Acer Predator X34 OLED 34-inch WQHD 240 Hz gaming monitor review: Ultra-wide and ultra-fast

Acer delivers solid value to the 34-inch ultra-wide category with its Predator X34 OLED.

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Acer Predator X34 OLED
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(Image credit: © 3DTested)

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To compare the X34 OLED’s performance, I had to cover a large span of time to come up with five other monitors. They’re all 34-inch WQHD OLED ultra-wides with 240 Hz refresh rates, except for the AOC AG346UCD, which tops out at 175 Hz. The rest are Alienware’s AW2435DW, Corsair’s 34WQHD240-C, Gigabyte’s MO34WQC2, and Asus’ PG34WCDM.

Pixel Response and Input Lag

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Acer Predator X34 OLED
(Image credit: 3DTested)

The response test went as expected, with the 240 Hz screens all drawing a full white field in 4ms and the 175 Hz AOC taking 6ms. That one will show slight motion blur while the others will not. The X34 OLED has perfect motion resolution at rates above 180fps.

The input lag score is a standout that puts the X34 OLED up with the fastest panels I’ve ever tested. It’s the class leader here at just 16ms of total lag. It is more than worthy of professional competition where players’ reflexes are extremely fast. It is a weapon for sure.

Test Takeaway: The X34 OLED is the fastest 240 Hz ultra-wide OLED I’ve tested to date. It keeps up with other monitors running at higher rates and easily leads the 34-inch WQHD class. You can pay more for more speed, but then you’d give up the 21:9 curved format for a 16:9 flat panel.

Viewing Angles

Acer Predator X34 OLED

(Image credit: 3DTested)

The photos I took of the X34 OLED are as close to perfect as I’ve seen from any OLED. There is no visible change in color, brightness, or gamma at 45 degrees to the sides. The top view has a bit lighter gamma and a green shift, not unusual. In the horizontal plane, the X34 OLED’s image looks the same from all angles. It doesn’t get better than this.

Screen Uniformity

To learn how we measure screen uniformity, click here.

Acer Predator X34 OLED

(Image credit: 3DTested)

As a category, OLED monitors are the best performers in my uniformity test. I have yet to encounter a bad one. The X34 OLED has an impressively low 4.60% deviation, which is exceptional among monitors in general but about average for OLEDs. You won’t find any glow or hotspots here.

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Christian Eberle
Christian Eberle
Contributing Editor
3 Comments Comment from the forums
  • oofdragon
    Great colors AFTER calibration isn't a pro, it's a con. At this price it should come calibrated and ready to go
    Reply
  • thestryker
    Missing the 800R curve from the cons which even LG seems to be tacitly admitting was a mistake since the new UW panel announced has ditched it for 1500R.
    Reply
  • sauve.richard
    thestryker said:
    Missing the 800R curve from the cons which even LG seems to be tacitly admitting was a mistake since the new UW panel announced has ditched it for 1500R.
    I'm with you on that. I was really eyeing up an LG Ultragear 39 inch uw oled, it looked perfect, then I saw the 800R curve and it was an instant deal breaker for me.
    Reply