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Acer Predator XB273K Preview: 4K HDR 144Hz G-SYNC Gaming Monitor

By January 11, 2019 3 Comments
acer xb273k review 2019

Update: The Acer Predator XB273K can run 4K, 144Hz, and HDR simultaneously without any compression. This is achieved by connecting the monitor via two DisplayPort 1.4 cables/ports.

However, this way, the G-SYNC range is limited to 30-120Hz at 4K due to the limitations of the bandwidth provided by a single DisplayPort 1.4. You can still use G-SYNC with a 48-144Hz range at 1440p.


Acer has announced a more budget-friendly 4K 144Hz gaming monitor dubbed as the Acer Predator XB273K.

Unlike the expensive Acer Predator X27 with full-array local dimming (FALD) and G-SYNC HDR, the XB273K will only feature DisplayHDR 400-certified HDR10 support without FALD or quantum dots.

Image Quality

The full-array local dimming of the X27 4K 144Hz monitor consists of 384 individual zones which help control the backlight for the best image quality. Moreover, it has a peak luminance of over 1,000-nits, a superior static contrast of 20,000:1, and a wide color gamut for HDR content. All of that accumulated to its exceptional high price.

The Acer XB273K, on the other hand, will feature only a few dimming zones and a peak brightness of 400-nits. So, the image quality won’t be nearly as vibrant and impressive, but you will still have 4K 144Hz, a limited HDR support, NVIDIA G-SYNC, and a wide color gamut of 100% sRGB and 90% DCI-P3.

If the monitor is based on the same IPS panel as the X27 model, it will have a response time speed of 4ms which is enough for an immersive fast-paced gameplay without prominent ghosting.

Just like the X27, the Acer Predator XB273K will require at least a GTX 10xx series GPU with a DisplayPort 1.4 connector for native 4K at 120Hz.

For 4K and 144Hz, the display will have to use two DisplayPort 1.4 connectors.


The Predator series monitors include nifty gaming features such as customizable crosshairs, pre-calibrated gaming picture presets, and the ‘Dark Boost’ feature for better visibility in dark parts of games.

Furthermore, the Acer Predator XB273K 4K 144Hz gaming monitor supports NVIDIA G-SYNC technology which allows you to synchronize the monitor’s refresh rate with a compatible graphics card’s frame rates.

As a result, screen tearing and stuttering is completely eliminated within the dynamic refresh rate range which amounts to 30Hz-120Hz at 4K and 30Hz-144Hz at 1440p.

Design & Connectivity

acer xb273k amazon

The Acer Predator XB273K boasts the Acer ErgoStand with full ergonomic support including tilt, height, swivel, and pivot adjustments as well as VESA mount compatibility.

Connectivity includes two DisplayPort 1.4, a quad-USB 3.0 hub, and most likely an HDMI port. The monitor also includes a shielding hood for minimal distractions while gaming.

Price & Similar Monitors

The Acer Predator XB273K price is $1,299 MSRP which is significantly lower than the $1,999 Acer Predator X27.

Keep in mind that a similar 4K 144Hz DisplayHDR 400 monitor will be available with FreeSync instead of G-SYNC which is the Acer Nitro XV273K priced at $899 MSRP.

Finally, the Acer XB273K release date is set for Q4 2018/Q1 2019.

Acer Predator XB273K Specifications
Screen Size27-inch
Resolution3840x2160 (UHD)
Panel TypeIPS
Aspect Ratio16:9 (Widescreen)
Refresh Rate120Hz (144Hz OC)
Response Time4ms (GtG)
Adaptive SyncG-SYNC
Ports2x DisplayPort 1.4
Other Ports4x USB 3.0, Headphones Jack
Brightness400 cd/m2
Contrast Ratio1000:1 (static)
Colors1.07 billion
VESAYes (100x100mm)
HDRVESA DisplayHDR 400

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  • PsiEmitter

    Anyone has a clue, will there be a bigger variant of this?

  • JohnD

    I wish they’d stop with this 27″ 4K nonsense, especially at such ridiculous prices. 32″ is the sweet spot and where their focus should be, 27″ is just too small for 4K when it comes to productivity.

  • Nick Milton

    I came across this article today because I purchased this monitor yesterday. I was all excited when I read the “UPDATE”. I couldnt wait to get home from work and plug in another Displayport. Turns out this monitor only has one Displayport Input the other is HDMI 2.0. Can I do the same if I use one displayport and one HDMI coming from 2080 Ti?