PCIe Gen 4 vs Gen 3: Do you need to spend extra on SSDs?

Gen 4 is faster than Gen 3

Sorry to bother you sir, what i mean is if i buy gen 4 will it give me same speed as gen 3 on gen 3 pcle slot, or will it be slower than gen 3, because gen 4 is

avg slot Gen 4 SSDs aren't worth it unless you're working with large files and doing a lot of sequential readwrites

slot alternatif 2 SSD in the first place? When a Gen 4 SSD is installed in a Gen 3 slot, it will automatically operate at the maximum speeds supported by the