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SATA-600 vs PCI Express 3.0 x4 on a m.2 ssd... what is the difference?

Go to solution Solved by Senzelian,

PCI-e is an interface that offers much more available bandwith than SATA.

 

SATA 3 or SATA 600, as the name implies, offers a bandwith of 6Gigabit/s. (~ 550Megabyte/s in the real world)

PCI-e 3.0 offers a bandwith of 1Gigabyte/s. With 4 lanes (x4) that is 4GB/s. (~ 3500 Megabyte/s in the real world)

 

Whether your laptop supports both or only one of them, is something you need to look up. Or you can simply check what is currently installed and stick with an SSD that uses the same technology.

 

Edit:
Is is important to note, that newer PCI-e SSDs usually use the NVMe protocol, instead of the older AHCI protocol.

Even if your Laptop supports PCI-e SSDs, you have to make sure that it is either one with an AHCI protocol or that your laptop supports the NVMe protocol too.

I am going to be upgrading my laptop storage, but the problem is that i am looking at ssd's right now and the one is sata 600 and the other is pci express 3.0

 

what is the difference? do both fit in my lenovo legion 5 laptop?

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PCI-e is an interface that offers much more available bandwith than SATA.

 

SATA 3 or SATA 600, as the name implies, offers a bandwith of 6Gigabit/s. (~ 550Megabyte/s in the real world)

PCI-e 3.0 offers a bandwith of 1Gigabyte/s. With 4 lanes (x4) that is 4GB/s. (~ 3500 Megabyte/s in the real world)

 

Whether your laptop supports both or only one of them, is something you need to look up. Or you can simply check what is currently installed and stick with an SSD that uses the same technology.

 

Edit:
Is is important to note, that newer PCI-e SSDs usually use the NVMe protocol, instead of the older AHCI protocol.

Even if your Laptop supports PCI-e SSDs, you have to make sure that it is either one with an AHCI protocol or that your laptop supports the NVMe protocol too.

05Gb/s - USB 3.2 Gen 1 (USB 3.0, 3.1 Gen1)

10Gb/s - USB 3.2 Gen 2 (USB 3.1 Gen2)

20Gb/s - USB 3.2 Gen 2x2 

40Gb/s - USB 4.0, Thunderbolt 3, Thunderbolt 4

 

Some Wallpapers I created

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