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Radeon 7970 on a PCIe 2.0 socket...

Last response: in Graphics & Displays
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March 16, 2012 10:42:55 PM

Is it worth it to put a 3.0 PCIe Graphic card on a motherboard with 2.0 PCIe socket?

Im talking about this "XFX Radeon HD 7970 " on my ASUS Rampage III Extreme Republic of Gamers...

Or will the 2.0 PCIe just slow down 50% or so of my graphic card performance?

More about : radeon 7970 pcie socket

a c 254 U Graphics card
March 16, 2012 10:54:13 PM

It certianly won't slow down 50% but you just won't get the full performance of the card since it was designed for the Pci-e 3.0. You will see a very good performance increase over what you have now for sure.
What card do you have now?
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March 17, 2012 12:12:29 AM

inzone said:
It certianly won't slow down 50% but you just won't get the full performance of the card since it was designed for the Pci-e 3.0. You will see a very good performance increase over what you have now for sure.
What card do you have now?



I Have a Radeon HD5970

And I want to buy 2x *Radeon 7970" so im ready for the big game DIABLO3 i may :) 

I have also considderred to buy another HD5970 if the 7970 solution wasnt worth it, and make a crossfire but the two graphic cards cost the same... almost $800 in the danish stores :) 
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March 17, 2012 12:22:11 AM

HD7970 will work on PCI-E 2.0 with full power.

However, you can max out Diablo 3 even on a single HD6850. Why would you need 2 of the most expensive graphic cards to do it? Unless you're a troll that just wants attention.
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March 17, 2012 12:29:17 AM

sephirothmk said:
HD7970 will work on PCI-E 2.0 with full power.

However, you can max out Diablo 3 even on a single HD6850. Why would you need 2 of the most expensive graphic cards to do it? Unless you're a troll that just wants attention.


hehe you got a point! Im just affraid of lagg in diablo3 after i tryed laggy game "Rage" on my computer with:

4.2 Ghz Cpu
16 GB Ram
HD5970 Graphic card

hehe but I will listen to you and only buy one :)  thx for advice...
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a b U Graphics card
March 17, 2012 12:36:21 AM

Not even 2 7970 can saturate PCIe 16. The performance difference between 2x8 and 2x16 does not exists (maybe less than 1%)
http://hardocp.com/article/2010/08/23/gtx_480_sli_pcie_...

same can be said about PCIe 3.0 and 2.1 or 2.0
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a b U Graphics card
March 17, 2012 1:27:56 AM

D3 is pretty much not going to lag anyone's PC if they have something even moderate.
The game doesn't require much power at all to max out.
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March 24, 2012 12:38:36 PM

Ok perheps I cant see any difference in Diablo3 with one or two 7970 cards , and its only for benchmarking runs atm :)  ... but I can avoid Lagg in games in the next 3-4 years ... instead of 1-2 years when the new games arrives...

when i bought my HD5970 it was the newest on the marked and 2 years later it sucked playing the game "Rage" ... and those new games :) 




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April 3, 2012 8:46:35 PM

Best answer selected by p4n4m4.
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