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AOC

AOC G3 U32G3X/BK computer monitor 80 cm (31.5") 3840 x 2160 pixels 4K Ultra HD LED Black, Red

31.5-inch 4K, 144 Hz and 1 ms response: a very responsive gaming screen

Manufacturer reference U32G3X/BK

68 /100 Its best score: the most responsive screen, rated "very responsive" on its category’s scale.

No offer in stock on the GB market yet.

What the AOC G3 U32G3X/BK computer monitor 80 cm (31.5") 3840 x 2160 pixels 4K Ultra HD LED Black, Red is worth

The AOC U32G3X/BK is a 80 cm (31.5 inch) PC monitor with a Fast IPS panel, offering a 3840 x 2160 pixel 4K Ultra HD resolution in 16:9 format. It has 2 HDMI ports in version 2.1 and 2 DisplayPorts in version 1.4, a stand adjustable in height by 13 cm, and NVIDIA G-SYNC compatibility.

Within the monitor market, its 31.5 inch size exceeds the market median of 27 inches, earning it 83/100 on this criterion. Its 144 Hz refresh rate, against a median of 100 Hz, gives it 76/100 for fluidity, and its 1 ms response time versus a median of 4 ms earns 90/100 for responsiveness. Its 350 cd/m² brightness scores 77/100. However, with 1.07 billion displayed colors against a median of 16.7 billion, it only scores 20/100 on that point. Its overall score stands at 69/100.

This monitor is aimed at gaming use, with a 1 ms response time, a 144 Hz refresh rate and an AMD FreeSync range of 48 to 144 Hz. It suits those seeking a large, high resolution display with high fluidity, without prioritizing color richness first.

What the spec sheet says

  • 80 cm (31.5") Black, Red
  • Height adjustment 13 cm
  • HDMI HDMI version: 2.1 DisplayPorts quantity: 2 DisplayPort version: 1.4
  • Screen shape: Flat
  • Maximum refresh rate: 144 Hz Response time: 1 ms Response time measurement type: GTG (Gray to Gray) Response time (MPRT): 1 ms
  • 3840 x 2160 pixels 4K Ultra HD Panel type: Fast IPS
  • Energy efficiency class (SDR): F WEEE
  • Warranty period: 3 year(s)

Its scores, criterion by criterion

Scores out of 100, calculated from the datasheet and compared with the market. The full method is public.

Responsiveness Very responsive

1 ms · category median: 5 ms

Screen size Very large

31.5 " · category median: 27 "

Brightness Good

350 cd/m² · category median: 300 cd/m²

Smoothness Smooth

144 Hz · category median: 120 Hz

Colours Basic

1.1 · category median: 16.7

Documents

What the manufacturer publishes about this model. Each document opens in a new tab.

