![]() ![]() That motion blur can hide tiny microstutters that are small frametime variations. Your actions of eye-tracking across stationary refresh cycles on most displays (LCD displays which are sample-and-hold), means that the static images are smeared across your retinas - generating the motion blur that you see. The humankind invention of a frame rate (using static images to create moving images) often creates side effects such as stutter (at low frame rates, like a slow vibrating guitar string) or motion blur (at high frame rates, like a blurry fast vibrating guitar string). This is the regular frame rate (not erratic stutter).Īlso look at how stutters blend into motion blur in this variable-speed motion test: High frame rates vibrate so fast like a blurry high-frequency guitar string. Low frame rates vibrate like a slow guitar string. Next, Understand Stutters & Motion Blur Is Essentially Same Thingįirstly, the cause of stutters & common display motion blur are the same thing, especially if you closely watch. That's the frame rate capping error (caps aren't perfect frametimes) ![]() That's the tiny difference (144Hz may be 143.998Hz) You know audio beat frequencies? Same thing with framerate beat-frequencying against refresh rate.ġ41fps at 144Hz = 3 stutters per second & 3 tearline roll cycles per secondġ00fps at 144Hz = ultra-high-frequency stutters that blend into motion blur.ġ47fps at 144Hz = Tearline rolls upwards 3 cycles per secondġ46fps at 144Hz = Tearline rolls upwards 2 cycles per secondġ45fps at 144Hz = Tearline rolls upwards 1 cycles per secondġ44fps at 144Hz = Tearline mostly stationaryġ43fps at 144Hz = Tearline rolls downwards 1 cycles per secondġ42fps at 144Hz = Tearline rolls downwards 2 cycles per secondġ42fps at 144Hz = Tearline rolls downwards 3 cycles per second It's a function of stutter harmonics and beat frequencies. Hopefully this post has helped (partially) clarify things. Your post is about what I expected, but is easy for me to explain and is pretty much elementary display science to my head. So what I learn from this testing is that having monitor hz significantly higher than your FPS is preferable, and negates the need for vsync or freesync. ![]() Vsync is OFF.įreesync OFF, no frame limit, 160-190 FPS = not full tearing, but not smooth.įreesync OFF + 144 frame rate limit = obvious tearing.įreesync OFF + 141 frame rate limit = not full tearing but very obvious waves.įreesync OFF + 120 frame rate limit = better, but not completely smooth.įreesync OFF + 100 frame rate limit = smooth.įreesync ON + 141 frame rate limit = smooth. Overdrive (Rampage Response) is ON "Faster". I'm on the 144hz XG2402 mentioned in the OP. I'm very confused by this thread and by reading in other places that " a 144Hz monitor 140fps looks better than a 240Hz 140fps". ![]()
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