Quote Originally Posted by alfaunits View Post
Quite strange that... the 128GB M4 is faster than the 256GB M4 in random reads. Results switched?
I think no.

This is explanation to hardware.fr (google translated ):

"The 128 GB version also gets results well above the 256 GB version of the explanation is actually quite simple, it is at the level of memory chips used. On the 128 GB, the chips used are organized with pages - the smallest readable - 4 KB, while the 256 GB version, the pages are 8 KB, therefore, to read 4 KB requested at the test, the 256 GB version should actually go to a full page of 8 KB"