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27 inch black flat OLED gaming monitor on height adjustable stand

Acer America

Acer America UM.GXXAA.501 Predator X27U 27" 2560x1440 500Hz OLED gaming monitor

SKU CH-M9WN-77XK3 MPN UM.GXXAA.501

A 27 inch OLED gaming monitor with 2560 x 1440 resolution, 500Hz refresh rate and 0.03 ms response time

  • Screen size27 in (68.6 cm)
  • Display resolution2560 × 1440 (2K)
  • Refresh frequency500 Hz
  • Panel typeOLED
  • Pixel response time0.03 ms
  • Variable refresh rateFreeSync Premium Pro

Model 27” OLED WQHD 500Hz

  • Ultra-smooth motion with a 500Hz refresh rate
  • Near-instant pixel response at 0.03ms for zero ghosting
  • Deep blacks and vivid contrast from 1,500,000:1 OLED panel
  • True-to-life colour covering 99% DCI-P3 gamut
  • Ergonomic flexibility via height, swivel, pivot and tilt adjustments

27 inch 500Hz OLED monitor for competitive play

This 27 inch OLED panel runs at 2560 x 1440 with a 500Hz refresh rate and a 0.03ms response time. It targets competitive players who need the lowest possible motion blur and input lag. FreeSync Premium Pro provides adaptive sync across the full range. The flat screen covers 99% DCI-P3 and reaches 1000 cd/m2 peak brightness.

Sustained brightness and heat management

OLED pixels emit their own light so no backlight dimming occurs during long sessions. The 1,500,000:1 contrast ratio stays constant because each pixel switches off completely. Peak brightness of 1000 cd/m2 is available for HDR highlights without a time limit. The panel maintains 99% DCI-P3 coverage at all luminance levels.

500Hz refresh rate at 1440p resolution

The single specification that decides fit is the 500Hz refresh rate paired with 2560 x 1440 resolution. Buyers who need 4K detail or a wider ultrawide format will not be served by this panel. Systems that cannot sustain high frame rates at 1440p will not use the full capability. The 0.03ms response time only matters when the GPU delivers frames at that pace.

How it compares

Measured against everything we stock in Monitors for Gamers, at today’s prices. Recalculated every night.

Price $611.99
Pricier than about 90% of the 839 comparable items (median $189.99).
Screen size 27 in (68.6 cm)
Typical for this category: the median of 814 items is 27 in.
Refresh frequency 500 Hz
Higher than about 93% of the 735 comparable items (median 180 Hz).

Specifications

Product
Brand nameAcer
Product linePredator
Model nameX27U F5bmiippruzx
Part numberUM.GXXAA.501
Case colorBlack
Display
Screen size27 in (68.6 cm)
Display resolution2560 × 1440 (2K)
Refresh frequency500 Hz
Panel typeOLED
Pixel response time0.03 ms
Image brightness1000 cd/m2
Screen curvatureFlat Panel
Screen finishYes
BacklightNo
Variable refresh rateFreeSync Premium Pro
Viewing angles178° (H) / 178° (V)
Screen ratio16:9
Contrast1,500,000:1
Color gamut coverageDCI-P3 99%
Colors displayed1.07 Billion
Pixel pitch0.229 mm
Audio & video
Integrated speakers2 × 5 W
Integrated webcamNo
Ports & slots
HDMI ports2 x HDMI 2.1
DisplayPort connectors2 x DisplayPort 1.4
Video connectors1 x USB-C (DP Alternative) / 2 x DisplayPort 1.4 / 2 x HDMI 2.1
USB connections1 x USB Type-C
Size & build
Stand adjustabilityHeight, Pivot, Swivel, Tilt
VESA mounting pattern75 × 75 mm
Product dimensions24.04 inx21.5 in~16.77 inx12.32 in
Product weight12.21 lb (5.54 kg)
Shipping weight9.89 kg
Package size845 × 483 × 165 mm

Other versions of this model

4 more in the same range

Questions about this item

Does the 500 Hz OLED panel run hot or draw much power during all-day sessions?

The panel is rated at 1000 cd/m2 peak brightness with a 1,500,000:1 contrast ratio, and the OLED design means no LED backlight is present, which typically limits sustained heat output compared to high-brightness LCDs.

Which cables and GPU ports do I need to actually hit 2560 x 1440 at 500 Hz?

You need a graphics card with DisplayPort 1.4 or HDMI 2.1 output and a matching certified cable; the monitor provides two DisplayPort 1.4 and two HDMI 2.1 inputs for that connection.

Will my older GPU that only has HDMI 1.4 and DisplayPort 1.2 still drive this screen at 1440p?

Yes, the monitor will accept the signal, but the 500 Hz refresh rate requires DisplayPort 1.4 or HDMI 2.1 bandwidth; older ports will fall back to lower refresh rates at 2560 x 1440.

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