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PCIe 2.0 and 3.0 GPU

Last response: in Graphics & Displays
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May 30, 2013 9:06:29 AM

Hello,

I'm currently looking into either buying a GTX 680 or a GTX 770 to replace my rather old GTX 560Ti, I will be aiming to run games such as BF3 and BF4 at 120fps.

However, when looking into the graphics cards, I soon realised that they were designed to be used with PCIe 3.0. This is a problem as my current motherboard has PCIe 2.0 ports. I know that there is backwards compatibility between PCIe 3.0 and 2.0, but how much will this effect the performance of the cards? Will I be losing potentially 20+fps or 0-5fps?

Replacing my motherboard wasn't exactly one of my top priorities at the moment, replacing the graphics card and monitor will be costing me around £600-£700!

Any help/wise words would be appreciated :) 

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a b U Graphics card
May 30, 2013 9:18:07 AM

If you have a PCIe 2.0 slot, you'll lose no performance at all. You only lose performance if you have a PCIe 1.0 slot. This is because cards at the moment (except perhaps the GTX Titan) don't even fully utilize the bandwidth of PCIe 2.0 - they are branded as "PCIe 3.0 compatible" simply for marketing and gimmick reasons. You'll be fine! :D 
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May 30, 2013 11:31:31 AM

JRAtk94 said:
If you have a PCIe 2.0 slot, you'll lose no performance at all. You only lose performance if you have a PCIe 1.0 slot. This is because cards at the moment (except perhaps the GTX Titan) don't even fully utilize the bandwidth of PCIe 2.0 - they are branded as "PCIe 3.0 compatible" simply for marketing and gimmick reasons. You'll be fine! :D 


Thanks for your help, very much appreciated. Now to endure the waiting game that is waiting for the prices of the 'old stock' to drop...
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a b U Graphics card
May 30, 2013 11:48:19 AM

adrastusUK said:

Thanks for your help, very much appreciated. Now to endure the waiting game that is waiting for the prices of the 'old stock' to drop...


No worries! :D 
Aha, I know that game very well :lol:  it is a game worth playing though!
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