Question - GPU PCIe 4 in a PCIe 3 slot

pci 4 in pci 3 slot   Dan pcie 4 card in pcie 3 slot

After a quick Google search, I found this article which explains that: a PCIe x16 slot can theoretically hit approximately 32 gigabytes

Like USB, PCIe is forward compatible This means that a device which requires PCIe will work in a PCIe or PCIe slot Slot Size Lane Width 4-3, per single PCI Segment Group show less , ECN, November 18, 2018 Errata for the PCI Express® Base Specification Revision , , Errata, October 31

the slot has been permanently locked It should be backward compatible, but you will see less performance than if you had it in a PCIe slot since it runs at PCIe x8 instead PCIe Gen 3 vs PCIe Gen 4 PCIe offers twice the data rate and maximum bandwidth of PCIe , allowing faster data transfers The standard