Specifications

Display 34
Display diagonal 80 cm (31.5")
Display resolution 3840 x 2160 pixels
HD type 4K Ultra HD
Native aspect ratio 16:9
Display technology LED
Panel type Fast IPS
Touchscreen No
Response time 1 ms
Screen shape Flat
Contrast ratio (typical) 1000:1
Maximum refresh rate 144 Hz
Display number of colours 1.07 billion colours
LED backlight Yes
Backlight type W-LED
Display brightness (typical) 350 cd/m²
Response time measurement type GTG (Gray to Gray)
Response time (MPRT) 1 ms
Anti-glare screen Yes
Contrast ratio (dynamic) 80000000:1
Viewing angle, horizontal 178°
Viewing angle, vertical 178°
Pixel pitch 0.181 x 0.181 mm
Pixel density 139 ppi
Viewable size, horizontal 69.7 cm
Viewable size, vertical 39.2 cm
Display diagonal (metric) 80 cm
High Dynamic Range (HDR) supported Yes
High Dynamic Range (HDR) technology DisplayHDR 400
Surface hardness 3H
Colour gamut standard Adobe RGB, DCI-P3, sRGB
sRGB coverage (typical) 122.9%
NTSC coverage (typical) 107%
Adobe RGB coverage 91.9%
DCI-P3 coverage 95.3%
Performance 6
NVIDIA G-SYNC Yes
AMD FreeSync refresh rate range 48 - 144 Hz
VESA Adaptive Sync support Yes
Flicker-free technology Yes
Low Blue Light technology Yes
Game mode Yes
Multimedia 2
Built-in speaker(s) No
Built-in camera No
Design 6
Market positioning Gaming
Product colour Black, Red
Frameless design Yes
Front bezel colour Black/Red
Detachable stand Yes
Feet colour Black, Red
Ports & interfaces 11
Built-in USB hub No
HDMI Yes
Headphone out Yes
HDMI ports quantity 2
HDMI version 2.1
DisplayPorts quantity 2
DisplayPort version 1.4
Headphone outputs 1
Headphone connectivity 3.5 mm
HDCP Yes
HDCP version 2.2
Ergonomics 14
VESA mounting Yes
Cable lock slot Yes
Height adjustment Yes
Panel mounting interface 100 x 100 mm
Cable lock slot type Kensington
Adjustable height (max) 13 cm
Pivot No
Swivelling Yes
Swivel angle range -30 - 30°
Tilt adjustment Yes
Tilt angle range -3.5 - 21.5°
Picture-in-Picture Yes
On Screen Display (OSD) Yes
On Screen Display (OSD) languages Simplified Chinese, Traditional Chinese, Czech, Dutch, English, Finnish, French, German, Italian, Japanese, Korean, Croatian, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Ukrainian
Power 12
Energy efficiency class (SDR) F
Energy efficiency class (HDR) G
Energy consumption (SDR) per 1000 hours 32 kWh
Energy consumption (HDR) per 1000 hours 65 kWh
Power consumption (typical) 40 W
Power consumption (standby) 0.5 W
Power consumption (off) 0.3 W
AC input voltage 100 - 240 V
AC input frequency 50/60 Hz
Input current 1.5 A
Power supply type Internal
Energy efficiency scale A to G
Weight & dimensions 8
Width (with stand) 715.3 mm
Depth (with stand) 258.8 mm
Height (with stand) 587.1 mm
Weight (with stand) 7.79 kg
Width (without stand) 715.3 mm
Depth (without stand) 47.6 mm
Height (without stand) 715.3 mm
Weight (without stand) 6.41 kg
Packaging data 1
Package weight 10.9 kg
Packaging content 4
Stand included Yes
Cables included AC, HDMI, DisplayPort
DisplayPort cable length 1.8 m
HDMI cable length 1.8 m
Sustainability 1
Sustainability compliance Yes
Other features 15
Brand specific technologies Crosshair
Low input lag Yes
FPS counter Yes
Dial point Yes
Shadow control Yes
Motion blur reduction Yes
Local dimming Yes
Local dimming zones 16
Warranty period 3 year(s)
Picture-by-Picture (PbP) Yes
Digital signal format system Not supported
Exterior finish type Textured
Bezel thickness type Frameless
Compliance certificates WEEE
Certification WEEE
Technical details 1
Native refresh rate 60 Hz

Who this model suits

It’s for you if

Your first criterion is the responsiveness: it happens to be its best score.
You want a good score on the screen size, above its category average.
You prefer a model tracked across several merchants, to buy at the right time.

Skip it if

Its lowest score is on the colour count: skip it if that is decisive for you.

Frequently asked questions

Answers drawn from this model’s datasheet.

It displays 1.07 billion colours, which remains basic compared to the market (colour score 20/100). sRGB coverage reaches 122.9%, Adobe RGB 91.9% and DCI-P3 95.3%, decent values but the colour count limits demanding colour work.

Yes: 144 Hz refresh rate and 1 ms GTG response time, versus a market median of 100 Hz and 4 ms. The responsiveness score reaches 90/100 and fluidity 76/100, with NVIDIA G-SYNC and AMD FreeSync support (48-144 Hz).

Yes: height adjustable up to 13 cm, tilt from -3.5 to 21.5°, swivel from -30 to 30°, but no pivot function (portrait rotation). VESA 100x100 mm mounting is also available.

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