where else to buy mobo and processor
09-18-2008, 01:21 AM
#31
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Join Date: May 2006
Posts: 5,322
Re: where else to buy mobo and processor
Originally Posted by Jcushing
regarding crossfire performance, 2 cards does not = 2x the performance. crossfire/sli is highly dependant on the architecture of the GPU, and the driver support. poor drivers can sometimes = less performance than a single card.
Originally Posted by Jorsher
You of course won't get the 100% gain from adding the second card,
Originally Posted by Jcushing
honestly, having owned a single 4850, i can say that unless you happen to use a 32" monitor running 2kx2k+ resolutions, theres very little reason to go SLI/CF. most people on a 19-22" LCD will be at 1680x1050 and a single 4850/4870/9800gtx+/gtx260 will all run every game out there at those resolutions no problem!!!
Originally Posted by Jcushing
oh and yes you can mix and match cards BTW but they both need to be running the same speeds
09-18-2008, 03:49 AM
#33
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Join Date: Sep 2007
Posts: 1,305
Re: where else to buy mobo and processor
Originally Posted by Jcushing
oh and yes you can mix and match cards BTW but they both need to be running the same speeds
Originally Posted by Joseph Davis
Wrong.
SLI - Same cards
Crossfire - better card first then the lesser card 2nd, run your output off the better card
09-18-2008, 11:03 AM
#36
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Join Date: Dec 2002
Posts: 604
Re: where else to buy mobo and processor
i got my info from AMD's site http://ati.amd.com/technology/crossfire/faq.html
" 5. What happens when graphics cards with varying memory speeds and engine clocks are paired together?
A. In this scenario, overall performance will be adjusted to match the memory speeds and engine clocks of the lower clocked card. To obtain ideal performance, graphics cards should be paired correctly. "
maybe theres something different avalible with the 4k series but im unaware of it.
" 5. What happens when graphics cards with varying memory speeds and engine clocks are paired together?
A. In this scenario, overall performance will be adjusted to match the memory speeds and engine clocks of the lower clocked card. To obtain ideal performance, graphics cards should be paired correctly. "
maybe theres something different avalible with the 4k series but im unaware of it.
09-18-2008, 12:04 PM
#38
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Join Date: May 2006
Posts: 5,322
Re: where else to buy mobo and processor
It wouldn't surprise me if they did "equalize" the two cards since it would be much easier to divide the workload evenly, was just hoping ATI would have devised a clever way to divide based on the power of each individual card.
Either way, I'll get a 4870 now and later when it's not enough, I'm sure I can pick up another 4870 for next to nothing.
Either way, I'll get a 4870 now and later when it's not enough, I'm sure I can pick up another 4870 for next to nothing.
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