Fusion Drive speed in iMac
Dec 1, 2019 09:55:16 #
I have read lots of comments here talking about Apple uses 5400 drives in their Fusion drive, well, that may not always be the case as I have a Late 2015 27" iMac with an internal Fusion drive. It is a 2 TB spinner with a 128 GB SSD.... the spinner appears to be a 7200 rpm drive from the specs shown in about this mac....
I have added an external Thunderbolt attached 1 TB SSD that is now my startup disk with OS X plus my apps on it. It was a dramatic improvement over the Fusion of course, but it appears that it pays to research instead of rely on what "everyone" says, unless Apple is lying ;)
I have added an external Thunderbolt attached 1 TB SSD that is now my startup disk with OS X plus my apps on it. It was a dramatic improvement over the Fusion of course, but it appears that it pays to research instead of rely on what "everyone" says, unless Apple is lying ;)
Dec 1, 2019 10:33:23 #
I agree that Apple wouldn't lie. That said, I would recommend using ONLY SSDs for your internal drives. I have a Samsung T5 external SSD for my MBP, but I use TB3 drives on my iMac along with NAS devices. I an not impressed with the Hybrids. Best of luck.
Dec 1, 2019 10:49:11 #
cjc2 wrote:
I agree that Apple wouldn't lie. That said, I would recommend using ONLY SSDs for your internal drives. I have a Samsung T5 external SSD for my MBP, but I use TB3 drives on my iMac along with NAS devices. I an not impressed with the Hybrids. Best of luck.
FWIW - I agree that the fusions, while quicker then a standard spinner, pale when compared to an SSD. I was only pointing out that not all will be 5400 rpm drives as many allude to as gospel.
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Dec 2, 2019 12:43:37 #
Dec 2, 2019 14:24:05 #
Hi Mr. Gallegher,
Could you explain the advantage of putting the OS and applications on an external drive, please. I have the same Mac as you and find it to be slower than I would like. It sounds like your solution may suit me.
Thank you,
Jack
Could you explain the advantage of putting the OS and applications on an external drive, please. I have the same Mac as you and find it to be slower than I would like. It sounds like your solution may suit me.
Thank you,
Jack
Dec 2, 2019 14:55:01 #
bonjac wrote:
Hi Mr. Gallegher,
Could you explain the advantage of putting the OS and applications on an external drive, please. I have the same Mac as you and find it to be slower than I would like. It sounds like your solution may suit me.
Thank you,
Jack
Could you explain the advantage of putting the OS and applications on an external drive, please. I have the same Mac as you and find it to be slower than I would like. It sounds like your solution may suit me.
Thank you,
Jack
By using an external SSD in a Thunderbolt dock it is as fast as an internal SSD ( not a m.2 ssd of course though )
By using the SSD as my startup disk, and where my apps are stored, the machine boots quicker then the internal fusion, and apps launch faster a well.
Even using a USB 3.0 dock for the SSD improved startup and launching apps, but only slightly. On Thunderbolt the difference was more dramatic.
This post has the results of some basic testing I did....
https://www.uglyhedgehog.com/t-613446-1.html
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