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Nvidia to support Freesync?

Gregster said:
No, G-Sync works all the way down to 1fps and I tested it at 14 fps. Not playable but continued smoothly.

https://www.pcper.com/reviews/Graphics-Cards/Dissecting-G-Sync-and-FreeSync-How-Technologies-Differ

Worth a read to help straighten misleading things out and they show it on test in a vid.
Click to expand...

Some of the information is outdated quite a bit (see https://www.amd.com/Documents/freesync-lfc.pdf for instance) but:

pcper.com said:
But what happens with this FreeSync monitor and theoretical G-Sync monitor below the window? AMD’s implementation means that you get the option of disabling or enabling VSync. For the 34UM67 as soon as your game frame rate drops under 48 FPS you will either see tearing on your screen or you will begin to see hints of stutter and judder as the typical (and previously mentioned) VSync concerns again crop their head up. At lower frame rates (below the window) these artifacts will actually impact your gaming experience much more dramatically than at higher frame rates (above the window).

G-Sync treats this “below the window” scenario very differently. Rather than reverting to VSync on or off, the module in the G-Sync display is responsible for auto-refreshing the screen if the frame rate dips below the minimum refresh of the panel that would otherwise be affected by flicker. So, in a 30-144 Hz G-Sync monitor, we have measured that when the frame rate actually gets to 29 FPS, the display is actually refreshing at 58 Hz, each frame being “drawn” one extra instance to avoid flicker of the pixels but still maintains a tear free and stutter free animation. If the frame rate dips to 25 FPS, then the screen draws at 50 Hz. If the frame rate drops to something more extreme like 14 FPS, we actually see the module quadruple drawing the frame, taking the refresh rate back to 56 Hz. It’s a clever trick that keeps the VRR goals and prevents a degradation of the gaming experience. But, this method requires a local frame buffer and requires logic on the display controller to work. Hence, the current implementation in a G-Sync module.
Click to expand...

LFC is still somewhat more crude in implementation than the G-Sync alternative due to the lack of additional local frame buffers.
 
Gregster said:
No, G-Sync works all the way down to 1fps and I tested it at 14 fps. Not playable but continued smoothly.

https://www.pcper.com/reviews/Graphics-Cards/Dissecting-G-Sync-and-FreeSync-How-Technologies-Differ

Worth a read to help straighten misleading things out and they show it on test in a vid.
Click to expand...
Nice, was not sure if mine was 30fps or lower. Never seen any screen tearing and I am pretty sure I have dipped below at some point or another when playing FF 15.

This is why GeForce cards working on Freesync monitors now makes no difference to me, as the best 4K monitor has a range of 40-60fps only.
 
TNA said:
This is why GeForce cards working on Freesync monitors now makes no difference to me, as the best 4K monitor has a range of 40-60fps only.
Click to expand...
I believe my monitor has a 40-60 Freesync range and so I am hoping this will be enough to handle dips below 60 FPS. If frame rate is dipping below 40 frequently enough to be noticed then I would say settings need to be adjusted.
 
IT Troll said:
I believe my monitor has a 40-60 Freesync range and so I am hoping this will be enough to handle dips below 60 FPS. If frame rate is dipping below 40 frequently enough to be noticed then I would say settings need to be adjusted.
Click to expand...
Depends on your needs. I am fine with it dipping. Like for example I am playing xcom 2 right now, I have even setup afterburner to only use 75% of power limit and run the game whisper quite on my Titan xp reference cooler. This means it dips sometimes, but it does not bother me one bit as no tears and it makes no difference to game play. Next I will play Frostpunk and after that Divinty Original Sin 2. None of these games require 60fps solid and dips are perfectly fine by me as long as it does not tear. No need to reduce image quality settings ;)

In your case even athe slightest dip you will notice it as it will tear and you will indeed need to reduce image quality to compensate.
 
Rroff said:
Some of the information is outdated quite a bit (see https://www.amd.com/Documents/freesync-lfc.pdf for instance) but:



LFC is still somewhat more crude in implementation than the G-Sync alternative due to the lack of additional local frame buffers.
Click to expand...

