Originally Posted by coffeeplus
I also own a Samsung 850 EVO but there are only 2 months since I started using it, migrating from an older HDD with a Macrium Reflect drive image.
I periodically did some HD Tune tests on it, and yesterday, after reading the post about problems with stale data (again, I went through this with 840 EVO as well) I did some more tests.
I did find some lower read speed area at the 'start' of the disk for about 10-15% and then some very small cliffs here and there, but the performance on those did not go lower than 390 MB - 400 MB. At a later run, on the same machine, the start of the disk looked a bit different, as if speed had improved here and there. Also, the lowest read speed did not go under 400 anymore, but had the minimum at about 420 MB. All of these runs were made with the 8MB block size and the most accurate (slowest) test speed.
I'm really wondering if this might be a general problem, as the 840 EVO had.
Can someone confirm about the fact that there's no 'updated'/new firmware for 850 EVO aside from the one pre-installed when you purchase? I wasn't able to find one on Samsung' pages.
If you have one of the newer versions of Magician, there is a version EMT02 (i think it starts EMT, and i don't remember the rest of it) FW. and the stock FW is EMT01.
Also have you guys tried HD Tune Pro 5.6? you can use the trail version. If i remember correctly from last year, the free version 2.55, doesn't bench SSDs correctly. Also, drivers affect the results of the speed on HD Tune Pro as well.Edited by Palorim12 - 2/29/16 at 6:11am