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Worth Getting a 3.0 card for a 2.0 mobo?

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  • Graphics Cards
  • PCI Express
  • Graphics
Last response: in Graphics & Displays
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December 11, 2012 3:26:58 PM

Hey all,

I'm modestly upgrading an older PC which has one PCI Express 2.0 x16 slot. I'm considering buying a 3.0 x16 video card (such as the Radeon 7770). Since the older mobo isn't 3.0 I'm assuming it won't benefit from some of the improvements.

Bottom line: is it worth it for me to buy the 7770?


P.S.--no, I'm not interested in upgrading the mobo at this time, but may definitely do so in the future.

More about : worth card mobo

a b U Graphics card
December 11, 2012 3:30:35 PM

Yes, its worth it, if there is a difference it would be a minimum.
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a c 291 U Graphics card
December 11, 2012 3:50:17 PM

There will be absolutely no difference for HD 7770 on which board it runs. It's too weak to take advantage of PCIe 3.0 slot.
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a b U Graphics card
December 11, 2012 4:01:47 PM

There are no cards that are even capable of saturating the full bandwidth of the PCIe2.0 slots.
Even if you put a GTX 690 into a PCIe2.0 slot, you would see maybe a 5% fps drop using THAT card. (Two 580's onto one PCIe2.0 slot basically)

Absolutely nothing to worry about with this.
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a b U Graphics card
December 11, 2012 4:08:32 PM

count_rugen said:
Hey all,

I'm modestly upgrading an older PC which has one PCI Express 2.0 x16 slot. I'm considering buying a 3.0 x16 video card (such as the Radeon 7770). Since the older mobo isn't 3.0 I'm assuming it won't benefit from some of the improvements.

Bottom line: is it worth it for me to buy the 7770?


P.S.--no, I'm not interested in upgrading the mobo at this time, but may definitely do so in the future.


GTX 650 ti is better at the same Price point.

nvidia-geforce-gtx-650-ti-review-gigabyte-vs-msi-vs-zotac-geforce-gtx-650-ti-vs-radeon-hd-7770

I know the drivers are too old and not up to date, but that difference has quite a gap.

The difference on PCIe 3.0 and PCIe 2.0 is very small. A couple of fps in various games.
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