Seagate Momentus 5400.3 40 GB vs Seagate ST600MM0158 600 GB

A side-by-side spec comparison of the Seagate Momentus 5400.3 40 GB and the Seagate ST600MM0158 600 GB. We line up every specification, highlight the winner of each, and tally an overall verdict so you can decide which storage is right for your build.

Side-by-side specification comparison of Seagate Momentus 5400.3 40 GB and Seagate ST600MM0158 600 GB.
Specification	Seagate Momentus 5400.3 40 GB $95.00 Winner Buy on Amazon	Seagate ST600MM0158 600 GB $95.00 Buy on Amazon
Type	HDD	HDD
Cache	8	128
Capacity	40 GB	600 GB
Interface	PATA 44-Pin 100	SAS 12.0 Gb/s
Read Speed	550 MB/s	550 MB/s
Form Factor	2.5"	2.5"
Write Speed	520 MB/s	520 MB/s

Seagate Momentus 5400.3 40 GB

specs won

Seagate ST600MM0158 600 GB

spec won

As an Amazon Associate, PlanMyPC earns from qualifying purchases made through links on this page.

Compare more parts

Add a third or fourth storage to this comparison, or build a side-by-side from scratch in the interactive compare tool.

Open in interactive compare tool All Storage