PCI Express 3.0, 2.0 Will I need to upgrade my MOBO

[Dathune]

Ok first off I know there backwards compatible. This not an answer I'm looking for. To which I will now as best I can ask the question. I want to update my Graphics card and need to know if I will need to update my MOBO as well. http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=9713820&SRCCODE=WEBLET03ORDER&cm_mmc=Email-_-WebletMain-_-WEBLET03ORDER-_-Deals&utm_source=EML&utm_medium=main&utm_campaign=WEBLET03ORDER this essentially the system I have with a few extras (I.E. 250 gb SSD ) The graphics card I want to get is http://www.newegg.com/Product/Product.aspx?Item=N82E16814126115. Now i've been reading the diffence between the type of connections. Summary of PCI Express Interface Parameters:

Base Clock Speed: PCIe 3.0 = 8.0GHz, PCIe 2.0 = 5.0GHz, PCIe 1.1 = 2.5GHz
Data Rate: PCIe 3.0 = 1000MB/s, PCIe 2.0 = 500MB/s, PCIe 1.1 = 250MB/s
Total Bandwidth: (x16 link): PCIe 3.0 = 32GB/s, PCIe 2.0 = 16GB/s, PCIe 1.1 = 8GB/s
Data Transfer Rate: PCIe 3.0 = 8.0GT/s, PCIe 2.0= 5.0GT/s, PCIe 1.1 = 2.5GT/s Now if I read this correctly the 2.0 will not adequetly handle the new card. I.E. there will be a significant drop in the speed in which the data is transfered? Am I reading this correctly? And by that. it means I will have to update my MOBO. And if so will I need to buy a new operating system. I had installed win 8.1 OEM Thank you for your time. And I hope I asked this in clear manner. My Apologies, I should have proof read my question a little better. The card I want to get is this one http://www.newegg.com/Product/Product.aspx?Item=9SIA57X4P21032

 

[clutchc]

If the gfx card could saturate the PCIe 2.0 bandwidth, yes. But it can't. You will not lose any performance from the current interface you have.
This is a few years old, but still pertinent: https://www.pugetsystems.com/labs/articles/Impact-of-PCI-E-Speed-on-Gaming-Performance-518/

 

[Wolfshadw]

Agreed. That graphics card would not be limited by PCI-E 2.0 .

-Wolf sends

 

[4745454b]

Ok first off I know there backwards compatible.

Then why are you making it harder than it is? If it's backwards compatible and you know that, why not just use it?

 

[Dathune]

If the gfx card could saturate the PCIe 2.0 bandwidth, yes. But it can't. You will not lose any performance from the current interface you have.
This is a few years old, but still pertinent: https://www.pugetsystems.com/labs/articles/Impact-of-PCI-E-Speed-on-Gaming-Performance-518/

Thank you, For providing the link for the Benchmark. It was very insightful. And I believe that with that you have addressed my concerns. Sorry that I didn't have the correct link for the video card that, I want to upgrade to. But with the titan x as a test in the benchmark. I guess it doesn't really matter.

 

[Dathune]

Ok first off I know there backwards compatible.

Then why are you making it harder than it is? If it's backwards compatible and you know that, why not just use it?

That would be, I believe because, backwards compatible refers to being able to use the same connection. I maybe wrong. But I don't think that implies that they are equal in performance. The analogy would be to say that a usb 3.0 is equal in specs to a 2.0 because they are backwards compatible. What I wanted to know is would the PCIe 2.0 x 16 be able to handle a card meant for a 3.0 PCI x 16 slot. Without a performance loss. I have read all lot of different forums. And while most say that you can use a card meant for a 3.0 in a 2.0 there doesn't seem to be a exact consensus. And by all means, if I were to have to go out and get a new motherboard. So that i no longer have to dwell with low fps playing WOW. ASUS GeForce GTX 1070 TURBO-GTX1070-8G .. is big investment, and a new mobo. I would have to consider doing a new build at that point. luckily after seeing clutchc link I feel confident that is not the case.