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LightBoost, G-SYNC, Turbo240: 120Hz Strobe Backlight LCDs / No Motion Blur! - Page 164

post #1631 of 2929
Thread Starter 
Quote:
Originally Posted by Aesthethc View Post

Woah really? How bad is "six times more motion blur" ? Like what can you compare it to so i can make more sense out of that statement o_o
I was thinking about getting a 1440p and overclock it to 120hz... but now that you mention that i may not switch...
Examples of motion blur:
go to www.testufo.com .... More motion blur at 30fps than 60fps (on LCD)
Next, see www.testufo.com/framerates-text -- Difficulty reading scrolling text;
Also, see www.testufo.com/eyetracking -- Demo of common motion blur caused by persistence.

Going to 120Hz typically halves motion blur. However, if you are able to enable a strobe backlight at one strobe per refresh, on fully refreshed LCD (between the LCD refreshes), you've got a strobed sequence of very sharp frames, and much shorter persistence, so you get less tracking motion blur. Look at the LightBoost testimonials as an example.

Of course, to really see the maximum benefits, you need a framerate matching the strobe rate -- e.g. GPU capable of 120fps @ 120Hz or 100fps @ 100Hz.
(or 85fps @ 85Hz / 144fps @ 144Hz when nVidia G-SYNC enables 85Hz and 144Hz strobing)
There are additional benefits of G-SYNC, including G-SYNC's other stutter-free variable refresh rate mode (which has more motion blur but eliminates stutters/tearing).
post #1632 of 2929
Quote:
Originally Posted by mdrejhon View Post

Examples of motion blur:
go to www.testufo.com .... More motion blur at 30fps than 60fps (on LCD)
Next, see www.testufo.com/framerates-text -- Difficulty reading scrolling text;
Also, see www.testufo.com/eyetracking -- Demo of common motion blur caused by persistence.

Going to 120Hz typically halves motion blur. However, if you are able to enable a strobe backlight at one strobe per refresh, on fully refreshed LCD (between the LCD refreshes), you've got a strobed sequence of very sharp frames, and much shorter persistence, so you get less tracking motion blur. Look at the LightBoost testimonials as an example.

Of course, to really see the maximum benefits, you need a framerate matching the strobe rate -- e.g. GPU capable of 120fps @ 120Hz or 100fps @ 100Hz.
(or 85fps @ 85Hz / 144fps @ 144Hz when nVidia G-SYNC enables 85Hz and 144Hz strobing)
There are additional benefits of G-SYNC, including G-SYNC's other stutter-free variable refresh rate mode (which has more motion blur but eliminates stutters/tearing).

I understand all of this. I am using Lightboost 120hz strobed right now on my VG278HE. I was just concerned about upgrading to 1440p and i heard you can OC some of the foreign models to 120hz. Why do those 1440p displays that OC to 120hz not as good as my current 1080p set up? Is it because they do not have that 3D strobe feature like my VG278HE?
post #1633 of 2929
Thread Starter 
Quote:
Originally Posted by Aesthethc View Post

Is it because they do not have that 3D strobe feature like my VG278HE?
Correct; none of the overclockable models have a strobe mode. The biggest reason to get the overclockables is to get IPS color and extra resolution at this time.

Your motion blur on the overclockable 120Hz monitors will be slightly worse than the motion blur of non-LightBoost 120Hz on your monitor. If going without a strobe mode bothers you, you may wish to wait for strobe-backlight monitors that use IPS or VA panels, if you like LightBoost a lot. Also, most people run 96Hz because above 96Hz on the overclockables, doesn't show significant noticeable benefit. They are great for graphics and software development but aren't as good FPS monitors as the current crop of LightBoost monitors (and upcoming G-SYNC monitors, which includes the LightBoost sequel superior to LightBoost).
Edited by mdrejhon - 10/23/13 at 7:30am
post #1634 of 2929
Quote:
Originally Posted by CallsignVega View Post

Please don't get confused by what he is saying. Currently, you cannot have G-Sync and Lightboost active at the same time. There is no way to do a variable strobe rate. NVIDIA said they are working on it.

Ah, crap, sorry. frown.gif I meant to say, "G-SYNC-enabled monitors are capable of Lightboost 2.0". You're completely right: you can't have both (yet)! biggrin.gif
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post #1635 of 2929
Quote:
Originally Posted by mdrejhon View Post

P.S. G-SYNC monitors support strobing at 85Hz and 144Hz!
The G-SYNC optional superior sequel to LightBoost (fixed-rate strobe mode) actually supports strobing at 85Hz and at 144Hz (at least), in addition to existing LightBoost modes (100Hz and 120Hz). You heard from me, first!

"You heard from me, first!" thumb.gif

So if I understand this right. With G-SYNC you'll be able to either choose: 1) no tearing etc or 2) the superior sequel to 2D LB?
The prequisites would be, a G-SYNC monitor and a kepler GPU?
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post #1636 of 2929
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Quote:
Originally Posted by ARIKOmagic View Post

"You heard from me, first!" thumb.gif
So if I understand this right. With G-SYNC you'll be able to either choose: 1) no tearing etc or 2) the superior sequel to 2D LB?
The prequisites would be, a G-SYNC monitor and a kepler GPU?
Essentially, yes.
post #1637 of 2929
I am confused. G-SYNC is indeed better than Lightboost technology? Do you need to do a Lightboost hack in order to enable it or is it just plug and play?
post #1638 of 2929
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Quote:
Originally Posted by SightUp View Post

I am confused. G-SYNC is indeed better than Lightboost technology? Do you need to do a Lightboost hack in order to enable it or is it just plug and play?
All G-SYNC monitors include a mode that is a superior sequel to LightBoost.
There are multiple modes included in G-SYNC, that you can switch between:

1. G-SYNC Mode -- variable refresh rate with less stutters

2. Improved LightBoost mode -- fixed refresh rate but less blur
post #1639 of 2929
Can I add this to the 278HE version monitor and will lightboost 2.0 be there as well?
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post #1640 of 2929
The initial DIY kit is only available for the VG248QE. Nobody knows which monitors will be moddable in the same way in the future. And I wouldn't start calling this low-persistence mode 'LightBoost 2.0' as it may cause confusion. Nvidia is unlikely to call it that seeing as it's not designed with 3D technology in mind. Perhaps G-Boost? Who knows. tongue.gif
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