Vsync

[p123]

What Vsync means and how it affects the perfomance?

[Princess Luna]

4 minutes ago, p123 said:

What Vsync means and how it affects the perfomance?

VSync is meant to sync your fps to your monitor hz in order to eliminate screen tearing, it affects performance in the sense of limiting the fps if applicable.

[Mike87]

If you have a 60hz monitor, you will only have 60fps ingame.

 

Pro:

-Less CPU and GPU usage

-Less/No Screentearing

 

Con:

-Input lag

-Not so smooth frames. mostly noticable in egoshooters when you look around very fast 

[narrdarr]

The input is so bad. I use to play pubg with sync for bit dropped my kd to almost 50%

[pstarlord]

 

[Maxxtraxx]

11 hours ago, p123 said:

What Vsync means and how it affects the perfomance?

Vsync locks your GPU's sequential image production and output (frames per second) to the same rate that the monitor displays them, in many cases that is 60hz, or 60 frames per second.

 

The up sides are:

there will be no screen tearing: this means without vsync when new image arrives to the display in the middle of posting the previous image it will begin using the new image while still in the middle of posting the previous image on the screen, this means part of the screen will be the first image and part of the screen will be the second image and the images are different so there will be a visible "tear" in the on screen image. Vsync eliminates this tearing by only using one image during every hz or display cycle that the monitor displays.

 

Vsync is great IMO, but not flexible and can cause stuttering if your PC cannot constantly without interruption feed exactly 60 frames per second to the monitor.

 

if your PC cannot maintain 60 FPS at all times, then anytime it misses sending the next image the monitor will be forced to use the previously displayed image without any changes, this will cause a hiccup as everything on screen pauses for 2 (or more) images.

 

It is recommended that you have a PC that is able to deliver a Minimum FPS of 60 for the game at the resolution and graphics settings you have enabled as anytime the PC is unable to provide 60FPS you will experience stuttering.

 

If you can meet the above requirements and are ok with 60hz/FPS (some people desire 120hz or 240 hz) then Vsync will serve you very well.

 

Example: i run a 9900k @5Ghz and 1080Ti @2012Mhz with a 1440p 60hz IPS monitor, my pc can quite easily provide more than 60fps in every game I have played and thusly Vsync works great and provides a smooth, tear free experience, and to reduce input lag I also disable additional frame buffering whenever possible in the settings(this means my GPU will not store up completed frames to use in the event that it hits a speed bump and cannot reach the 60FPS for any reason there will be a hiccup... but the GPU is forced to render a new image every time with the current inputs at a rate of 60FPS, this reduces input lag but also raises the possibility of missed frames sent to the monitor)

 

Good video to watch:

2 hours ago, pstarlord said: