motion blur question

[sunhunter]

Hello, i have some questions about motion blur:

1) all gsync monitors with ulmb and benq with dyac will be better then freesyncs? (in term of blur)
2) all freesync monitors have ~same quality of motion blur?
if not which freesync monitor will have best motion blur?

thanks for help.

[Chief Blur Buster]

1) all gsync monitors with ulmb and benq with dyac will be better then freesyncs? (in term of blur)

Depends. GSYNC more reliably includes blur reduction (ULMB).
It's just less common to be included with FreeSync monitors.
But several models of FreeSync monitors have a manufacturer-specific blur reduction feature.

See Motion Blur Reduction FAQ

There are many brand names of strobe-backlight-based blur reduction systems other than ULMB.

• "Motion Blur Reduction" (several vendors)
• "LightBoost" (by NVIDIA)
• "ULMB" – Ultra Low Motion Blur (by NVIDIA)
• "DyAc" – Dynamic Accuracy (by BenQ ZOWIE)
• "ELMB" – Extreme Low Motion Blur (by ASUS)
• "MotionFlow Impulse" (by Sony)
• "MOTION240" (by LG)
• Etc.

To find out which models of FreeSync monitors includes blur reduction, see List of FreeSync Monitors under the "Blur Reduction" column.

2) all freesync monitors have ~same quality of motion blur?
if not which freesync monitor will have best motion blur?

They will vary significantly.

Among FreeSync monitors, these seem to have best blur reduction available in FreeSync monitors:
- Strobe refresh rate wise: LG 27GK750F-B
- Strobe color quality wise: Samsung CHG70 (the quantum dot Samsung models).

Samsung does top-notch tuning of blur reduction (and it has FreeSync 2) with better color quality and good out-of-box strobe (nearly no strobe crosstalk) -- while LG has the highest-refresh-rate strobing ability in an officially-FreeSync-supported monitor (colors are not as good because it's a TN panel, but it's an eSports-league 240Hz refresh rate with fast pixel response).

As usual, with almost every VRR monitor, you can only choose strobe mode or VRR mode.
- During strobe mode, you want framerate = refreshrate = stroberate, for the zero-motion-blur CRT clarity effect.
- During VRR mode, guaranteed minimum motion blur is directly proportional to framerate (1ms pixel visibility time = 1 pixel motion blur during 1000 pixels/sec, same as Blur Busters Law) for flickerfree sample-and-hold mode.

In other words -- motion blur wise -- when running in VRR mode instead of blur reduction mode -- So 60fps on a VRR monitor (any Hz) looks like VSYNC ON 60fps@60Hz on a good 60Hz LCD, but without the input lag of VSYNC ON. Or choose any random framerate -- pick any random number -- 79.3fps on a VRR monitor (any Hz where 79.3fps is within VRR range) looks like perfect VSYNC ON [email protected].

The good news is you can switch between modes for different games, to play with a preference to VRR or with a preference to blur-elimination.