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Why is a card like the gtx 480 only able to support 2 displays at once? - Page 2

post #11 of 13
Also could be a patent thing - AMD/ATI may have had the patent to get 3 displays of one card? I doubt it though!
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post #12 of 13
I can't remember all the technical aspects of it. But it is due to the two technologies being implemented in 2 very different ways.

AMD went and have theirs setup through hardware implementations as NV went the software way to obtain it.

While NV's is more efficient as far as performance goes it costs more to do.

AMD's is cheaper for the consumer but there is no doubt in the performance area that it lacks. Now if you go with 2 AMD cards like NV has theirs setup to be mandatory then performance of the two can be compared.

As has been said, it is mainly due to Display Port. The big thing about Display port is you don't have to have a separate clock to drive each display. You do with DVI and HDMI. So if you only have two internal clocks as NV you can only support up to 2 displays.
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post #13 of 13
Only opinion as I really don't know, only Nvidia would.
I really think ATI just got the drop on Nvidia this time around. It def. is a hardware limitation. When these cards came out they were on top of everything and Nvidia actually delayed the release of their cards for another 8 months? because what they had couldn't compare to the 5xxx offerings. They were much more concerned with having the highest framerates then having 3 monitors as they are supposed to be the "FPS kings" and they didn't want to lose that title so the tri monitor was ignored to try and beef up performance.

This has always been Nvidia's gameplan. Picture quality was always secondary to speed.
Not saying the picture quality isn't there or even putting nvidia down in any way, just saying the speed is their priority over the "extra's" so to speak.
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