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M.2, sata express and pci-e x4 ssd slot

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June 19, 2014 2:12:11 AM

when connecting one of the newer ssd's are these ports the same? a 4x pcie ssd card, or connecting a ssd to either sata express or m.2
June 19, 2014 2:21:18 AM

Do you mean the same speeds? This usually still depends on the memory controller. The connectors itself are not the same.
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June 19, 2014 4:49:26 AM

on a z97 and haswell i5 or i7 4690k new ones
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June 19, 2014 4:54:24 AM

No, that was not my point. The point was that on these connectors the speed is normally limited by the speed of the controller on the ssd. All of these can in principle obtain speeds of 10 GBit/s (~1.1 GB/s), but in reality, the most I have seen on PCIE is ~750 Mb/s. I do not know of any sata express divice on the market, and M.2 pcie has the identical same channels as pure pcie . So this depends on the specific device you want to use.
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June 19, 2014 4:58:34 AM

oh, well I was looking at the newer SSD'si think Plextor has one and theres another one uses pcie and the other m.2 I believe
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June 19, 2014 5:05:28 AM

Are you thinking of this one: http://www.plextoramericas.com/index.php/pcie-ssd/m2/m6... and this one: http://www.plextoramericas.com/index.php/pcie-ssd/hhhl/... ? These are identical, except that the M.2 pcie drive uses less space. The speeds will be identical, except for manufacturing differences between units (meaning if you get two, you are not guaranteed that both perform the same). So yes, in this case they have identical performance.
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