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Will GTX 750 TI be bottleneck by PCIe 16x 1.1 ?

Last response: in Motherboards
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April 27, 2014 2:28:13 PM

Recently purchase a new build with a cheap asus MB. I realized after building it that the PCIe 16x was not 2.0 like a tough but it appear to be a PCIe 16x 1.1.

The build include an Nvidia GTX 750 TI and I was worried. Am I loosing a lot of performance due to the PCIe slot ?

Here is the build:
- MB Asus H81M-A
- Intel i5-4570 3.2 Ghz
- 16 Gb of ram (2 x kingston 8 Gb)
- Nvidia GTX 750 Ti
- HDD WD 1 Tb sata 6/Gbs
- Evga 500 Watt PSU

So far I tested some game with it and performance are great but im still worried a bit.

Thank you.
a b G Storage
April 27, 2014 2:33:12 PM

Any 8 series Intel mobo will have at least PCIe 2.0; no matter how cheap. Only much older boards would have support limited to 1.1

What makes you think this board is PCIe 1.1?
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April 27, 2014 2:34:51 PM

no its fine. The card is backward compatible and it wont make a difference.
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April 27, 2014 2:41:15 PM

Thank you for quick reply.

The spec on the asus website (https://www.asus.com/Motherboards/H81MA/specifications/) do not mention PCie 3.0 and after some search and the web, some people had mentionned it has a PCIe 1.1.

I was worried so thats why I decided to post here to have some answers.

I think I can use GPU-Z to check if it actually running at PCIe 2.0. That what I should do when I will be at home later.

Anyway I'll post back here after looking with GPU-Z.

If it is an PCIe 2.0, than I am not worried since the loss from PCIe 2.0 VS PCIe 3.0 look almost insignifiant.

Again, thank you.
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April 27, 2014 6:51:28 PM

Thank you all. Not worried anymore. Like SchizTech said, the 16x PCIe Express port on the H81M-A motherboard is in fact 2.0. I made the check up with GPU-Z.

Looks like the card GTX 750 will run at his potential with this build.

Thanks you again all.
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