No, for a boot and OS X drive you want 16k. It's about 1.8 times faster than using 32k. If there were an 8k option I would recommend that over 16k as well. Probably the sweet spot would be 10 or 12k from the results of my extensive testing with this. Now, as a data storage and project drive just the opposite advice applies and I personally wish there were a 512k option for that - alas there is none.