I tried to read about AMD FreeSync on AMD and HP websites but I couldn't clear all my doubts.
Suppose there is a monitor with maximum 75Hz refresh rate. And it has FreeSync range as 48Hz-75Hz.
First, I've learned that FreeSync will work only when game FPS is below monitor's maximum refresh rate (75Hz in this case) i.e., 62 FPS. (Please correct me if I'm wrong). If it's above it, e.g., 110 FPS in the game, screen tearing issue won't solve with FreeSync. It would become useless.
So I understand that in order for FreeSync to be effective, the game FPS should fall between the FreeSync refresh rate range and it should be below monitor's maximum refresh rate.
Now here comes the doubts. I read some posts on Reddit where many people comment that screen tearing occur when FPS is higher than refresh rate of monitor - which is correct. Others say it happens both way. Even if it is lower than refresh rate screen tearing may happen.
Some say when FPS is below refresh rate, screen tearing doesn't happen. But instead you see other issues like input lag and stuttering. And that is where FreeSync helps.
So I'm not sure how true they are when they say screen tearing doesn't happen when FPS is lower than max refresh rate of monitor. And that makes me wonder what problem does FreeSync actually fixes to improve gaming experience.
And if they are actually true, it doesn't make sense (to me) when monitor companies market the products with words like "FreeSync to fix screen tearing". I maybe wrong here but I'm not sure.
Given all that, does FreeSync actually fixes screen tearing? Or it just fixes other issues to make game experience better?