AMD Motherboards - My gpu is detected @8x 3.0 instead of 16x 3.0

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My gpu is detected @8x 3.0 instead of 16x 3.0

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=8739
Printed Date: 19 Jul 2025 at 4:17am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: My gpu is detected @8x 3.0 instead of 16x 3.0

Posted By: Tsq5581
Subject: My gpu is detected @8x 3.0 instead of 16x 3.0
Date Posted: 21 May 2018 at 1:15am

" rel="nofollow - Hi guys,
Need your help/info
Recently i bought a B350 Gaming K4, on GPU/CPU Z, it detected my vga card is 8x not 16x, i installed my vga on the primary pcie slot.
Any advice regarding this?

Thanks before for your help

Spec :
Ryzen 3 1200
B350 gaming k4 fatality
Xfx 560D 4gb
Ram 8gb

Replies:

Posted By: Jm62383
Date Posted: 21 May 2018 at 2:11am

560d is 8x.

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Ryzen 1700@3.7 AB350 Gaming K4 Tridentz F4-3600C15D-16GTZ@3466

Posted By: Tsq5581
Date Posted: 21 May 2018 at 3:51am

" rel="nofollow - Oh is 8x 3.0 then? Thank you for the reply, one other thing,
between 8x vs 16x 3.0 is there significant performance difference?

Thx before

Posted By: Reinvented
Date Posted: 21 May 2018 at 4:19am

Not enough bandwidth to even saturate an 8x. You're fine.