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I didn’t quite have enough 34-inch OLEDs to fill up the comparison group, so there are two Mini LED models in the mix with the PG34WCDM, ViewSonic’s XG341C-2K and Philips’ 34M2C7600. The remaining screens are Philips’ 34M2C8600, Samsung’s Odyssey OLED G8, and Alienware’s AW3423DWF.
Pixel Response and Input Lag
Click here to read up on our pixel response and input lag testing procedures.
With its 240 Hz refresh rate, the PG34WCDM has a significant advantage over the others. It draws a full white field pattern in 4ms. However, it should be noted that all the OLEDs are smoother than any LCD short of 360 Hz. OLED always gets more from a given frame rate than a comparable LCD. So, you won’t be sacrificing much going for the 175 Hz Samsung, for instance.
The more significant separator between OLEDs is input lag. There, every frame per second matters. The PG34WCDM isn’t the quickest 240 Hz OLED I’ve tested. That honor belongs to Alienware’s AW2725DF, which hit 19ms in my test. Whether that 4ms makes a difference depends on your gaming skill level.
Test Takeaway: I have yet to test an OLED that wasn’t super smooth. Even a 144 Hz model is nearly blur-free. It’s inherent in the technology, and the PG34WCDM is a prime example of the category. It’s as fast as any other premium OLED monitor and a pleasure to game on.
Viewing Angles
In my experience, OLED viewing angles have been universally excellent, and the PG34WCDM is no different. There is no appreciable color shift in the photo, but there is a tiny reduction in light output, around 5%. Gamma is consistent at 45 degrees off center, whether you look vertically or horizontally.
Screen Uniformity
To learn how we measure screen uniformity, click here.
We see consistently good results from both OLED and Mini LED screens. The PG34WCDM is one of the better monitors I’ve tested, with just a 3.83% deviation from the center zone. The LCDs do well, too, which isn’t surprising given their premium price tags.
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