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G-SYNC - New nVidia monitor tech (continuously variable refresh; no tearing/stutter)
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SolarPowered
Member
The more I read, the more I want to buy a G-sync capable monitor. Next gen belongs to the PC. Now we just need a way to sneak this into the Oculus Rift and we're set.
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Takamura-San
Member
We didn't listen....
Trile buffering is a mitigation strategy for the issues introduced by fixed refresh rate, and one which only addresses some of them.
This solves the problem at its core.
props, totally called it.
8bitForLife
Member
My big question is will this help retro consoles like pc-engine saturn and the nintendo's?
CypherSignal
Member
3 extra frames of lag: an extra 50-100ms, easily.
Hmm...not sure I'm ready to let go of my 580 yet. Hopefully reviewers will A/B 120hz/LightBoost (in 2D mode) vs G-Sync so I can get a real world picture of how much of a difference it would make.
SatelliteOfLove
Member
Eh-yup, my old small monitor may have met its replacement next year, price permitting.
The amount of brainwashing done by the industry already has most people convinced LCD is the second coming (that's been coming for 15 years), so why change?dark10x said:
Strictly speaking I still don't care for variable framerates, no matter how they're displayed, but this at least allows to control the variance better. I wonder what chances are to see this in handheld devices someday, as outside of the dying dedicated handhelds, they universally suffer from unstable shit framerate, and you don't have the PC option of upgrading them away.Durante said:
In the demo NVIDIA gave us a couple weeks ago my eyes felt like they were "seeing" the smoothness of 60hz all the way down to about 35-40fps. It was at that point I thought the NVIDIA guys were lying and made them turn on an out-of-demo framecounter like FRAPs. It was at precisely that point I went and grabbed every person at Respawn that I could find. So many jaws on the floor that day, lol.
These are 144hz displays as far as I know.
Teknopathetic
Member
"I'm a little confused on how it can go past the monitors 60hz, I thought the hardware of the monitor itself cannot handle going past that? Is this removing a lock that monitors have and most can go past 60 to the said 110 if my gpu hits 110 fps?"
The monitors they're talking about are not 60hz monitors, but 120/144hz monitors.
The monitors they're talking about are not 60hz monitors, but 120/144hz monitors.
Don't 120hz monitors already have "no tearing" with v-sync off though?
Almost definitely that. The thing is you can now go nuts with AA/downsampling or other performance crippling features because having a variable/inconsistent frame rate no longer matters.
Nope - why should they?
ashecitism
Member
@ID_AA_Carmack What if the GPU frames are faster than the monitor refresh?
John Carmack ‏@ID_AA_Carmack 1h
@VegetableBread the monitor goes up to 144hz. Presumably you would want to stall then, but tear might be a (bad) option.
No idea, but I swear I read something like that from a user who owned one. Probably explained it wrong.
It's less perceptible, but it's still a static refresh rate.
Sounds just as amazing as I expected. I want one now. But 1440p...
Dictator93
Member
namely extreme differences in frame latency.
aka, from 22ms to 50 all of a sudden
Oh my.
Legendary_Red
Banned
So let me get this straight, if my games are locked at a solid 60 FPS, I would be seeing little to change with G-Sync technology, correct?
Screw 1440/1600p. After playing around with a 4K monitor...
Nope if the games goes beyond 120fps, for example Castlevania LOS on PC goes beyond 200 and you can see tearing on my 120Hz panel.
"Will use d3doverrider to force triple buffering instead of complaining about mouse lag in every PC game thread ever"
Time to change your tag
If you aren't using any kind of vsync you are getting tearing, period. Over the refresh rate, under, doesn't matter.
If they are currently locked with vsync you'll be able to disable vsync and get noticeably less lag.
If they aren't currently locked with vsync you are currently getting screen tearing and with gsync you will no longer be getting screen tearing.
If they are currently locked with vsync you'll be able to disable vsync and get noticeably less lag.
