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My database contains mainly 240 Hz OLEDs. To compare the AG346UCD’s performance to at least one other 175 Hz model, I had to activate the time machine for the numbers from my review of the Samsung OLED G8 from 2023. The remaining screens are Gigabyte’s MO34WQC2, Corsair’s 34WQHD240-C, Acer’s X34 and AOC’s AG456UCZD.
Pixel Response and Input Lag
It’s important to remember that OLED gaming monitors make more of a given refresh rate than an LCD. In addition, the differences between 175 and 240 Hz are small enough that most players won’t see a difference in smoothness or control response. The numbers above demonstrate this. Though the AG346UCD takes 6ms rather than 4ms to draw a full white field, the difference in practice is minute. I could see a tiny hint of blur in test patterns but during actual gameplay, there was no difference.
I also noted no appreciable difference in the total control lag times. The Samsung is an outlier, but it is a bit older than the others. Clearly, paying more for 240 Hz won’t get you a lot more speed. The AG346UCD is on par with the faster screens.
Test Takeaway: While it’s easy to ding the AG346UCD for being *only* 175 Hz, the test results show that doesn’t matter. My visual observation was of very slight blur in moving test patterns but nothing that would affect the gaming feel or experience. You can save a bit of money buying the AG346UCD and get the same performance offered by most 240 Hz screens.
Viewing Angles
I’ve observed slight red tints in some QD-OLEDs at 45 degrees off-center, but the AG346UCD doesn’t have this trait. The side view is identical to the on-center photo in color and luminance. Gamma is also unaffected. The top view is a tad red with a reduced gamma. This is excellent performance.
Screen Uniformity
To learn how we measure screen uniformity, click here.
Also excellent is the AG346UCD’s screen uniformity which is among the best I’ve measured from any monitor. You won’t see any bleed, glow, or hotspots here. It truly doesn’t get better than this.
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