Does anyone know what happens in the following scenario?
144hz monitor
Half Vertical Sync (=vsync at 72hz)= 72fps
In other words running half vsync at 72hz that limits the fps to 72, WHILE maintaining monitor refresh rate at 144.
- Does the image benefit from the reduced motion blur, afforded by 144hz? You should see an improvement over 60Hz, yes, but not all panels are equal.
- Is input lag the same as it would be at 60fps/60hz? Latency should be reduced at 72. You will need to cap framerate on or around 72fps to prevent excessive latency caused if the frame rate exceeds 72 though. The exact rate required will depend on the game.
- Does that additional 12 fps over 60 produce even a slight smoothness increase on the above setup? Subjective. More frames = more information for the brain, which is always better, but some people are not sensitive to small frame rate differences. Personally, above about 90Hz/fps is where I begin to not see a difference.
- Do any issues occur? (e.g judder) It will depend on the game.
Thanks. I'm getting conflicting information all the time and I'm totally confused.
You're getting conflicting information because the answer to a lot of these questions is "it depends". Games will behave differently. This depends on the way the game is written with regards to output buffers.
It sounds to me like you should be in the market for a display with variable refresh rate function as it would make all of these questions moot.