Perhaps also for 960 users. I have seen that many 960 members use Samsung Magician. I have a Samsung SM961 and an Samsung 850 Pro. When I install Magician for my 850 than my Read speeds drop down.
I have done some testing on the different drivers. I have only looked at the Read speeds, because the write speeds seems concistent.
This is done with a SM961-256Gb - Specs Read 3100/Write 1400. There is no overall winner, but the Samsung 18.104.22.168 from Dell and the Intel 22.214.171.1241 are the best consistent drivers. Because the system log reports an error on the Intel driver 126.96.36.1991 I prefer the Samsung 188.8.131.52 from Dell. The Samsung 2.4.70. driver is also good, but this driver drops to much after 75 seconds. When Samsung driver 184.108.40.206. had a higher 4k read than I would prefer that driver.