I tested this with my 2011 13“ MBP I recently treated to a period-correct Samsung 830 (just for you @ojfd). Thunderbolt Target Disk Mode gets 200 MB/s read and 100 MB/s write (average) — still faster than FW800. I wonder if the performance hit is relative or absolute as my results are better than Anand‘s.
I tested this with my 2011 13“ MBP I recently treated to a period-correct Samsung 830 (just for you @ojfd). Thunderbolt Target Disk Mode gets 200 MB/s read and 100 MB/s write (average) — still faster than FW800. I wonder if the performance hit is relative or absolute as my results are better than Anand‘s.
Samsung 830 is not the top performer in 2011 13" MBP, but it's MLC and very good for the old Macs, especially G4. I have two of those in OEM mSATA flavour.
As to the FW vs. TB, here are the real world tests as of 10 minutes ago.
Two 2011 13" MBPs, one of them in Target disk mode. Test run on a spare partition of Kingston SA400 drive. I even cleaned that partition a bit for the FW test, but there was no change in speed.
860 EVO will get you ~560 on reads and ~520 on writes in 2011 13" MBP. That's what I use, but mine is chock-full at the moment.
This is what I get with only 12% of 500GB remaining free. I think I need to do a house cleaning ASAP.