Hi, today I’ve bought a WD Blue 1TB and decided to run benchmarks on both it and my old WD Black to see how they compare.
I got wildly different results in favor of Blue.
This seemed a bit odd, so I checked the specs and it says that it should be around 150 MB/s, but I only got around 60 on Black. My harddrives are divided into 2 partitions and interestingly enough, one of the 2 partitions gets better read speed results than the other (for WD Black. And I do realize that data on the outside can be read faster than the data closer to the center but unsure by how much faster).So I ran the test for all the partitions and this is what it looked like.
2 on the left is Blue and 2 on the right is Black.
SMART shows that the drive is good and the quick test has passed with no issues (using WD’s diagnostic tool)
What is the reason for this slowdown and is it normal for it to be this below spec?
WD1002FAEX-00Y9A0 WD Black (Note that the drive was bought in 2013 in August, so it’s almost 5 yo)
WD10EZES-08WN4A0 WD Blue (Running inside an external USB3.0 enclosure, and using GPT instead of MBR)
Asus H81M-D motherboard
Intel i3 4150
How the partitions are organized: