Synology SAT5210 vs WD Blue

vs
Synology SAT5210 WD Blue
2.5-Inch
Form
2.5-Inch
SATA III
Interface
SATA III
1920
Storage
4000
530
Seq. Read Speed
560
500
Seq. Write Speed
530
98
Rand. Read Speed
95
60
Rand. Write Speed
82
about