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R. Belmont
Cookoo for Konami
Reged: 09/21/03
Posts: 9552
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Re: SFF-8643 to M.2 (PCIe x4) 2-in-1 Docking Board
02/15/17 06:51 PM


> As far as I know, a M.2 SSD and an SATA SSD use the same memory chips.
>
> Why would a M.2 SSD connected to a SFF-8643 port be faster than an SATA SSD connected
> to a SFF-8643 port?

Because SATA itself is increasingly the bottleneck for I/O as flash gets faster and things like command queueing come into play even on desktops. M.2 gives you 4 lanes of PCI Express, which is quite a bit more bandwidth.

That said, connecting one to an SFF-8643 SAS port probably negates a lot of that advantage.







Entire thread
Subject Posted by Posted on
* SFF-8643 to M.2 (PCIe x4) 2-in-1 Docking Board TrevEB 02/07/17 11:15 PM
. * Re: SFF-8643 to M.2 (PCIe x4) 2-in-1 Docking Board krick  02/08/17 08:40 AM
. * Re: SFF-8643 to M.2 (PCIe x4) 2-in-1 Docking Board R. Belmont  02/15/17 06:51 PM
. * Re: SFF-8643 to M.2 (PCIe x4) 2-in-1 Docking Board TrevEB  02/08/17 08:06 PM

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