What kind of SSD does the ThinkPad X200 come with, and is it any good?

Solution 1:

It comes with a Samsung 128GB Flash SSD. You can find it's specifications here.

Compared to the X25-M you're used to it will be a fair bit slower.

• Samsung SSD: 90MB/Sec Read - 70MB/Sec Write
• Intel X25-M SSD: 250MB/Sec Read - 170MB/Sec Write

Solution 2:

The Lenovo FRU (part #) is 41W0519. I think it's a Samsung MLC type SSD, model # MMCRE28G8MXP-0VB, based on this thread and previous research when buying my X301.

I have an X301 with a 64GB Samsung SLC type SSD. I would have preferred to wait for a faster/cheaper SSD and upgrade myself, but that was not an option. I am not sure if current Samsung SSD's support the TRIM command. SSD's that support TRIM avoid the potential long term performance degradation issue.

Anandtech gives a detailed explanation of SSD's and the TRIM command:

• The SSD Anthology: Understanding SSDs and New Drives from OCZ
• The SSD Relapse: Understanding and Choosing the Best SSD

The SSD I got in my X301 seems very zippy, especially during boot. I have been using my laptop for almost a year, and I have not noticed any major performance issues.