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Topic Title: Modern M.2 SSD disk speeds and PCIe slots
Topic Summary: they are WAY faster than SATA disk connections
Created On: 03/20/2023 02:17 PM
Status: Post and Reply
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 Modern M.2 SSD disk speeds and PCIe slots   - kkkwj - 03/20/2023 02:17 PM  
 03/20/2023 02:17 PM
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I have M2 SSD disks on my motherboard, on a PCIe x4 slot, and now on a PCIe x1 slot. Yay! I found a use for those unused old x1 1-channel bandwidth slots on my motherboards.


The speeds of modern M2 disks (top-end Samsung 970/980 series w heatsinks are my favorite, but are relatively expensive) are as follows:


On the motherboard PCI 4.0 = 10x faster than SATA disks

On a PCIe x4 4.0 slot = 4x to 5x faster than SATA disks

On a PCIe x1 4.0 slot = 2x faster than SATA


So, if you're looking for an overall disk speedup or for a way to use those unloved x1 motherboard slots, this is an option for you.  


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