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macrumors regular
Original poster
May 26, 2010
Just installed a Samsung 970 Evo Plus into my late 2013 27" and its showing a PCIe link width of only 2x and speeds are kinda of meh. Is this normal for this model?

Samsung SSD 970 EVO Plus 2TB : Intel Core i7-4771.png

Screen Shot 2023-04-27 at 12.44.04 PM.png

Juicy Box

macrumors 604
Sep 23, 2014
Is this normal for this model?

Maybe a little slow, but the Late 2013 iMac only has two lanes of PCIe 2.0, which is about a max of 1GBps.

Is there something going on with the drive that is making it a little slower? Did you just install an OS on it, if so, then maybe there is some indexing going on with the drive. Test it again in a day or two.

Just for reference, I have posted the speeds of a Samsung X5 NVMe Thunderbolt 3 external drive as a boot drive on a Late 2012 iMac, and the speeds were slightly higher than what you posted for your Late 2013 iMac.


macrumors Penryn
Feb 20, 2009

Considering the age of the iMac, the speeds you're seeing are about what one would expect to see.
Actually, not bad at all.
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