ULMB vs nVidia Gsync
Is ULMB (Ultra-low motion blur) better or worse than Gsync for overall graphical fidelity in games?

Bonus: What about ULMB @120hz vs Gsync at 120hz and Gsync at 165hz?

Thanks in advance!
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Showing 1-9 of 9 comments
_I_ Mar 13, 2021 @ 12:15am 
different

motion blur reduction, has the display turn off the backlight while pixels are changing colors
(will still show partial frame combos with tear lines when vsync is disabled)
(same as flicker free displays)

gsync/freesync lower the refresh rate to the gpus draw rate

side note
eyes can only notice a non moving light blinking at abut 30hz (any faster appears to be changing intensity, based on on/off time %)
but when the blinking light is moving it can see much higher rates

cant easily combo blur reduction with gsync/freesync since it will change the on/off time since it will change the eyes perceived brightness)
lower fps with gsync/freesync would change frames less often, which would mean longer on times displaying the frame and he scene would appear brighter
Last edited by _I_; Mar 13, 2021 @ 12:26am
SoldierScar Mar 13, 2021 @ 1:09am 
Just get an Asus panel with ELMB Sync and you get both at the same time.
Last edited by SoldierScar; Mar 13, 2021 @ 1:09am
Pocahawtness Mar 13, 2021 @ 1:20am 
They are both very different, as Angles said, and they are incompatible.

If you can consistently hit the maximum refresh rate of your monitor, then ULMB is a good option. If your refresh rate is all over the place then G-Sync is a better option.

Personally I prefer G-Sync because I can't always hit 144Hz ( the speed of my monitor ).


SoldierScar Mar 13, 2021 @ 1:26am 
Originally posted by 「C❤️A」 Pocahawtness:
They are both very different, as Angles said, and they are incompatible.

If you can consistently hit the maximum refresh rate of your monitor, then ULMB is a good option. If your refresh rate is all over the place then G-Sync is a better option.

Personally I prefer G-Sync because I can't always hit 144Hz ( the speed of my monitor ).
Again, Asus monitors with ELMB sync support both black frame insertion with freesync/gsync enabled at the same time, i have it and can confirm that it works really great, but it looks best above 100hz.
Autumn_ Mar 13, 2021 @ 2:12am 
Originally posted by Kalimba Chozo:
Is ULMB (Ultra-low motion blur) better or worse than Gsync for overall graphical fidelity in games?

Bonus: What about ULMB @120hz vs Gsync at 120hz and Gsync at 165hz?

Thanks in advance!
Speaking only from personal experience; ULMB is kind of bad at 120hz, you CAN see it flickering, and it DOES strain your eyes. It does improve my performance in games, I tested a few dozen times, and ULMB always resulted in my aim being better over G-sync. But considering how much it strains my eyes, it's more of a gimmick at this point. I don't reget buying a monitor with it though, even if I did mainly buy the monitor for it's resolution, refresh rate, and G-sync.

G-sync is generally better; less eye strain (even at lower, ~70-90, FPS), higher refreshrate (image looks smoother), should mostly eliminate tearing and have low latency (compared to uncapped and V-sync.)

Originally posted by 「C❤️A」 Pocahawtness:
They are both very different, as Angles said, and they are incompatible.

If you can consistently hit the maximum refresh rate of your monitor, then ULMB is a good option. If your refresh rate is all over the place then G-Sync is a better option.

Personally I prefer G-Sync because I can't always hit 144Hz ( the speed of my monitor ).
Even with G-sync, you should cap your FPS to a value that doesn't fluctuate, if you don't, you are using it wrong.
Because you could see tearing, have higher latency for no reason, have microstuttering, etc.

Originally posted by 「C❤️A」 Pocahawtness:
They are both very different, as Angles said, and they are incompatible.

If you can consistently hit the maximum refresh rate of your monitor, then ULMB is a good option. If your refresh rate is all over the place then G-Sync is a better option.

Personally I prefer G-Sync because I can't always hit 144Hz ( the speed of my monitor ).
Again, Asus monitors with ELMB sync support both black frame insertion with freesync/gsync enabled at the same time, i have it and can confirm that it works really great, but it looks best above 100hz.
I assume they're asking because their monitor (the one they currently own) has these features, and are trying to decide which to use.

And, personally, I feel ULMB needs to be ~200hz+ to work decently without seeing any flicker.
At 120hz, it does look a bit flickery, and then after some time, it does become more noticeable, and then strains your (my) eyes pretty badly, raising the speed of frames (so there is less blank time) should in theory fix all of the issues. But I have no experience with it being that high, so I don't know if it'll be any good.
Regardless, I wouldn't use ULMB at 120hz, I've tried it, I didn't like it, even if my results in games were technically better.
SoldierScar Mar 13, 2021 @ 2:52am 
The only time i've seen flicker is around 60 fps..at 100+ it works great, but there is a different artifact like double image when moving mouse, but from the reviews that seems to be an issue with most monitors with low motion blur feature..it's best to just buy a good quality panel with fast response time like nanoips panels and forget bfi.
Thanks a ton ya'll. I think I'm just gonna stick with G-sync using blurbuster's optimal settings. Seems like that's the my best bet.
hdirfelix Dec 1, 2023 @ 3:11pm 
Originally posted by Kalimba Chozo:
Thanks a ton ya'll. I think I'm just gonna stick with G-sync using blurbuster's optimal settings. Seems like that's the my best bet.
Show your configuration
Originally posted by SoldierScar:
Again, Asus monitors with ELMB sync support both black frame insertion with freesync/gsync enabled at the same time, i have it and can confirm that it works really great, but it looks best above 100hz.
It doesn't matter if the monitor supports ULMB or black frame insertion or not. Both of those things may be undesirable effects that people don't want depending on their personal tastes. It's not a good idea to try and force what you like on to other people that may not like the same thing as you. Both of those options have negatives and drawbacks and not everyone is okay with the negative aspects of using those modes.
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Date Posted: Mar 13, 2021 @ 12:06am
Posts: 9