G-/Freesync for Demos
category: gfx [glöplog]
Hi,
My old trusty samsung tft display ahs done me good for almost 10 years but theres no denying its getting older and the 1680x1050 16:10 resolution starts to get annoying then and when so Im thinking about getting a new one with 1920x1080 or 1920x1200 even (but theres only a few of them...).
Question: how do those fancy G-sync/Freesync Monitors do with Demos? In some of the higher end prods there is some framedropping even on my 1060 so I wonder if it really makes a difference? Since Im on nVidia i would need to get a G-Sync Monitor and those are quite expensive, sadly... Also HDR sounds interesting but it looks like its a thing for 4K screens which I dont really need or want to pay for...
My old trusty samsung tft display ahs done me good for almost 10 years but theres no denying its getting older and the 1680x1050 16:10 resolution starts to get annoying then and when so Im thinking about getting a new one with 1920x1080 or 1920x1200 even (but theres only a few of them...).
Question: how do those fancy G-sync/Freesync Monitors do with Demos? In some of the higher end prods there is some framedropping even on my 1060 so I wonder if it really makes a difference? Since Im on nVidia i would need to get a G-Sync Monitor and those are quite expensive, sadly... Also HDR sounds interesting but it looks like its a thing for 4K screens which I dont really need or want to pay for...
Possibly related: https://forums.anandtech.com/threads/truth-about-g-sync-its-a-adaptive-sync-with-an-altera-security-fpgas.2419361/. Original source is down unfortunately, so take this with a lot of salt.
archive.org to the rescue
Also, for any productive usage, 1920x1200 >> 1920x1080. And of course there are various larger resolutions than that that aren't HighDPI or 4K...
Also, for any productive usage, 1920x1200 >> 1920x1080. And of course there are various larger resolutions than that that aren't HighDPI or 4K...
I'm using Freesync monitor and that kind of techs are wondrous. As for demos you won't ever see tearing again, motion feels more smooth even on low framerates or when stuttering.
If you can afford it, get G-sync though - it has more features than Freesync and has less issues (like for example when there's extreme stuttering, say 120fps to 30fps drops several times a second, backlight of a Freesync monitor will flicker, and with current drivers that flicker remains until you disable Freesync or reboot). If it will be Freesync make sure it has LFC (Low Framerate Compensation).
I wholeheartedly recommend these techs, there's more into them than it seems (http://www.blurbusters.com).
If you can afford it, get G-sync though - it has more features than Freesync and has less issues (like for example when there's extreme stuttering, say 120fps to 30fps drops several times a second, backlight of a Freesync monitor will flicker, and with current drivers that flicker remains until you disable Freesync or reboot). If it will be Freesync make sure it has LFC (Low Framerate Compensation).
I wholeheartedly recommend these techs, there's more into them than it seems (http://www.blurbusters.com).
what rutra80 said.
Freesync suffers from ghosting when the gpu delivers a lower frame rate than the monitor's lowest supported refresh rate. G-Sync automatically doubles the frame rate of the input signal by duplicating frames, thereby ensuring that the monitor always gets frames within its supported refresh rate interval, and as such no ghosting happens.
Too bad about that high price, though...
Freesync suffers from ghosting when the gpu delivers a lower frame rate than the monitor's lowest supported refresh rate. G-Sync automatically doubles the frame rate of the input signal by duplicating frames, thereby ensuring that the monitor always gets frames within its supported refresh rate interval, and as such no ghosting happens.
Too bad about that high price, though...
I haven't seen a single fast 19x12 monitor, but higher res exist (with various issues, and those capped at 60hz aren't that useful)
Regarding the over expensive gsync monitors, "just" 144 hz brings you most of the way. The perceived difference in fluidness (for something running below 60fps) between 60 and 144 hz is imho much greater than from 144hz to the perfect adaptive sync. It has to be something quite artificial (like a scroller..) to really see the difference.
As for demos, some ask for a 60 hz screen mode (instead of "whatever"), which has to be avoided (I have simply removed <120hz from my monitors supported list), since it will cap the range at those 60hz, likely preventing LFC (frame doubling when below the lower limit of the monitor) etc. Dunno if nvidia always forces a higher rate or some measures has to be taken there as well.
Rutra80: sounds more like a problem with your monitor, no problem here (running a mg279 with a custom 48-120hz range). With LFC there is no need to have those very wide ranges (which are bound to cause backlight/overdrive adjustment problems) either. And now when borderless fullscreen is supported I think there is feature parity. (with both still lacking the ability to run adaptive in regular windowed mode).
Regarding the over expensive gsync monitors, "just" 144 hz brings you most of the way. The perceived difference in fluidness (for something running below 60fps) between 60 and 144 hz is imho much greater than from 144hz to the perfect adaptive sync. It has to be something quite artificial (like a scroller..) to really see the difference.
As for demos, some ask for a 60 hz screen mode (instead of "whatever"), which has to be avoided (I have simply removed <120hz from my monitors supported list), since it will cap the range at those 60hz, likely preventing LFC (frame doubling when below the lower limit of the monitor) etc. Dunno if nvidia always forces a higher rate or some measures has to be taken there as well.
Rutra80: sounds more like a problem with your monitor, no problem here (running a mg279 with a custom 48-120hz range). With LFC there is no need to have those very wide ranges (which are bound to cause backlight/overdrive adjustment problems) either. And now when borderless fullscreen is supported I think there is feature parity. (with both still lacking the ability to run adaptive in regular windowed mode).
I'd wait for consumer HDR displays to hit shelves, marketing craze aside there is no reason for HDR to be tied to 4K and it will provide a noticeable improvement in image quality at no performance penalty. While legacy sRGB content(e.g. demos) will not take advantage of it out of the box(some dll hacks or driver config could work around that though) its very easy to retrofit for developers, once widely available every game will support HDR displays out of the box.
I'd get a fast (refresh rate, black to white image, "gaming") monitor supporting >=100% of sRGB and calibrate it (or get a proper color profile for it), which will improve image quality in most of your current software. Though I agree that real HDR screens are cool, I suspect it will take 2-3 years for wider adoption and until prices drop. I'm not sure about the whole *sync thing, never used it.
