Question: Spend money on internal SSD upgrade or USE Thuderbolt SSD.
I have a 2017 21.5 iMac 4k with 1TB 5400rpm Drive. I wanted to upgrade to an SSD and was wondering what are the best options for this device. Is it worth paying and getting it installed internally, or would Thunderbolt 3 or USB-C give similar speeds as an SSD.
Ideally I would like to go for the external option as my work out cheaper. So run my OSX on the external SSD and then use the internal HDD as an extra drive for storing large files, (Pictures, Videos etc)
iMac, iOS 11.2.6