Samsung 840 PRO vs WD Red SA500

vs
Samsung 840 PRO WD Red SA500
2.5-Inch
Form
2.5-Inch
SATA III
Interface
SATA III
256
Storage
1000
540
Seq. Read Speed
560
520
Seq. Write Speed
530
100
Rand. Read Speed
95
90
Rand. Write Speed
85
about