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NVIDIA Introduces G-SYNC Technology

Unknown-One said:
Yes, I know it will require a new TV. I'm ok with that for such a gigantic improvement in media watching.
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And unlike the 3DTV fad, a migration to variable refresh rate would actually be useful. Some people are getting way too upset about this (granted a lot of em AMD fankids) but all it is is the leading edge of a shift toward what will hopefully be far more widespread in the coming years.
 
This does need to be an open standard, with this even Intel's integrated solutions would rock. I have to look at the white papers I'm not sure why this is a Kepler only capability.
 
Unknown-One said:
Yes, I know it will require a new TV. I'm ok with that for such a gigantic improvement in media watching.
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I was responding to someone who mentioned upgrading to Maxwell purely to get this but no mention on the monitor.
 
uh oh

Q: Does NVIDIA G-SYNC work for all games?

A: NVIDIA G-SYNC works with all games. However, we have found some games that do not behave well and for those games we recommend that users take advantage of our control panel’s ability to disable G-SYNC per game. Games that NVIDIA discovers that have trouble with G-SYNC will be disabled by default in our driver.

http://www.geforce.com/hardware/technology/g-sync/faq
 
jwcalla said:
uh oh

Q: Does NVIDIA G-SYNC work for all games?

A: NVIDIA G-SYNC works with all games. However, we have found some games that do not behave well and for those games we recommend that users take advantage of our control panel’s ability to disable G-SYNC per game. Games that NVIDIA discovers that have trouble with G-SYNC will be disabled by default in our driver.
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I am guessing what they mean by this is games - mostly bad console ports - that are limited to 30 FPS, because G-Sync just can't work properly under 30 FPS.
 
evilsofa said:
Obviously, if the game is hard-coded with a 30 FPS limit, G-Sync isn't going to work.
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You can kick in frame-doubling below a certain point, though.

Below 30 FPS they could simply display each frame twice. Problem solved, the monitor never has to refresh slower than 30 Hz.
 
Unknown-One said:
You're kidding, right? There's a huge range of frame-rates that video comes in, and not all of them are divisible by one another...

Common formats include: 24p, 25p, 30p, 48p, 50i, 60i, 50p, 60p.
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It is trivia to support that. All you need is 100Hz and 120Hz and you have everything covered.

No need for variable frame rate schemes to support fixed frame rates.
 
Pocatello said:
I was thinking of doing just that. (120 hz lightboost)

Can you more clearly state your point? I feel like I am missing something.
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Some people are claiming that Gsync will reduce demand for high refresh rate monitors or GPUs that can drive games at high refresh rates. IMO it will do no such thing. The first piece of evidence is that many people are perfectly capable of achieving 60 fps vsync and it is still not good enough for them, that means that simply having smooth FPS is not the only factor.

It also does not address in anyway the smearing you get with non light boosted monitors.

In fact gsync may do the opposite for many people it will encourage some people to spend more money to get better GPUs because having say 90 FPS without tearing will be better than 60 fps without tearing. Where as before some people argued that the cost to get them up to 120fps was not feasible or worth a possible trade off in screen tearing if they could not achieve that.

Gsync also cannot address any advantage you would get from seeing frames faster. The difference between what you see and how fast you see movement changing on a screen is still a difference of up to 20 ms between 30 fps and 120 fps.

Gsync has the possibility if it works as well as stated of making gaming better looking for most people but fundamentally it has to have some added input lag over turning vsync and all buffering off. It should make things better than before but will not reduce the demand for high end fast monitors or GPUs at all IMO.

If you are looking at buying a 120 hz light boost monitor now, you might want to wait for a gsync version. But in no way is gsync going to be better at 60hz than it is at 120hz.
 
Snowdog said:
It is trivia to support that. All you need is 100Hz and 120Hz and you have everything covered.

No need for variable frame rate schemes to support fixed frame rates.
Click to expand...
Nope...

100Hz only covers 25p, 50i, and 50p.
120Hz only covers 24p, 30p, 60i, and 60p.

That leaves 48p out in the cold, still. You need 96 or 144 Hz to support 48p.

And even if you support all of the above, that leaves you doing a total display mode reset every time you play a movie in a different frame-rate. Whole screen has to go black and re-sync. G-Sync gets around that issue by allowing the refresh rate to be 100% dynamic.

G-Sync also assures that the display doesn't do its own internal framerate conversion. It's extremely difficult to find displays that DON'T do this today.
 
Snowdog said:
It is trivia to support that. All you need is 100Hz and 120Hz and you have everything covered.

No need for variable frame rate schemes to support fixed frame rates.
Click to expand...
Also... you realize you just proposed using a dynamic refresh rate (dynamically adjusting between 100 and 120 Hz based on the framerate of the current content) to resolve an issue that you claim doesn't require a dynamic refresh rate, right? :rolleyes:

G-Sync is just infinitely more granular, able to handle any framerate, at any moment, with no pull down, and no mode resets. I can't understand how a media center enthusiast would NOT want this...
 
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