Bazza0304 Posted March 18, 2018 Share Posted March 18, 2018 (edited) Iâve got an issue with horrible micro-stutter even at a constant 60 FPS. Strangely enough it is much more noticeable in interiors, although it is present outside as well I am happy with performance there. In interiors on the other hand it is horrible and for some reason it occurs even in place with no loading transition such as the SSâs home which i find really strange. By far the worst places though are small/tiny interior cells such as the root cellar in sanctuary. I really donât understand why this is happening. I am getting well over 100 frames in these places so it isnât performance related. I have tried disabling v sync and forcing through Nvidia CP, setting v sync to adaptive and just on, setting max pre-rendered frames to 1, limiting frames to 58, 59 and 60 and running in borderless and full screen. Does anybody have any other ideas or potential fixes? My setup is an I7-4790k, GTX 980, 16gb ram. Iâm not sure what else youâd need to know but let me know if I missed something. Appreciate any help, cheers in advance. Edit: right, just wanted to update this to give the best combination of settings that I have found for my system to greatly reduce stutters. I have set monitor technology to g sync, v sync to fast sync and max pre-rendered frames to 4. I then set refresh rate to 144hz and capped frame rate to 60 in inspector to avoid frame rate ever reaching the refresh rate of the monitor. Not sure how or why this has worked but it has (knock on wood). Thanks again to everyone for their contributions. Edited March 20, 2018 by Bazza0304 Link to comment Share on other sites More sharing options...
HeyYou Posted March 19, 2018 Share Posted March 19, 2018 Need to cap your framerate to 60 or less. Otherwise, you get exactly what you are experiencing. Link to comment Share on other sites More sharing options...
RS13 Posted March 19, 2018 Share Posted March 19, 2018 Have you tried setting you game to fast sync? That might help. I used to use Rivatuner to help with this, but a recent update made the game crash if RT was running at the same time. Link to comment Share on other sites More sharing options...
Bazza0304 Posted March 19, 2018 Author Share Posted March 19, 2018 I am forcing v sync through nvidia control panel so frame rate is capped at 60 but I have also tried capping frame rate to 58, 59 and 60 on top of that but still get the stuttering. I will try fast sync and report back. If I recall correctly fast sync doesnât limit frame rate so I will cap at 60 through profile inspector at the same time. Thanks for the suggestions. Link to comment Share on other sites More sharing options...
MissingMeshTV Posted March 19, 2018 Share Posted March 19, 2018 Unless Nvidia has changed something, I'm pretty sure that Fast Sync is only available on their 10-series cards. Can't find anything indicating that has changed but would love to know if it has been enabled for older cards. OP: You said you have your frame rate capped, but what about the refresh rate of your monitor? Just a shot in the dark that if you haven't looked at that it might be worth a look. EDIT: Another off-the-wall question I just thought of: Is your monitor connected via HDMI or Display Port? I had a similar issue on my test rig with a low-end Dell "gaming" monitor that was connected via HDMI to a GTX 970. I switched it over to Display Port and that pretty much took care of the stutter I was getting. Could be a just had a bad HDMI cable, but I didn't test further because the problem was resolved. YMMV. Link to comment Share on other sites More sharing options...
Zzyxzz Posted March 19, 2018 Share Posted March 19, 2018 No matter what, use the original vsync from Bethesda, its the best you can use. Cap your fps to 58, if you can't achieve a solid 60. This reduces stutter by preventing your game to switch between 30 and 60 hz as a base. You can also set your pre-rendered frames to 1 and force tripple buffering. I'm also playing with fullscreen+borderless (windows 10 users only, other users, use only borderless) and this is the best setup i've tried so far. I've tested everything to get rid of microstutters. Normal vsync from Nvidia does not work very good with fallout.Fast sync does only work when you can achieve a framerate that is 3 times higher than your refreshrate, otherwise it has no effect.Adaptive vsync does not work well and also causes tearing. Link to comment Share on other sites More sharing options...
Bazza0304 Posted March 19, 2018 Author Share Posted March 19, 2018 (edited) Hey guys. RedRocket I do have the option for fast sync on the 980 but I have no idea when or how it was added tbh. My monitor is 144hz but I have it set at 60hz for Fallout so v sync limits to 60 FPS. I have my monitor connected via display port. RS13 - Iâve just tried fast sync and limiting FPS by nvidia profile inspector and it looks very promising! Iâve only just started testing but even in the root cellar, which was awful before, it seems really smooth! Not noticed any tearing either. Iâm going to keep testing but hopefully this will be a solution to my stutter issues so thanks so much for that! Zzyxzz - I will try that out as well if this turns out not to work for any reason but hopefully the fast sync thing has solved it. Thank you all for taking your time to help, I really appreciate it. Edit: Iâm getting some very minor FPS drops (to 57/58) when turning quickly which I wasnât getting before and so I assume this is from limiting the FPS. I was thinking of maybe limiting to 61/62 instead of 60 as it could be caused by dropping below 60 when the refresh rate is 60hz but Iâm not sure. Iâll test some more. Edited March 19, 2018 by Bazza0304 Link to comment Share on other sites More sharing options...
RS13 Posted March 19, 2018 Share Posted March 19, 2018 Glad to hear fastsync has improved your experience. I might try leaving the framerate uncapped. What fastsync does is render as many frames as your hardware allows and then drops the extra frames, thus avoiding screentearing. So FPS detectors will detect your frame rate as being higher than 60, even though only 60 frames are being shown to you per second. Now, I don't understand the ins and out of it, microstutter is the result of poor frame times, so (as I understand it) rendering more helps because it the GPU drops frames that are rendered at irregular intervals. Link to comment Share on other sites More sharing options...
MissingMeshTV Posted March 19, 2018 Share Posted March 19, 2018 Thanks for the updated info on Fast Sync. When I first got my 1070 it was touted an being exclusive to the Pascal architecture cards. Good to know they've enabled it for older cards as well. Link to comment Share on other sites More sharing options...
Bazza0304 Posted March 19, 2018 Author Share Posted March 19, 2018 (edited) That makes sense mate because I am getting drops to 50/55gps in areas around Cambridge police station for example but when I turn off the frame limiter it jumps up to high 60s/low 70s. Strangely though the stuttering comes back when I turn the limiter off? Iâm not really sure what to do now! Edit: interestingly setting max pre-rendered frames to 4 from 1 while using fast sync seems to reduce the fps drops outlined above although Iâm still getting periodical drops to 58/59 which happen even in areas where I am getting 90 to 100 FPS without limiting. Also I have a g sync monitor so do you think I would be better off using fast sync with v sync or g sync monitor technology? I was using v sync technology up until now. Edited March 19, 2018 by Bazza0304 Link to comment Share on other sites More sharing options...
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