Explain that one to me, how is frame doubling a more crude implementation if the GPU is doing it? The fact that the Gsync module adapts overdrive to help with ghosting has been shown but nothing has been shown to have a discernible difference in the implementation of frame doubling in freesync vs gsync from what I've seen. In fact I have my Rog Swift in front of me as well as my Alienware Gsync laptop mirroring the same image and there is no discernible difference between the two yet the ROG swift has a dedicated module and my laptop does not...so Nvidia clearly disagree with you since my Laptop Gsync isn't labelled as a Gsync Light/Crude.
 
IT Troll said:
I believe my monitor has a 40-60 Freesync range and so I am hoping this will be enough to handle dips below 60 FPS. If frame rate is dipping below 40 frequently enough to be noticed then I would say settings need to be adjusted.
Click to expand...

Freesync range of 40-60? :eek: are you sure that's right? I can't see any point in that unless it's a 4k monitor. Most Freesync monitors, mine included, run at around 45-144
 
TonyTurbo78 said:
Ah ok. How do you keep your games in such a small Freesync range at such a demanding res?
Click to expand...
So far, dropping AA and motion blur (which I hate) has generally been enough to keep things running around 60. However, I have the new Tomb Raider and Assassin’s Creed games on my to-play list and so I am hoping these will be helped by leveraging the 40-60 Freesync range.
 
MrMarvelous said:
Thanks. Is there a list of supported monitors? I've got a BenQ XL2720T - i'm guessing it's too old for support?
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The list is rather short at the minute. But you will be able to manually enable the driver feature to try it on any Freesync monitor.
  • Acer XFA240
  • Acer XG270HU
  • Acer XV273K
  • Acer XZ321Q
  • AOC AGON AG241QG4
  • AOC G2590FX
  • Asus MG278Q
  • Asus XG248 / XG258
  • Asus VG258Q
  • Asus VG278Q
  • BenQ XL2740
https://www.nvidia.com/en-us/geforce/products/g-sync-monitors/specs/
 
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This is going to work out for them pretty good, release a decent middle priced card and many folk who already have freesync (which is quite a few) will be super tempted to hop over to Nvidia. Sneaky really.
 
Threepwood said:
This is going to work out for them pretty good,
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But I can see this is going be pretty bad for people that already own G-sync Monitors as I can see there secondhand value dropping big time...

Looks like I better try selling my old Asus PG278Q ROG Swift G-sync 144hz monitor quickly before the value of it completely drops
 
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Threepwood said:
This is going to work out for them pretty good, release a decent middle priced card and many folk who already have freesync (which is quite a few) will be super tempted to hop over to Nvidia. Sneaky really.
Click to expand...

its as if poor share performance has suddenly woke them up

rtx 2060 good price
freesync support
dvi back from the dead
 
I wonder if the newly announced Alienware OLED gaming monitor will have G-Sync or will use Adaptive-sync. And if it uses the latter, if there are going to be any timing/blanking issues. Variable over-drive won't be needed since OLED pixels are almost instantaneous.
 
chaparral said:
But I can see this is going be pretty bad for people that already own G-sync Monitors as I can see there secondhand value dropping big time...

Looks like I better try selling my old Asus PG278Q ROG Swift G-sync 144hz monitor quickly before the value of it completely drops
Click to expand...


I expect the oposite. If Gsync become even more nich then demand will increase over supply as more screen manufacturers will drop gsync support.


Prices for gsync monitors might increase substantially.
 
SS-89 said:
Explain that one to me, how is frame doubling a more crude implementation if the GPU is doing it? The fact that the Gsync module adapts overdrive to help with ghosting has been shown but nothing has been shown to have a discernible difference in the implementation of frame doubling in freesync vs gsync from what I've seen. In fact I have my Rog Swift in front of me as well as my Alienware Gsync laptop mirroring the same image and there is no discernible difference between the two yet the ROG swift has a dedicated module and my laptop does not...so Nvidia clearly disagree with you since my Laptop Gsync isn't labelled as a Gsync Light/Crude.
Click to expand...

Some more info here https://www.pcper.com/reviews/Graph...on-Improves-FreeSync-and-Frame-Pacing-Support I don't know where the updated results are off the top of my head but they later sat down with an oscilloscope to examine what both where doing but as AMD are frame doubling in software it increases the latency before you can recover from a low framerate situation amongst other issues and makes it harder to handle situations where you need multiples of the refresh rate rather than just doubling.
 
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