Your question is about two different things.ġ. If there is no RAID or/and no external SSD to be used, Thunderbolt do not perform better than USB 3.0, am I correct? What is the real difference between USB 3.0 and Thunderbolt when using an external spinning hard drive ? Which led me to raise the question about the transfer rates. Then I have seen this G-Drive with Thunderbolt & USB 3.0, 4 TB: A bit pricy here in Europe, and I don't see the possibility to change the hard disk directly from the removable disk module. I see a great opportunity to setup a RAID storage thanks to a NAS, but for the time being, I don't have the need of sharing media files or create a home cloud.Īs you mentioned I was also looking at this G-Raid with Thunderbolt 8 TB. Not sure about the read and write operations coming directly form the Mac. By reading the Sinology specs, USB 3.0 ports aims to backup the NAS unit or to transfer data on it. The NAS appears to be an independent unit attached to the network via ethernet/Wifi. I am not sure if the NAS would allow this type of connection. Is there any difference between TB and USB 3.0 in real world, using external HDD or external SSD?Īre you suggesting to use a NAS Synology as an external hard drive, via the USB 3.0 port? What would be your advice for an associated backup strategy? Please let me know which storage solution you would recommend to me. For instance, I see SSD performs around 450 MB/s (no raid).Which is still below the 10-20 GB/s proposed by TB.Īm I correct to benchmark ports against drives transfer rates?
Thunderbolt ports could be used with SSD external drive to allow better read/write rate. Using an external HDD, Thunderbolt would have no added value to go for, as the spinning drive will be the bottleneck of the chain, bringing 245MB/s max of transfer rate versus 10GB/s proposed by this port. As for example G-Drive with Thunderbolt 4TB is 245 MB/s and G-Drive G1 4 TB USB 3.0 is the same 245 MB/s (6 TO disk). The transfert rates for external spinning drives are around 160-240 MB/s. The transfert rates for ports : USB 3.0 = 5GB/s, Thunderbolt = 10GB/S, Thunderbolt 2 = 20GB/S If I plug an external spinning drive, as a standard of 64MB cache, 7200RPM, no RAID., what is the real difference to use the Thunderbolt port against USB 3.0 port ? I have seen lot of interesting threads and articles, however the question remain the same to me: The first choice goes to external spinning hard drive(s) as no high speed transfer is required in my case (no work on video files expected), and for price reason. As you may know, the late 2015 iMac includes (2X) Thunderbolt 2 ports and (4X) USB 3.0 ports A capacity of 4 TB storage will cover my needs. I also keep in mind that the chosen storage solution will impact the backup strategy (to set up). I am now looking for an external storage solution to manage the photo library, and let the internal SSD take care of catalogs and applications.
Mainly to be used for photography workflows (Lightroom & Photoshop).
I recently bought an iMac 27' with 512 GB SSD internal drive.
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