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PCIe x 4.0 on Radeon VII

Jan 4, 2013
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System Name R7 3800x@4525MHz/E5800@4GHz/Skylake 6400
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Case Custom builds
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Software win10pro / Win10 Home / win7 / wista 64 bit and XPpro
I just noticed that my Radeon VII runs PCIe x 4.0 on my x570 chipset, in bios my board a Gigabyte Aorus Master is set at auto. The settings is shown in AMD driver overview

CPU is the X3800

OS win 10 pro 1903

Any one else noticed that?


GPU Z shows it as PCIe x 3.0


and so do HWinfo64? Strange?
Jul 21, 2019
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dude it's called pci express 4.0, plus it says x16 on your gpu-z screen shot
Mar 10, 2010
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Manchester uk
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dude it's called pci express 4.0, plus it says x16 on your gpu-z screen shot
His point is Amd software says 4.0.
Everything else is saying he's at 3.0.
Radeon VII is not supposed to support pciex 4?
Nov 1, 2018
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System Supported vs Active

Same thing happens when putting an old 2.0 videocard into a 3.0 system... it says that 3.0 is supported but 2.0 is currently active.


p.s. - and no, Vega doesn't know 4.0...
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