AOC Agon Pro AG346UCD Ultra-wide OLED gaming monitor review: Maximum color and solid value

The AOC Agon Pro is a 34-inch WQHD 21:9 ultra-wide QD-OLED display with 175 Hz, adaptive sync, HDR, and wide gamut color.

AOC Agon Pro AG346UCD
(Image: © Tom's Hardware)

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Uncalibrated – Maximum Backlight Level

The AG346UCD has no real weaknesses except for brightness. And how that’s perceived is up to the individual user. Though it peaks at 236 nits, you still get the infinite blacks all OLEDs are known for. Contrast is infinite,l and don’t forget that enormous color gamut. Since there’s no option for variable brightness, the AG346UCD operates like all the other screens would if their variable brightness were turned off. Measuring a full field versus a 25% window made no difference.

After Calibration to 200 nits

Adjusting the brightness to a peak of 200 nits does not affect black levels or contrast. If you set all the monitors for constant brightness, they would look the same except for their color saturation, which we’ll discuss on the next page. The ANSI checkerboard, which measures intra-image contrast, also looks the same on all six panels.

Test Takeaway: With the AG346UCD’s brightness remaining constant for all content, its peak is at 236 nits which is less bright than a monitor with variable brightness. In practice, this manifests as less impactful highlights. Variable brightness gives a panel more pop and verve. The AG346UCD has great color though and that may appeal more to some users than peak luminance.

MORE: Best Gaming Monitors

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Christian Eberle
Contributing Editor

Christian Eberle is a Contributing Editor for Tom's Hardware US. He's a veteran reviewer of A/V equipment, specializing in monitors. Christian began his obsession with tech when he built his first PC in 1991, a 286 running DOS 3.0 at a blazing 12MHz. In 2006, he undertook training from the Imaging Science Foundation in video calibration and testing and thus started a passion for precise imaging that persists to this day. He is also a professional musician with a degree from the New England Conservatory as a classical bassoonist which he used to good effect as a performer with the West Point Army Band from 1987 to 2013. He enjoys watching movies and listening to high-end audio in his custom-built home theater and can be seen riding trails near his home on a race-ready ICE VTX recumbent trike. Christian enjoys the endless summer in Florida where he lives with his wife and Chihuahua and plays with orchestras around the state.

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  • Deflott
    I bought this monitor for 590€ and im super happy with it, only thing I'm not used to is when i play game like kcd without brightness setting and there is night I can't see anything :/
    Reply
  • dave.rara66
    I'm sure it's a nice monitor, but for the same price you can buy the Dell Alienware AW3423DWF. While it's capped at 165Hz (hardly a noticeable decrease) it has great HDR performance and a better warranty.

    Not better as in longer, but better in that they will never make you send in a monitor for repair. They instead ship you a new replacement panel (no deposit required) and you just drop the defective one in the same box and send it back - all prepaid. Best warranty ever (3 years).
    Reply
  • Deflott
    dave.rara66 said:
    I'm sure it's a nice monitor, but for the same price you can buy the Dell Alienware AW3423DWF. While it's capped at 165Hz (hardly a noticeable decrease) it has great HDR performance and a better warranty.

    Not better as in longer, but better in that they will never make you send in a monitor for repair. They instead ship you a new replacement panel (no deposit required) and you just drop the defective one in the same box and send it back - all prepaid. Best warranty ever (3 years).
    I bought agon for 590€ while Alienware one you sent cheapest i could find for 786€
    Reply
  • dave.rara66
    Deflott said:
    I bought agon for 590€ while Alienware one you sent cheapest i could find for 786€
    I should have clarified that the prices I'm seeing are in the USA
    Reply