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Acer Predator XB323U review

This 270Hz monitor is fantastic for competitive gaming, with a 2,560 x 1,440 resolution and massive 32" screen size, but it's also a bit pricey.

Acer Predator XB323U gaming monitor

Our Verdict

The Acer Predator XB323U is a fantastic high-end gaming monitor for those seeking a fast refresh rate and large screen size while sticking to a 1440p resolution. You don't have to mess around with scaling games up to a 4k resolution and it delivers excellent image quality with a decently fast response time. Its excellence comes at a high price, though.

Reasons to buy
  • Fantastic gaming performance
  • Decent overall image quality
  • Useful feature set
Reasons to avoid
  • No USB Type-C input
  • Lackluster HDR
  • No blur reduction mode
  • Expensive

With its 270Hz refresh rate and massive 32″ panel, the Acer Predator XB323U is potentially ideal for those seeking a gaming monitor with blistering performance without compromising on screen size. You can get similar specs on 27in panels for a lot less but the extra screen size bumps up the price of this gaming monitor.

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The raw performance and image quality on offer here means this Acer display is easily one of the best gaming monitors for its 32-inch size. But, it’s not without some issues so read on to find out just where this display dazzles and disappoints.


The Acer Predator XB323U specs list is:

Screen size 32″
Resolution 2,560 x 1,440
Panel technology IPS
Maximum refresh rate 270Hz
Stated response time 1ms
Max brightness 400cd/m² SDR
Backlight zones 1
Stated contrast ratio 1,000:1
Adaptive sync FreeSync Premium, G-Sync compatible
Display inputs 1 x DisplayPort 1.4, 2 x HDMI 2
Audio 2 x 2W speakers, Headphone out
Stand adjustment Height, rotation, tilt
Extras 100 x 100mm VESA mount, HDMI, DisplayPort, HDMI and USB 3 cables, four-port USB 3 hub


Once extricated from its enormous box, the XB323U strikes a stylish figure with its very slim bezels and large but slim V-shaped foot. The stand, which is in large part made from solid metal with a metallic grey paint finish, offers height, rotation and tilt adjustment, but the panel can’t be pivoted into portrait orientation.

For features, the Acer includes a typical input selection of one DisplayPort connector and two HDMI ports, plus there’s a four-port USB 3 hub with two ports on the rear and two on the left edge. A headphone jack and some weak-sounding speakers are also present. There’s no USB Type-C input for connecting laptops and tablets, though.

Meanwhile, a mini D-pad and four buttons sit on the right rear of the panel. The top button is for power while the other three interact with the onscreen menus, as does the mini D-pad. The menu system is speedy and the control system is also largely intuitive.


The Acer XB3232U resolution of 2,560 x 1,440 is relatively low on a large 32″ panel, making for a pixel density of 92ppi. As a result, it doesn’t produce a very sharp image when you’re sat up close. However, this isn’t an issue for competitive gaming and it’s a level of sharpness on par with 24in 1080p displays.

Otherwise, the XB3232U image quality is decent. Its measured contrast ratio of 1,051:1 is typical for an IPS panel, while its default color temperature of 6,705K is reasonably close to the desired level of 6,500K. With a massive 170 percent coverage of the sRGB color space (120 percent DCI-P3), this monitor also has very vivid colors with good Delta E color accuracy (0.28 average).

The extended color range works wonders for HDR content and its performance is bolstered by a high 655cd/m² (measured) maximum brightness in HDR mode. However, contrast doesn’t rise beyond 1,000:1, so HDR ultimately lacks its titular dynamic range.

The three slight flies in the ointment are noticeable IPS glow in the corners, which can create a slightly grey look when watching dark images. The uniformity of the panel is a bit ropey too, with the left edge dropping an average 7.4 percent in brightness. Also, while the sRGB mode reins in that wide color gamut, it has poor color balance (7,529K) and also locks out color adjustments.

Acer Predator XB323U uniformity tests:

The panel uniformity tests for the Acer Predator XB323U

Thankfully, it gets back on track when it comes to gaming. Its speedy 270Hz refresh rate (which requires overclocking the panel from its default 240Hz) provides a fantastically responsive experience. Its average initial response time of 6.1ms, using its Normal overdrive mode, isn’t all that fast (it’s nearly double the 3.7ms frame time of a panel running at 270Hz), but cranking the overdrive up to Extreme results in a much nippier 4.1ms response time while only introducing minimal color overshoot.

It’s a shame there’s no backlight strobing blur reduction mode for further sharpening up the display’s response.

Acer Predator XB323U response time tests:

The Acer Predator XB323U response time tests


With a price tag of $700, the XB323U is an expensive monitor, especially considering its mid-range 2,560 x 1,440 resolution. However, its large 32″ screen size, 270Hz refresh rate, and premium build go a long way to balancing its value.


You pay a premium for the extra fast refresh rate of this panel, with several rivals offering a 165Hz refresh rate for half the price. However, if you simply must have the fastest possible response for a 32″ IPS panel, the XB323U delivers the goods.