Watchdog wrote: ↑22 Feb 2026, 15:57
Is XL2566X+ better than XG248QSG in terms of motion clarity considering DyAc 2/ELMB2 are enabled on each monitor?
I am using XL2411K at the moment. I am willing to sacrifice a little bit of motion clarity for more clearer image because I tend to lose the crosshair at my targets when tracking them. Like my eyes lose track of them so it's harder for me to track them for a longer period of time. It's also a bit harder for me to spot enemies from far away. I have my monitor a little bit away from me as I am comfortable with it but if I move it a little closer, I sacrifice my reflexes/aim.
You're not going to see a major improvement over a XL2411K with DyAc enabled (tuned with Blurbusters utility for the best possible MPRT value)
I can give you the exact values of the
ASUS XG248QSG settings, namely:
It has 5 distinct “Clarity Level” settings, each of which targets a specific
(fixed) duty cycle:
Lvl=1 → 72%; Lvl=2 → 53%; Lvl=3 → 42; Lvl=4 → 27; Lvl=5 → 20%
Source of data @ 03:20
What does this mean in practice?
Let's assume you can run FPS=Hz constantly (meaning 600FPS @ 600Hz; t= 1,6667 ms ), you're looking at:
1.2 ms 'on' period (“833 Hz effective motion clarity”) @ 424 cd/m²
0.88333 ms (“1132,075 Hz effective motion clarity”) @ 409 cd/m²
0.7 ms (“1428,571 Hz effective motion clarity”) @ 384 cd/m²
0.45 ms (“2222,22 Hz effective motion clarity”) @ 335 cd/m²
0.333ms (“3 000,003 Hz effective motion clarity”) @ 290 cd/m²
This is how the performance of the XG248QSG would be.
The display works on these refresh rates (I assume a custom res would also work, but I'll stick to review data & manual):
100, 120, 240, 360, 500, 600, 610 Hz
The lower the refresh rate, the lower the total clarity benefits.
You
must ensure FRate>RRate to achieve the least amount of "phase shift"-like aliasing, which occurs when FRate<RRate
I don't know whether the pulse behavior changes depending on the refresh rate, as reviewers aren't willing to test displays to this type of depth.
Now, for the XL2586X+:
You have 2 distinct fixed duty cycle settings: DyAc High & DyAc Premium (the better clarity setting)
My assumption (I have no data for this specific model) is that they target a PW of ~40%, which would bring it to a lower “effective motion clarity” than the ASUS model above.
Note that this value mentioned above is likely extremely higher than what BenQ/Zowie are using in practice
The only public source I've come across is this one, which claims a “1836–3109Hz effective motion clarity
This would mean that DyAc=Premium targets a pulse width of 19–32% (which would bring it on-par or slightly worse than the ASUS, depending on exact values, in terms of effective motion clarity it targets)
The BenQ models (86X & 86X+) are the only models on the market to sport a QD-based backlight, which means no red fringing will occur.
The ASUS is a KSF/PFS based model.
The only other model I've seen which eclipse both completely is the PG27AQN with its ULMB2 mode, which is able to do ~3% pulse width at ~20cd/m²...
Sadly KSF fringing is present & I don't know what effective motion clarity you can achieve @ ~100cd/m².
To be specific, CRTs have “+4000 Hz effective refresh rate” across the usual 60–200Hz that they used to come in.
That's the benchmark of every strobing implementation IMO.
I don't know how the XL2411K behaves, as you have the option to use the Blurbusters utility and you might like this far more than red fringing of the ASUS or the limitations of aforementioned models.
I'm very certain that you aren't going to be achieving that clarity I've mentioned above, as you'd need an absurdly short pulse width to be able to compete.
Not only that, since brightness is inversely proportional (you're 'hiding' part of the transitions when strobing), you're going to be losing a ton of brightness.
A 10% duty cycle on your XL2411K (@ 144Hz) would get you 0.833333 ms MPRT, where you'd have much lower brightness capabilities than the ASUS above. Let's assume the XL2411K is voltage-boosting to ~1000cd/m².
You're looking at ~100cd/m² at 10% duty cycle.
5% duty would get you to 0,41666 ms MPRT, but 50 cd/m².
I assume you've understood the constraints & how this topic functions.
Yes, there are models which target a lower effective motion clarity than the BenQ & ASUS models above at a lower native refresh rate (e.g.: 360Hz with a 0,125ms MPRT and relatively usable brightness)