Hello. I own 2 WD RED 2TB Hard drives listed below -WD20EFRX 68AX9N0 -WD20EFRX 68EUZN0
CrystalDiskMark shows much slower speeds on the older drive 68AX9N0. Is this normal? I get about 145MBps on the new one and 110 on the old drive. Now i have them on RAID 0 and i get decent speeds but im wondering... Does 3 years slow down a HDD or is it just a different batch?
Some more info from CrystalDiskInfo WDC WD20EFRX-68AX9N0 power on count: 2018 power on hours: 8594
WDC WD20EFRX-68EUZN0 power on count: 24 power on hours: 193
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Different batch and judging by the speed increase i would say the new drives are using a denser platter with more refined heads (to read the higher density)