Why My One Hard Disk Is Performing Slower Than Another (Both Are From WD) ?

[vikbot]

Hello, Just bought two 1 TB WD Caviar Blue. But one drive is performing slower than another in every benchmark test... I have installed those hard disk with new SATA cable and both are formatted to NTFS..

See it yourself ->
This drive performs faster ->

but another one which is also the same "WD Caviar Blue" perform slower ->

AS SSD Benchmark showing less "K" and giving the slower drive "BAD" score ->

Which is completely opposite of the faster drive ->

Can you guys please tell me why it's happening ?

Specs - i5-4690k
Gigabyte GA-Z97M-D3H
Corsair 16 GB RAM
Samsung Pro 850 512 GB
Samsung EVO 850 120 GB
WD Blue 2.5 inch 500 GB
And
Two WD Blue 1 TB Hard Disk
Windows 8.1

Now is the drive returning slow performance for using "too many" SSDs and HDDs ? Kidnly help me

 

[firefoxx04]

That is within margin of error, I would not worry about it. There are million variables that go into hard drive performance. You will rarely see those numbers in real world activity anyways.

 

[vikbot]

That is within margin of error, I would not worry about it. There are million variables that go into hard drive performance. You will rarely see those numbers in real world activity anyways.

I have posted another 2 screen shots which I think is important... I would request you to check my updated post (Included AS SSD Benchmark Screen shots with less "K" and greater "K").

 

[SBMfromLA]

Hello, Just bought two 1 TB WD Caviar Blue. But one drive is performing slower than another in every benchmark test... I have installed those hard disk with new SATA cable and both are formatted to NTFS..

See it yourself ->
This drive performs faster ->

but another one which is also the same "WD Caviar Blue" perform slower ->

AS SSD Benchmark showing less "K" and giving the slower drive "BAD" score ->

Which is completely opposite of the faster drive ->

Can you guys please tell me why it's happening ?

Specs - i5-4690k
Gigabyte GA-Z97M-D3H
Corsair 16 GB RAM
Samsung Pro 850 512 GB
Samsung EVO 850 120 GB
WD Blue 2.5 inch 500 GB
And
Two WD Blue 1 TB Hard Disk
Windows 8.1

Now is the drive returning slow performance for using "too many" SSDs and HDDs ? Kidnly help me

I don't really see any problems... but if you want... why not... just for kicks... swap the sata data cables of those two WD Blue drives and re-run the tests if it still bothers you.