I recently bought an ADATA premium M.2 Gen 4 SSD for my PS5, which is 2TB and was only $93 CAD ($68 USD). Although some games like SF6 load faster, the overall speed seems to be only about 25% of what it's advertised to be. I checked the health status using CrystalDiskInfo and HD Tune, and everything seems fine. My motherboard is an Aorus X470 Ultra Gaming, and according to the specs, it has two M.2 connectors: one that supports PCIe 3.0 and another PCIe 2.0. I suspect I'm using the second socket, but I can't seem to find clear information about the Gen 2 socket online.
2 Answers
Yup, that makes sense. If your SSD is in a PCIe 3 slot, it should be faster, but it won't reach max speed since it's a Gen 4 drive. It's good that you moved it to a better slot; you should definitely see an improvement now.
You're correct. An M.2 Gen 4 SSD uses PCIe 4.0 x4, while your second socket only supports PCIe 2.0 x4. That's likely why your speeds are so low; being in a PCIe 2.0 slot means you're getting around 25% of the potential speed you could achieve with a PCIe 4.0 connection.
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