Real world difference between high and low end SSD?

[TCOMC]

For those who've upgraded from an old or low end SSD to a new high end SSD, how big of an improvement did you feel? I'm leaving this question rather open because I'm looking for different user experiences.

I bought a Samsung 840 120GB on Sunday (at a great price ) but I did more reading today on the particular model and found that the write speeds are pretty "slow". I've been obsessing over benchmark numbers ever since. Will I actually notice a difference in system responsiveness if I exchange it for say a 840 Pro (or even the 250GB 840 model where the write speeds are roughly twice as fast). I'm using the drive to hold Windows 7 and other apps. There won't be much file transferring or working on large files happening.

 

[Kingbob]

Pretty much all SSDs are MUCH faster than any HDD. You will not notice too much of a difference between the 840 and the 840 PRO. The biggest difference between the old SSD's and the new SSD's is reliability. The new SSD's should last 7-10 years while the older ones only last 2-3. The 840 PRO is supposedly more reliable, so you should keep that in mind when you look at exchanging it out.