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5870+5970 on p55pro

Last response: in Graphics & Displays
January 12, 2011 5:45:18 PM

Hi guys I had previously decided to sell my 5870 and go with a new 580 gtx. However, I'm not having the greatest luck with my craigslist posting and would rather not use ebay. I'm willing to just go with a 5870 for a while but as I'm seeing prices plummet on first gen dx11 cards, would I see a significant gain from adding a 5970 to the mix? I figure the price will continue to drop once the new dual gpu cards arrive and maybe I'll be able to grab one for sub 400$ within a few months. The only issue I have is how the 8x8 limitation on my mobo will relate to real world gaming performance. Will the 5970 act as one gpu? I'm currently working&going to school full time and would rather not just "throw away" my 5870. Thanks i5 750@3.8, 5870 1 gb, p55pro 1080p

More about : 5870 5970 p55pro

January 12, 2011 7:41:45 PM

Pretty much what I want to know is will the 5970 and 5870 run 8x8 or 8x4x4? Because if it's trifire I wouldnt gain performance on my mobo. Thanks
a c 216 U Graphics card
January 12, 2011 8:59:52 PM

I'd go with dual 5870's rather than adding a 5970. A lot of the time, trifire doesn't help much if at all. It'll save you some money too. x4 performance in crossfire with a 5870 on the p55 boards can cause about 30% loss in performance.
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a c 214 U Graphics card
January 12, 2011 9:04:40 PM

Going with another 5870 is a wiser choice.Unless you intend to buy another 5970 in the future.
January 12, 2011 9:10:47 PM

Yeah my favoured solution would be to sell the 5870 and get a 580 gtx. But so far it looks like I might just crossfire with another 5870 with this build. Would the 5970 act as two cards then?
a c 216 U Graphics card
January 12, 2011 9:12:24 PM

The 5970 is two GPU's. Each GPU on the card has it's own memory. The only difference between two 5870's and a single 5970 is the 5970 shares the PCIe slot and has lower stock clock settings, partly due to heat issues.
January 12, 2011 9:15:43 PM

Thanks for the quick answer. Thats what worried me that it would drop tp x4 and give me negligible returns