G-Sync with DirectDraw games
Posted: 21 Jun 2017, 09:15
I was wondering if anyone knows of a way to improve the performance of G-Sync with DirectDraw games.
An example of what I'm talking about is Adventure Game Studio games.
While many of those games have an option for a D3D9 renderer, on Win10 CU I just get a black screen and have to fall back to the DirectDraw 5 renderer.
The games run at a fixed 40 FPS rate, but with G-Sync active the monitor's refresh rate is constantly jumping around between 35-45 FPS and the games stutter terribly.
What I've had to do is create an 80Hz refresh rate and disable G-Sync to get the games to play smoothly.
But while 40 FPS at a fixed 80Hz is mostly smooth, you do still get an occasional stutter.
1/2 refresh rate V-Sync does not appear to do anything, nor do framerate limiters.
Unfortunately trying to manually create a 40Hz refresh rate does not seem to work, unless there's some trick to it.
Is there a reason why the refresh rate gets so erratic with games like these?
I've noticed similar behavior in some other games/apps too.
Perfectly smooth performance with G-Sync disabled, but lots of framerate fluctuations/stuttering with it enabled.
An example of what I'm talking about is Adventure Game Studio games.
While many of those games have an option for a D3D9 renderer, on Win10 CU I just get a black screen and have to fall back to the DirectDraw 5 renderer.
The games run at a fixed 40 FPS rate, but with G-Sync active the monitor's refresh rate is constantly jumping around between 35-45 FPS and the games stutter terribly.
What I've had to do is create an 80Hz refresh rate and disable G-Sync to get the games to play smoothly.
But while 40 FPS at a fixed 80Hz is mostly smooth, you do still get an occasional stutter.
1/2 refresh rate V-Sync does not appear to do anything, nor do framerate limiters.
Unfortunately trying to manually create a 40Hz refresh rate does not seem to work, unless there's some trick to it.
Is there a reason why the refresh rate gets so erratic with games like these?
I've noticed similar behavior in some other games/apps too.
Perfectly smooth performance with G-Sync disabled, but lots of framerate fluctuations/stuttering with it enabled.