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My GSYNC experiences

James J said:
Probably quite a good analogy to be honest. People think that they have a good experience with vsync off and can't see tearing due to playing at 144hz, but theres definitely a positive difference in clarity and smoothness of the image with gsync enabled regardless.
Click to expand...

See this the thing that gets me. How can it feel smoother than vsync off when vsync off has no frame latency added at all?
 
spoffle said:
Because it dynamically adjusts the display's refresh rate in line with the FPS the card is managing to output
Click to expand...

Yeah, its a motion thing, there was a video of the pendulem thing kicking about that illustrated it. Each frame stays perfectly in sync at 16.something ms, rather then frames being reproduced/skipped depending on frame rate vs refresh rate.

The nvidis guy in the pcper video explains it better :p
 
pgi947 said:
Yeah, its a motion thing, there was a video of the pendulem thing kicking about that illustrated it. Each frame stays perfectly in sync at 16.something ms, rather then frames being reproduced/skipped depending on frame rate vs refresh rate.

The nvidis guy in the pcper video explains it better :p
Click to expand...

But the stutter with Vsync isn't something you get with Vsync off. So I don't understand how taking a frame and matching up to the display can make the frame rate smoother than having Vsync off what is not being synced at all.
Isnt the reason alone for Gysnc to remove the issues of Vsync what are Screen tear and Input lag plus Frame stutter when your GPU cant keep up with Refresh rate.

all apart from Screen tear dont happen when Sync is disabled. So therefore Gsync should be has the same smoothness wise to having sync disabled.
Is they a bench out there testing say 120fps Gsync vs 120fps No sync to test Frame rate latency and input lag?

Am going to need more convincing. I total see the benefit to someone using Vsync and then Gsync though.
 
shankly1985 said:
But the stutter with Vsync isn't something you get with Vsync off. So I don't understand how taking a frame and matching up to the display can make the frame rate smoother than having Vsync off what is not being synced at all.
Isnt the reason alone for Gysnc to remove the issues of Vsync what are Screen tear and Input lag plus Frame stutter when your GPU cant keep up with Refresh rate.

all apart from Screen tear dont happen when Sync is disabled. So therefore Gsync should be has the same smoothness wise to having sync disabled.
Is they a bench out there testing say 120fps Gsync vs 120fps No sync to test Frame rate latency and input lag?

Am going to need more convincing. I total see the benefit to someone using Vsync and then Gsync though.
Click to expand...

Think you might have misunderstood the importance of syncing up the framerate to the refresh rate. Lets use the 144hz as an example instead of 60, which no one really cares about anyway as gamers.

144hz means that its scan rate on the monitor itself is roughly 7ms (compared to 16ms at 60hz). Now, modern GPU's can render faster than that, with the lowest I've seen so far, even in BF4 on ultra, is 3.8ms render speed. In a perfect world, that means 144hz shouldn't have any lag or tearing. However, when you start hitting 8ms draw times or even slower, the scan rate quickly becomes unsynced, leading to tearing. You won't even notice the difference in the draw times when gaming (typically) until you get a big enough hit in your FPS. The thing is though, you'll definitely have visual artifacts on your screen due to the constant shifting in draw times meaning your monitors scan is all over the place. Might be hard to notice as you accept them as the norm after years of use, yet gsync fixes that.

Frames render faster than your scan rate? Perfect world scenario, no issues. Frames render slower than your scan rate? Gsync alters the refresh rate to match the new draw rate, keeping an extremely smooth experience.
 
Would love to know if it makes Planetside 2 feel smoother, that would be a great test as that game regularly drops <50 fps.

If Freesync doesn't rear its head within the next 12 months I will likely move over to Nvidia for G Sync.
 
shankly1985 said:
But the stutter with Vsync isn't something you get with Vsync off. So I don't understand how taking a frame and matching up to the display can make the frame rate smoother than having Vsync off what is not being synced at all.
Isnt the reason alone for Gysnc to remove the issues of Vsync what are Screen tear and Input lag plus Frame stutter when your GPU cant keep up with Refresh rate.

all apart from Screen tear dont happen when Sync is disabled. So therefore Gsync should be has the same smoothness wise to having sync disabled.
Is they a bench out there testing say 120fps Gsync vs 120fps No sync to test Frame rate latency and input lag?

Am going to need more convincing. I total see the benefit to someone using Vsync and then Gsync though.
Click to expand...

Gsync frame rate will not be smoother than with Vsync off, but that fact that there is no tearing in the frames will give an over all smoother experience, its the tear that spoils the fun.
 
James J said:
Think you might have misunderstood the importance of syncing up the framerate to the refresh rate. Lets use the 144hz as an example instead of 60, which no one really cares about anyway as gamers.

144hz means that its scan rate on the monitor itself is roughly 7ms (compared to 16ms at 60hz). Now, modern GPU's can render faster than that, with the lowest I've seen so far, even in BF4 on ultra, is 3.8ms render speed. In a perfect world, that means 144hz shouldn't have any lag or tearing. However, when you start hitting 8ms draw times or even slower, the scan rate quickly becomes unsynced, leading to tearing. You won't even notice the difference in the draw times when gaming (typically) until you get a big enough hit in your FPS. The thing is though, you'll definitely have visual artifacts on your screen due to the constant shifting in draw times meaning your monitors scan is all over the place. Might be hard to notice as you accept them as the norm after years of use, yet gsync fixes that.

Frames render faster than your scan rate? Perfect world scenario, no issues. Frames render slower than your scan rate? Gsync alters the refresh rate to match the new draw rate, keeping an extremely smooth experience.
Click to expand...

So with GSync on, the frame rate is still capped to the maximum refresh rate of the monitor?
 
While im going to purchase a g-sync monitor the second Asus released their rog swift im not choosing it for the g-sync feature, but instead for its native 144hz & 1440p res. Im looking forward to try it out, gsync that is, but its not on my most wanted list. My current Sammy SA950 is doing a fantastic job of masking whatever tear there certainly is, when its set to 120hz, to the point where you have too look for the effect too really notice anything. Atleast thats how it feels right now. Maybe it turns out that i have been ignorant the whole time.. Looking forward to finding out hehe
 
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