xbitlabs har testet 3 2,5" harddiske. Disse harddiske yder betydeligt langsommere end "normale" harddiske på, bl.a. grunden den lavere rpm. Tilgengæld er disse harddiske et godt valg hvis du skal lave et lille smart mod.
"Today we are going to test 6 hard disk drives of 2.5” form-factor from Seagate, Fujitsu, Hitachi and Toshiba, which can not only be used in notebooks, but are also becoming very popular as mobile storage devices and miniature desktop solutions." http://www.xbitlabs.com/articles/storage/display/25-inch-roundup.html
Digit-life har lavet endnu en harddisk roundup, denne kalder de
Fall 2003: Hard Drives (8MB Buffer) Roundup og navnet siger vist det hele:
"By the moment all hard drive makers have Parallel ATA drives with 8MB buffers in production. Today we will compare such drives (here you can find the comparison of the drives with the different buffer sizes). It's arguable if the buffer size directly influences performance because in some tests it even falls down), but the drive makers, being in a constant race for customer's wallet, keep on increasing different characteristics such as disc size, spindle speed, and now the buffer size as well." http://www.digit-life.com/articles2/pata-8mb/index.html