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Question about Refresh Rate and G-Sync/Freesync

post #1 of 28
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Hey everyone!

I was talking to my classmate and he has a G-Sync monitor and I still use my old 900p 60hz monitor. There are times when I have bad tearing because 900p with max settings isn't taxing on a R9 390. As we know, when you're producing 100fps on a 60hz monitor you'll see tearing. Now if you're producing 100fps on a 144hz monitor, you wouldn't see tearing, right? If that's the case, then what's the point of G-Sync and Freesync? Is G-Sync and Freesync beneficial if your frames per second don't exceed the refresh rate of your monitor?
Edited by myresolution_72 - 11/10/15 at 9:59am
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post #2 of 28
IMHO the idea of G-Sync and Freesync is trying to get rid of any problems that may occur with a low or high fps input, Tearing is one of the many problems you may have.

I guess if you have over 144 FPS you will still suffer problems, but the idea is to maximize your game so you will be under that target, and then all tearing problems should be gone with a high refresh rate monitor such as 144hz screens.

The V-sync is an option to solve this issue but it's locked to 60fps. And if you want to gain advantage of the extra fps then this will not help you.

if you can easily produce 100+ fps and want to actually see the benefit of a high refresh rate input you need to go with a 144hz monitor, and if you produce more you should get the freesync or G-sync, at least that's how I see it tongue.gif

Note that using a G-Sync or Freesync monitor doesnt guarranty to produce more than 144Hz, I have heard that the freesync monitors goes up to around 100Hz.

Cheers rolleyes.gif
Edited by josepi - 11/10/15 at 10:15am
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post #3 of 28
G-Synch is the single best innovation in graphics fidelity since 32bit colour.


It does everything that they say it does.

Basically whatever FPS your GPU outputs, that's the refresh rate you monitor gives - for each and every frame.

You get no tearing and no stuttering, just smooth buttery gameplay.
post #4 of 28
Thread Starter 
Quote:
Originally Posted by josepi View Post

IMHO the idea of G-Sync and Freesync is trying to get rid of any problems that may occur with a low or high fps input, Tearing is one of the many problems you may have.

I guess if you have over 144 FPS you will still suffer problems, but the idea is to maximize your game so you will be under that target, and then all tearing problems should be gone with a high refresh rate monitor such as 144hz screens.

The V-sync is an option to solve this issue but it's locked to 60fps. And if you want to gain advantage of the extra fps then this will not help you.

if you can easily produce 100+ fps and want to actually see the benefit of a high refresh rate input you need to go with a 144hz monitor, and if you produce more you should get the freesync or G-sync, at least that's how I see it tongue.gif

Cheers rolleyes.gif

So what you're saying is if you get less than or equal to 144 fps then a 144hz monitor will do. If you produce more than 144 fps then even G-Sync/Freesync wouldn't help due to the hardware limitation of the monitor being 144hz, right? What benefit is there to match your refresh rate with your fps if your fps is 40 - 80 and your monitor's refresh rate hardware limitation is 144hz? What other issues will be visible since tearing couldn't happen if your fps is lower than the maximum refresh rate?
Quote:
Originally Posted by Wihglah View Post

G-Synch is the single best innovation in graphics fidelity since 32bit colour.


It does everything that they say it does.

Basically whatever FPS your GPU outputs, that's the refresh rate you monitor gives - for each and every frame.

You get no tearing and no stuttering, just smooth buttery gameplay.

Tearing is eliminated if your fps is less than the refresh rate limitation of your monitor so what scenario will produce stuttering?
Edited by myresolution_72 - 11/10/15 at 10:18am
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post #5 of 28
Stuttering is sometimes detectable with V-Sync when the fps is artificially limited to half the refresh rate (to get a whole frame to synch up with it.)

Also - G-Sync can be run with V-Sync enabled, so your fps is capped at your max refresh rate. This is what I do.
post #6 of 28
Thread Starter 
Quote:
Originally Posted by Wihglah View Post

Stuttering is sometimes detectable with V-Sync when the fps is artificially limited to half the refresh rate (to get a whole frame to synch up with it.)

Also - G-Sync can be run with V-Sync enabled, so your fps is capped at your max refresh rate. This is what I do.

Unless you have an extremely powerful system you're not seeing 144 fps in modern games at 1440p maxed out. In this case you typically wouldn't have V-Sync on anyway because you're not hitting your limit. So that renders G-Sync/Freesync useless. It'll help when you're playing something like Counter Strike competitively and it's able to run at 144 fps to match the 144hz limit so G-Sync/Freesync assists to get rid of any input lag, right? It seems as though you're paying a higher price for a 144hz limitation from 60hz and could save money by getting a 144hz monitor minus the G-Sync/Freesync since a lot of systems won't hit that limit.
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post #7 of 28
Well, let me try to explain myself again tongue.gif

  • 60fps or below = You can use any 60Hz monitor
  • 60fps or above = You can use any 60Hz monitor but to get rid of tearing you need V-Sync On locking the fps input to 60fps (matching the maximum 60Hz). Problem is that you will not gain advantage of extra fps produced by a powerful gpu. So is advisable to try to play everything on High or Ultra trying to produce fps around that target.
  • 60fps to 144 fps = You can use high refresh rate monitor (up to 144hz to this date) and allow you to gain the benefit of the extra fps produced by a powerful GPU, But same thing as before is advisable to try to play everything on High or Ultra trying to produce fps around the target that you want, maybe 90 fps or 120 fps or the maximum 144 fps. Problem is anything over fps will cause tearing because it's just like the 60hz monitor but with higher hz.
  • G-Sync / Freesync = You can use monitors that have these technologies, what they intend to do is that the fps your GPU outputs, that's the refresh rate you monitor gives - for each and every frame. But that doesnt mean that you will have for example 144fps displayed, because that's limited by the monitor, I have knowledge that Freesync monitors at the moment only goes around 100Hz. So you will have a much better experience using this kind of monitors than using a normal 60Hz or a 144Hz because it's going to ensure that tearing / shuttering will gone, because the amount of frames are limited by the GPU and anything over the limit of the monitor is not displayed.

