Very slow WD Green SSD

[quicky008]

I've had a wd green 240 GB ssd installed on my pc for more than a year. I have observed that its quite slow and makes the computer very sluggish while starting up or performing disk intensive tasks such as windows updates (it becomes almost unusable at such times).

Today i tested the read/write speeds of the ssd and was quite surprised with the results.It has a random read and write speeds of just 282 and 40 MB/s respectively,which is way too slow.

In contrast to this,an older 120 GB Crucial SSD installed on another pc gives a read/write speeds of around 400-500 MB/s.

This WD ssd was slow from the day it was installed-initially i didn't mind that much but over time it has become very annoying.

Is the SSD defective or are WD green ssds supposed to be really slow?!

Should i get rid of it?

(screenshots of Crystal disk info and ssd test results attached for reference)

 

[patkim]

What is the exact model number of the SSD e.g. WDS240G3G0A

Most likely the SSD is a DRAM Less SSD where there's no real cache present on the chip. Techniques like TLC and SLC caching are used to gain speed but when the cache fills up the speed may plummet.

I would be interested to see the ATTO Disk Benchmark results and also results from CrystalDiskMark.

 

[quicky008]

how can i find the exact model no of ssd? in Device manager it shows up as WD Green 2.5 240 GB SSD.

I have attached the screenshot of crystaldisk mark.

 

[patkim]

It is written on the product. It might be there in the invoice. Also msinfo32.exe may also display it under storage -> Disks
I suspect what you have is DRAM-Less SSD. Such issues are common with DRAM-Less SSDs.

This info about DRAM cache is never disclosed by the manufacturer. You have to refer third party guides to figure out this info. Absence of DRAM cache affects Write speeds.

Make sure there's at least 10- 15% free space on the SSD which helps in improving the speed to some extent.

Try factory reset (secure erase) procedure to restore the SSD back to factory defaults. This is data destructive operation. So take backups.
If things do not improve thereafter, consider RMA and demand a replacement.