pci e 4.0

Forum discussion tagged with pci e 4.0.
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    Question Is it worth downgrade bios to enable pci-e 4.0?

    Hi guys, the title says it all, i bought a RX 6600 xt and I have a gigabyte b450m aorus and i wanna know if it's worth the downgrade the bios just to enable the pci-e 4.0, does it have big difference in performance? Will the downgrade have any impact on my pc?
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