Fucking
finally fixed my micro stutter / scenery hitching.
Pretty embarrassing, but:
1st attempt (fail): First thing I tried was upgrading to 16gb ram b/c I thought low "free ram" could've been the cause of the hitching. Nope. Zero difference.
2nd attempt (fail): Then I got a 256GB Samsung 850 SSD and ran it off that. Nope, zero difference besides load times. Frustration sets in.
3rd attempt (success!): Pretty much out of options besides a new mobo I reinstalled a fresh copy of Widows 8.1.
Hitching seems to be pretty much 99% gone compared to being almost unplayable before the clean install.
Finally, after almost a month of trying to figure this out. This is the
only game I've had trouble making stutter-free besides Ethan Carter.
Bonus: Disabled my main HDD pagefile and
a set my SSD pagefile to 8GB. Hitching/stutter seems to have improved dramatically, especially when driving full speed through the city.
TLDR: If you've tried all of the tweaks and are still getting stutter/hitching while driving w/ a high-end PC, try a complete reinstall of Windows. It'll take a few hours but it's worth it.
Strange that the clean install worked b/c I apparently had zero malware and never d/l shady stuff. My best guess is something was fucking with my drivers.
i7 3770 | 970 FTW+ | 16GB RAM | 256 SSD
G-Sync, Max pre-rendered frames: 1, Maximum performance power plan, RTSS lock to 60fps. Witcher 3 drivers.
will update post if this is just a fluke and the hitching returns.