Previously we tackled what is G-Sync, now let’s discuss what is FreeSync and what does it do. Think of freesync as a software solution to a hardware problem most gamers experience (not very much different from what a v-sync does). Essentially, as the name suggests, it’s a synchronization technology that strives to align your graphics card output with the refresh rate of your monitor so as to smoothen the images it produces and prevent your screen from tearing and stuttering.
Without sync technology, either as hardware or software, your graphics card would throw be throwing an insane number of frames at your monitor, most of which would end up getting dropped by the monitor. Be reminded that your monitor can only display an equal number of frames as its Hz rating.
In which case, if the monitor has a refreshing rate of 60 Hz, then it’s only going to display 60 frames per second, and drop the rest.
In the event that the graphic card outputs less number of frames as your monitor’s refresh rate, the monitor will be forced to fake extra frames to meet the difference. Say, your graphics card is outputting 30 frames per second, a 60 Hz monitor will be forced to invent 30 frames to cover up for the deficit.
Back to Basics
Every time you sit in front of your PC to game, your monitor displays your game image at the same rate as its refresh rate. For most casual game model, the frame rate is placed at 60 Hz. Meaning, the monitor will be refreshing the game images after every 60 seconds.
Throwing the frames at your monitor with be the Graphics Processing Unit (GPU). But for there to be a smooth rendering of the images, the GPU has to send the frames at the same rate as the monitor’s refresh rate. Otherwise there’ll be issues with how images display on your screen.
In the event that the GPU is sending less than the required number of frames per second, your monitor display will stutter. And just in case it sends more frames that the rate at which the monitor is refreshing, your display will tear. In other words, you’ll be seeing more than one frames at a time.
While some people are likely to go on with gaming without even noticing the stuttering or tearing, there’s a fair chance it may interfere with in-game performance, besides coming off as extremely annoying to a great majority of gamers out there.
What is FreeSync?
What FreeSync does is that it tries to match up the frame rate of your GPU with the refresh rate of your monitor to eliminate the possibility of stuttering and tearing. This ensures that the images displayed on your screen get to load up more smoothly.
FreeSync appear to do a tremendous job eliminating stuttering and tearing for a smooth display of your images on-screen, even though a small section of gamers have reported to experience ghosting (objects moving behind a trail), which is mildly annoying compared to screen tearing and stuttering.
To make the most out of FreeSync and successfully manage to efficiently eliminate the problem of stuttering and tearing, it’s widely recommended that you exercise extra caution while you’re out shopping for a monitor. This is important as FreeSync is an open source technique that only works with a frame rate range of 35Hz to 90Hz. So in the event that the frame rate of your monitor happens to fall out of this range, then there’s a huge possibility you may NOT be able to solve the tearing and stuttering problem of your display with FreeSync.