Hey
So I have a B550 mobo at the moment and I'm running x2 M.2 SSDs. In the first slot I'm running PCI GEN4 but in the second M.2 slot I'm running PCI GEN3 (4 lanes). I currently have a 2TB WD SN550 NVMe SSD in the secondary M.2 slot which is used solely for my Games.
I was reading that the max bandwidth of PCI GEN3 with 4 lanes is 4GB/s. The SN550 has Sequential Read Performance 2600MB/s and Sequential Write Performance 1800MB/s. Does that therefore mean if I were to "upgrade" to a 2TB WD SN850 NVMe (for example), that I'd see some improvement in Read/Write performance? I'm worried if I put the SN850 (a PCIe GEN4 device) in a GEN3 M.2 slot, I would be cutting its legs off and crippling any performance gains? Apparently the SN850 has Sequential Read Performance 7000MB/s and Sequential Write Performance 5100MB/s - but I'm guessing that is when using PCIe GEN4.
Is there any info online of showing the speed differences when a GEN4 M.2 is ran in a slower configuration?
The SN550 I have is 2 years old, nothing wrong with it, but wondered if I could eek out some more performance. Or should I bite the bullet and go for an X570S board?
Cheers.
So I have a B550 mobo at the moment and I'm running x2 M.2 SSDs. In the first slot I'm running PCI GEN4 but in the second M.2 slot I'm running PCI GEN3 (4 lanes). I currently have a 2TB WD SN550 NVMe SSD in the secondary M.2 slot which is used solely for my Games.
I was reading that the max bandwidth of PCI GEN3 with 4 lanes is 4GB/s. The SN550 has Sequential Read Performance 2600MB/s and Sequential Write Performance 1800MB/s. Does that therefore mean if I were to "upgrade" to a 2TB WD SN850 NVMe (for example), that I'd see some improvement in Read/Write performance? I'm worried if I put the SN850 (a PCIe GEN4 device) in a GEN3 M.2 slot, I would be cutting its legs off and crippling any performance gains? Apparently the SN850 has Sequential Read Performance 7000MB/s and Sequential Write Performance 5100MB/s - but I'm guessing that is when using PCIe GEN4.
Is there any info online of showing the speed differences when a GEN4 M.2 is ran in a slower configuration?
The SN550 I have is 2 years old, nothing wrong with it, but wondered if I could eek out some more performance. Or should I bite the bullet and go for an X570S board?
Cheers.