprietary nVidia technology that isn't even used by nVidia themselves yet in reference to an AMD dual GPU card that already exists, I don't know.
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post #418 of 539
Quote:
Originally Posted by KyadCK View Post

Having the chip local would reduce latency and help with higher FPS a little bit

That would be the most obvious explanation yes. But is that so pronounced on similar cards?
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post #419 of 539
I want to test this card at 1440p to see how much faster it is at smaller resolutions.
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post #420 of 539
Quote:
Originally Posted by fateswarm View Post

Quote:
Originally Posted by KyadCK View Post

Having the chip local would reduce latency and help with higher FPS a little bit

That would be the most obvious explanation yes. But is that so pronounced on similar cards?
Quote:
Originally Posted by KyadCK View Post

... They used a PLX PEX8747. It's a 48-lane PCI-e 3.0 switch divided into x16/x16/x16, with one x16 to the PCI-e controller, and one to each GPU die.

It's really not that complicated. Just about every review calls out the chips existence (which we knew had to be there) and several called it out by name. You can read the chip yourself.

Having the chip local would reduce latency and help with higher FPS a little bit, especially at lower resolutions, but more to the point is the 295X2 is simply clocked higher, and at least reference 290Xs do not like running at their full speed with one card, let alone two. His own Temp graph at the bottom showing the 290X at 94C confirms this.

Why you are talking about a proprietary nVidia technology that isn't even used by nVidia themselves yet in reference to an AMD dual GPU card that already exists, I don't know.

Edited by KyadCK - 4/16/14 at 7:54am
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