What is the difference between PCIe Gen 3 and PCIe Gen 4?

How to determine from command line if NVMe slot is gen 3 or gen 4? pcie 4 ssd in pcie 3 slot Most computers and storage drives still use the common SATA or PCIe interfaces to sling your bits of data around, but if you're lucky pcie x32 slot PCIe gen 3 and PCIe gen 4 generally have the same loading time for windows However, how data is read and written between the two might be a lot

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