Question - GPU PCIe 4 in a PCIe 3 slot

pcie 4 0 gpu in 3 0 slot   Dan pcie slot height

In other words, using PCIe 4 means that the graphics card can benefit from a 39% wider bandwidth compared to PCIe 3 Benchmark results in 3DMark

Yep PCIe cards will work on PCIe slots #1 mongoloid  Actually, you can install your ssd in the _1 slot and still have your gpu run at x16 as AlderlakeRaptorlake cpu's have 20 pcie lanes or 16 pcie

wenhsin ed mosaic Supports most 1, 2, and 3 slot graphic cards Designed for most fullmid ATX tower with at least 7 available PCI slots High quality material increases PCIe slots feature the same pin layout and thus are forwards and backward-compatible However, a PCIe card slotted into a PCIe slot will