At least that's how I see it rolleyes.gif

What other issues will be visible since tearing couldn't happen if your fps is lower than the maximum refresh rate?

With V-Sync On you could suffer from stuttering, but other than that, I don't know tongue.gif
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post #8 of 28
Thread Starter 
Quote:
Originally Posted by josepi View Post

Well, let me try to explain myself again tongue.gif

  • 60fps or below = You can use any 60Hz monitor
  • 60fps or above = You can use any 60Hz monitor but to get rid of tearing you need V-Sync On locking the fps input to 60fps (matching the maximum 60Hz). Problem is that you will not gain advantage of extra fps produced by a powerful gpu. So is advisable to try to play everything on High or Ultra trying to produce fps around that target.
  • 60fps to 144 fps = You can use high refresh rate monitor (up to 144hz to this date) and allow you to gain the benefit of the extra fps produced by a powerful GPU, But same thing as before is advisable to try to play everything on High or Ultra trying to produce fps around the target that you want, maybe 90 fps or 120 fps or the maximum 144 fps. Problem is anything over fps will cause tearing because it's just like the 60hz monitor but with higher hz.
  • G-Sync / Freesync = You can use monitors that have these technologies, what they intend to do is that the fps your GPU outputs, that's the refresh rate you monitor gives - for each and every frame. But that doesnt mean that you will have for example 144fps displayed, because that's limited by the monitor, I have knowledge that Freesync monitors at the moment only goes around 100Hz. So you will have a much better experience using this kind of monitors than using a normal 60Hz or a 144Hz because it's going to ensure that tearing / shuttering will gone, because the amount of frames are limited by the GPU and anything over the limit of the monitor is not displayed.

At least that's how I see it rolleyes.gif

What other issues will be visible since tearing couldn't happen if your fps is lower than the maximum refresh rate?

With V-Sync On you could suffer from stuttering, but other than that, I don't know tongue.gif

We're on the same page as far as how it works.

When < 144fps a 144hz monitor gets the job done and G-Sync/Freesync in that scenario offers no benefit.

When > 144fps a 144hz will begin to tear and this is where G-Sync/Freesync comes into play but once you use V-Sync with Triple Buffering it eliminates the input lag which G-Sync/Freesync is designed to avoid.

In my opinion, I'm having a hard time understanding the benefit of spending the money for a G-Sync/Freesync monitor. Everything you've said I understand, I'm just trying to reason why G-Sync/Freesync is better than V-Sync with Triple Buffering on a 144hz monitor.

Based on what I just read, G-Sync/Freesync fixes the stutter that some report even with Triple Buffering on. So you're pretty much paying a premium price for zero chance of a small possibility of stutter even with Triple Buffering.
Edited by myresolution_72 - 11/10/15 at 3:36pm
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post #9 of 28
Quote:
Originally Posted by myresolution_72 View Post

Unless you have an extremely powerful system you're not seeing 144 fps in modern games at 1440p maxed out. In this case you typically wouldn't have V-Sync on anyway because you're not hitting your limit. So that renders G-Sync/Freesync useless. It'll help when you're playing something like Counter Strike competitively and it's able to run at 144 fps to match the 144hz limit so G-Sync/Freesync assists to get rid of any input lag, right? It seems as though you're paying a higher price for a 144hz limitation from 60hz and could save money by getting a 144hz monitor minus the G-Sync/Freesync since a lot of systems won't hit that limit.

Elite dangerous 1440p for me is locked at 144Hz.

But that's irrelavent.

G-Sync works best at 45 - 90FPS when the frame times are varying , it eliminates tearing.

Once you've seen it you will understand, I can't play with G-Sync off now.
post #10 of 28
Quote:
Originally Posted by myresolution_72 View Post

Why G-Sync/Freesync is better than V-Sync with Triple Buffering on a 144hz monitor.

Based on what I just read, G-Sync/Freesync fixes the stutter that some report even with Triple Buffering on. So you're pretty much paying a premium price for zero chance of a small possibility of stutter even with Triple Buffering.

Yes we are on the same page rolleyes.gif

I think that the idea of the G-Sync/Freesync is to actually reduce the amount of steps the user have to do in order to configure to the best settings the drivers. While it's true that you can use Triple Buffering is not really a final solution, and that's why they came with that creative idea of letting the GPU decide how fast the monitor should refresh, and by doing this they solved 2 things at the same time "tearing / shuttering"

Now the advantage for them is that they can use faster refresh rate screens, but they are not obliged to use 144Hz screens, and if you produce more than 144fps then you can solve the "tearing / shuttering" problem with this technology. Although some G-sync monitors are rated to be 144Hz, I believe Freesync aren't that fast yet.
Quote:
Originally Posted by Wihglah View Post


Once you've seen it you will understand, I can't play with G-Sync off now.

I also think that this is needed to be seen in person, comparing all those variables. Because the sad part is that a youtube video or any video can not reproduce the results that the screen show. So if we want to see how G-sync/ Freesync and 144Hz works, we need to see it with our on eyes and touch it biggrin.gif
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