If they aren't currently locked with vsync you are currently getting screen tearing and with gsync you will no longer be getting screen tearing.
Lostconfused
Member
No you should still see a significant reduction in motion blur as Nvidia seems to be including Lightboost as part of G-Sync.
DirgeExtinction
Member
This sounds amazing. Sucks I bought my first monitor earlier this year, though. 
It would be cool if this technology was available in the way Samsung upgrades their HDTVs(Samsung Evolution Kit). It'd be awesome if TVs and monitors could be upgraded by simply buying an add-on(price being reasonable).
It would be cool if this technology was available in the way Samsung upgrades their HDTVs(Samsung Evolution Kit). It'd be awesome if TVs and monitors could be upgraded by simply buying an add-on(price being reasonable).
Meccanical
Member
Which means if you have G-Sync, there's no reason to ever turn v-sync on right?
Yes. Because v-sync means holding back your game only to draw a frame when the display needs one. If you miss your chance to give a new frame, you wait for the next opportunity. With this, you make the frame, and when it's done, you show it.
Actually, higher hz monitors would be less affected from v-sync, and this tech would have been real beneficial with 60hz monitors. For cases when the frame rate drops to 50fps, when v-sync is on, certain frames would need to be shown 2*1/60 times -> 1/30 of a second instead of 1/60, adding 16ms to the still frame, if the game runs on 50fps on a 120hz monitor, some frames would be shown 1/60th, some frames would be shown 1/40th of a time, adding ~8ms to a frame. For 144 hz, it would add about 7ms to wait for refresh..
The higher you go, the less you'd wait for the v-sync, so a 1000hz monitor wouldn't even need this tech
Anyone? I've searched the thread but didn't find an explanation.
Meccanical
Member
This is why patience pays off.
(Let's hope it pays off for another two more years since it's not like I can build my comp yet anyway :V)
For everyone coming to the thread, here's the high-level breakdown of what G-SYNC does:
Mod it with the DIY kit, or have someone do it for you. Takes 20-30 minutes.
- No tearing
- No VSync input lag
- No VSync stutter
- Improved input latency compared to VSync Off mode on 'standard' monitors
- Clearer, smoother movement (tech demo shows readable text on a moving object)
- DIY modkit available before the end of the year for the ASUS VG248QE (~$175, aiming to reduce price to ~$130)
- Modded ASUS VG248QE versions available from partners before the end of the year
- Off-the-shelf models available from retailers next year. ASUS G-SYNC VG248QE MSRP is $399.
- Will be in monitors of every resolution and size, right up to 3840x2160 - selection determined by manufacturers like ASUS, BenQ, Phillips and Viewsonic
- Requires GTX 650 Ti Boost or better
Mod it with the DIY kit, or have someone do it for you. Takes 20-30 minutes.
charlequin
Banned
Yes, of course a big company chooses to make proprietary a technology which they independently researched and coordinated in order to actually profit on all the work they put into it. That shouldn't surprise or really even bother anybody.
If this technology plays out as well as expected, it will become a standard eventually, but a proprietary API paired with select partners is the way for someone to actually make the effort of developing this technology commercially viable.
Yeah the implications of this technology are pretty significant.
I can't believe you guys are gonna make me buy another monitor already. ;_;
Yes, of course a big company chooses to make proprietary a technology which they independently researched and coordinated in order to actually profit on all the work they put into it. That shouldn't surprise or really even bother anybody.
If this technology plays out as well as expected, it will become a standard eventually, but a proprietary API paired with select partners is the way for someone to actually make the effort of developing this technology commercially viable.
Yeah the implications of this technology are pretty significant.
I can't believe you guys are gonna make me buy another monitor already. ;_;
Could AMD license it, if it becomes widespread?
TouchMyBox
Member
Are there going to be 60hz g-sync monitors? Or will the g-sync brand guarantee at least a sexy 120hz?