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Will pcie 1.0 run crossfire 4770????

Last response: in Graphics & Displays
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September 9, 2009 4:18:47 AM

Hi all,

I have a Asus p5w dh Deluxe and i believe it pcie 1.0. It supports crossfire.

If I bought 2 4770 is it goin to work correctly. I currently have a Q6600 and a 8800gts 320meg. So would like to upgrade to 2 4770.




Appreciate all your help :) 

a b U Graphics card
September 9, 2009 4:29:01 AM

You might want to consider upgrading to just a single 4870. It's a really good card for somewhere in the $140 - $180 price range. Just wanted to throw that out there.

PCIE 2.0 cards do work in 1.0 slots. I'm not %100 that crossfire would work, but i don't see why it wouldn't.
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a c 169 U Graphics card
a b Ĉ ASUS
September 9, 2009 6:30:27 AM

Hello and welcome to the forums :) 
Yes a HD 4770 would work fine in your system since PCI-E 2.0 is backward compatible with PCI-E 1.0,but i agree with Fallen Sniper,get a HD 4870/HD 4850 instead
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a c 106 U Graphics card
September 9, 2009 5:43:12 PM

Oh yeah, it will work. I believe that board runs both slots at 16x so there shouldn't be a noticeable performance difference from not using PCI-E 2.0. Two 4850s would provide you with slightly better performance and be a little cheaper, at the cost of using a bit more power of course. Anyway just make sure your PSU can handle whatever GPU(s) you upgrade to.
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September 11, 2009 3:17:31 AM

That all good, but I really need to know from what you think.

My mother board is def pcie 1.0 16x (not pcie2) when run in crossfire manual says both ports will run at 8x.

is 8x enough to run both these cards?

I wanan buy em today if i can lol
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a b U Graphics card
September 11, 2009 8:51:01 AM

Quote:
Get the 4770's. Read this article

http://www.hardocp.com/article/200 [...] aluation/1


Yeah but he could get a 4870 now and a 4870 later. Buying two for crossfire right off the bat is just going to put you behind in money. Next time you want to upgrade you'll have to buy a newer card (more expensive). Whereas buying a 4870/4890 now, then buying another a year from now when it will be even cheaper = cheaper overall.

If both ports run in 8x...that will bottleneck your performance somewhat when combined with the 2.0 cards in the 1.0 slot. Just another reason to buy a single card in my opinion.
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a b U Graphics card
September 11, 2009 8:57:01 AM

Agree with Fallen on this one. better bet will be the go for single 4870/4890 now and then another single in about 6 months when they are dirt cheap do to 5000 series as well as price drops to the new cards.

The prices will go down soon on the 48XX cards and then when prices come down on the 58XX it will come down again on the older ones.
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