i just got a msi rx 550 2 gb lp,and tried driver 17.9.1 cause bad performance issued. 17.7.2 driver was very bad for me lousy performance. 17.8.2 is ok not good cause has its problems too. but surprising enough the old beta driver for the rx 550 from may works perfect no perfomance issue also no chill,and no enhanced sync. so until this is resolved going back to that driver.