Hi,

As the title states, should I buy a Gsync Monitor and does it help to gain some fps ? 

Thanks

A Gsync monitor does not increase your fps. It automatically adapts constantly its refresh rate to your (changing) fps and contributes to a better fluidity.

1 hour ago, hkhoanguyen said:

As the title states, should I buy a Gsync Monitor and does it help to gain some fps ? 

G-Sync only works from 30FPS on to the FPS number that matches the maximal refresh rate of your monitor. In my case, it is 144Hz. This means, G-Sync works from 30-144 FPS on my monitor.

BUT: due to the lower limit (30FPS), I completely disabled G-Sync for Prepar3d, as I have a 30FPS limit defined for P3D. Means: if you put your settings as such that you have more than 30 FPS, you might consider buying a G-Sync monitor, if you have your settings as such that you have mostly between 20 and 30 FPS (as I do), G-Sync will not help you at all.

Besides that, as Tony already mentioned, G-Sync will not help you to gain FPS. How could it, it is a monitor display technology...

10 hours ago, AnkH said:

G-Sync only works from 30FPS on to the FPS number that matches the maximal refresh rate of your monitor.

We've been over this before AnkH...quit misleading folks with this patently false statement. Any recent G-Sync monitor will sync to ANY refresh rate up to the fastest rate supported by your monitor. You may in fact have an older G-Sync monitor that won't go be low 30, but that is not the case with current generation. There is no magic bottom limit sync rate i.e. 30 fps.

It is true however that G-Sync will NOT provide better fps.

I like my Gsync monitor, but I switch back and forth between Gsync (w/ unlimited frames) and RTSS locked at 30. Sometimes, and on some Nvidia drivers, Gsync can cause a rapid flickering effect that's pretty annoying. I think it happens mostly at low very low frame rates, which is when I switch to RTSS. I also tend to see it more with the FSL A320, but that just might be correlated with very low FPS.

The nice thing about Gsync is that you can enjoy high frame rates in situations where they can be achieved and tamp down hitching due to rapid FPS changes, but still sync frames in more performance-intense situations. There are lots of places I can get 40/50/60 FPS in PMDG's aircraft (and sometimes FSL), so when I can, I like to play at that framerate. There's a myth (more of a meme at this point) that the human eye can't see over 24 FPS, but I can easily tell the difference between 24/30/50/60+. 

7 hours ago, somiller said:

We've been over this before AnkH...quit misleading folks with this patently false statement.

While it might be technically false, I agree, it is still an argument against most of the G-Sync monitors nowadays, especially if you not just fall into the marketing trap of nVIDIA and sell their marketing blabla as being the non plus ultra. It is a fact that as soon as the FPS gets too low, G-Sync is only maintained by doubling the frames for those panels that can not sustain low Hz refresh rates. And this you see, even if the marketing Guru's are trying to convince people otherwise. And, as a matter of fact, most monitor panels are still not capable of using refresh rates below 30Hz, that is why I will stick to this maybe technically not entirely correct statement of mine...

Whether or not it is precisely 30, or more like 25, 22, 28 or whatever refresh rate the specific G-Sync panel finally has as lower limit, is not really of importance and makes things way to complicated for a novel user to explain.

Otherwise, feel free to take the official G-Sync monitor list and tell the topic starter for each model seperately the low FPS limit he will observe. Meanwhile, I will stick to the 30Hz/30FPS cutoff, even it is not super precise.

9 hours ago, Chapstick said:

There's a myth (more of a meme at this point) that the human eye can't see over 24 FPS, but I can easily tell the difference between 24/30/50/60+. 

And I have a friend who sees flicker at anything below 100Hz. But I tell you that I an many others cannot see any difference once the rate is over about 25Hz (in fact for me even 20Hz).

It's part of the variability between visual acuity and perception between folks.

Pete

 

It's also a part of aging.....😂.....Doug

21 hours ago, W2DR said:

It's also a part of aging.....😂.....Doug

I used to suffer that....however my cure is another glass of the amber liquid (none of that malt rubbish).

Now everything looks blurred...

I see that LG's new monitor is getting nearer to release - the LG 38GL950G-B according to the Computex 2019 show....G-Sync, a vertical res of 1600. Wowee...when that arrives here (it is out in the US ?) I'll be looking at a new i9 9900K system.

I suspect that the amber liquid may then take second place...

Regards

Bill

....'hic'...

hkhoanguyen,

Are the answers provided by forum members useful to you???

On 7/22/2019 at 6:30 AM, AnkH said:

G-Sync only works from 30FPS on to the FPS number that matches the maximal refresh rate of your monitor. In my case, it is 144Hz. This means, G-Sync works from 30-144 FPS on my monitor.

BUT: due to the lower limit (30FPS), I completely disabled G-Sync for Prepar3d, as I have a 30FPS limit defined for P3D. Means: if you put your settings as such that you have more than 30 FPS, you might consider buying a G-Sync monitor, if you have your settings as such that you have mostly between 20 and 30 FPS (as I do), G-Sync will not help you at all.

I have been doing experiments this week with a 24" Dell S2417DG 165Hz G-Sync monitor, and my experience strongly suggests that what you say here is no longer correct.  It might have held true for the first and/or second generation G-Sync versions, but the current G-Sync monitors with the V2 boards (the first two generations are both interchangeably referred to as V1) do not appear to exhibit any sort of a 30Hz or other low-frequency floor.

The G-Sync variant of LFC (low frequency compensation), which was not implemented in early G-Sync versions, does cause doubling of the frames when the rate drops below the LCD panel's lower limit, but the monitor pretty effectively and instantly shifts up to that doubled frame rate.  For example, with a 30 Hz LCD panel in a G-Sync monitor, if frames drop to 20 fps, the driver will send two identical frames at 40fps, and the monitor will increase its refresh rate to 40 fps.  Now 20 fps still looks like 20 fps...below 30 Hz, shutter effect starts becoming noticeable and so it's not perfectly smooth, but with traditional v-sync set at 1/2 horizontal refresh or using RTSS, when the frame rate drops below the set rate it stutters like crazy.

I tried FSX in a scenario that hammers frame rates into the teens and low 20s with the new G-Sync monitor and an older 24" Samsung 60Hz display in a side-by-side comparison, and the G-Sync is much, and I do mean MUCH smoother.  Without V-sync the 60hz monitor exhibits tearing, and with v-sync it exhibits pretty significant stuttering and chatter.  The G-Sync display does not exhibit tearing, and the only lack of smoothness comes from the fact that 18-22 fps in the test scenario is going to show some shutter effect, as there's enough movement between frames to impact the illusion of smoothness (film would still work at these frame rates because of the additional effects of image blur). 

Most of the "conventional" wisdom that's referenced regarding the so-called 30Hz floor dates back to 2015 and earlier...my experience leads me to believe that the current G-Sync monitors are not your grandpappy's (well, in computer years, anyway) G-Sync.

Regards

13 hours ago, BillCusick said:

I used to suffer that....however my cure is another glass of the amber liquid (none of that malt rubbish).

Now everything looks blurred...

I see that LG's new monitor is getting nearer to release - the LG 38GL950G-B according to the Computex 2019 show....G-Sync, a vertical res of 1600. Wowee...when that arrives here (it is out in the US ?) I'll be looking at a new i9 9900K system.

I suspect that the amber liquid may then take second place...

Regards

Bill

....'hic'...

Johnny Walker Blue will solve all your problems. And, it's cheaper than a new system 😂............Doug