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Compare ROG Strix XG309CM vs ASUS ROG Strix XG27AQM vs ASUS ROG XG438Q

Connectivity

Ports
1x HDMI 2.0, 1x DisplayPort 1.2, 1x 3.5 mm Audio Out, 2x USB 3.0 (Type-A; downstream), 1x USB 3.0 (Type-C; upstream; 15W)
2x HDMI 2.0, 2x DisplayPort 1.2, 1x 3.5 mm Audio Out, 2x USB 3.0 (Type-A; downstream), 1x USB 3.0 (Type-B; upstream)
3x HDMI 2.0, 1x DisplayPort 1.4, 1x 3.5 mm Audio Out, 1x 3.5 mm Audio In, 2x USB 3.0 (downstream), 1x USB 3.0 (upstream)

Construction

Adjustment | Height
110 mm / 4.3307 in
100 mm / 3.937 in
N/A
Adjustment | Pivot
N/A
-0° ~ 90°
N/A
Adjustment | Swivel
-25° ~ 25°
-25° ~ 25°
N/A
Adjustment | Tilt
-5° ~ 20°
-5° ~ 20°
-5° ~ 10°
Camera
No
No
No
Colors
Black
Black
Black
Speakers
2x 2W
2x 2W
2x 5W
VESA Mount
100 x 100 mm
100 x 100 mm
100 x 100 mm

Dimensions

Bezels
88.66% screen-to-body ratio
88.89% screen-to-body ratio
89.6% screen-to-body ratio
Size | Depth
2.91 in / 73.82 mm w/o stand, 10.43 in / 264.93 mm w/ stand
3.54 in / 90 mm w/o stand, 10.04 in / 255 mm w/ stand
2.94 in / 74.6 mm w/o stand, 9.54 in / 242.19 mm w/ stand
Size | Height
12.63 in / 320.68 mm w/o stand, 19.14 in / 486.14 mm w/ stand
14.45 in / 367 mm w/o stand, 16.06 in / 408 mm w/ stand
22.47 in / 570.62 mm w/o stand, 24.85 in / 631.31 mm w/ stand
Size | Width
27.85 in / 707.33 mm
24.17 in / 614 mm
38.37 in / 974.58 mm
Weight
4.56 kg / 10 lbs w/o stand , 7.5 kg / 17 lbs w/ stand
4 kg / 9 lbs w/o stand , 7.6 kg / 17 lbs w/ stand
13.2 kg / 29 lbs w/o stand , 15.3 kg / 34 lbs w/ stand

Display

Aspect Ratio
21:9
16:9
16:9
Brightness
300 nits
350 nits / 400 nits (peak)
450 nits / 600 nits (peak)
Contrast Ratio
1000:1 (static), 100000000:1 (dynamic)
1000:1 (static), 100000000:1 (dynamic)
4000:1 (static)
Display Backlight
W-LED
W-LED
W-LED
Display Color Depth
8 bits, 16777216 colors
8 bits, 16777216 colors
10 bits (8 bits + FRC), 1073741824 colors
Display Diagonal
30" (29.5 in / 749.358 mm)
27" (26.96 in / 684.66 mm)
43" (43 in / 1092.2 mm)
Display Type
IPS, Anti-glare/Matte
IPS, Anti-glare/Matte
VA, Anti-glare/Matte (3H)
Gamut
110% sRGB
97% DCI-P3, 150% sRGB
90% DCI-P3
Pixel Density
94 ppi
109 ppi
103 ppi
Pixel Pitch
0.27 mm
0.233 mm
0.245 mm
Refresh Rate
40 Hz ~ 220 Hz
48 Hz ~ 270 Hz
48 Hz ~ 120 Hz
Resolution
UW-FHD (2560x1080)
QHD (2560x1440)
4K (3840x2160)
Response Time
0.5 ms (min)
4 ms (min)
Viewing Angle
178° H / 178° V
178° H / 178° V
178° H / 178° V

Function

HDR
HDR10
DisplayHDR 400, HDR10
HDR10, DisplayHDR 600
Licenses
BSMI, CB, CCC, CE, CEL level 1, cTick, CU, eStandby, ENERGY STAR, FCC Class B, J-MOSS, KCC, PSE, RCM, RoHS, TÜV Flicker-free, TÜV Low Blue Light, UL/cUL, VCCI, WEEE, WHQL (Windows 10; Windows 8.1; Windows 7)
TUV Flicker-free, TUV Low Blue Light
BSMI, C-Tick, CB, CCC, CE, CU, ENERGY STAR, ErP, FCC, J-MOSS, RoHS, TÜV Flicker-free, TÜV Low Blue Light, UL/cUL, VCCI, WEEE, WHQL (Windows 10; Windows 8.1; Windows 8; Windows 7)
Operating Humidity
20 % ~ 90 %
Operating Temperature
0 °C ~ 40 °C , 32 °F ~ 104 °F
0 °C ~ 40 °C , 32 °F ~ 104 °F
5 °C ~ 40 °C , 41 °F ~ 104 °F
Variable Framerate
NVIDIA G-SYNC, AMD FreeSync Premium
NVIDIA G-SYNC
AMD FreeSync
Video
ASUS DisplayWidget, Ultra-Low Blue Light, ASUS Smart Contrast Ratio (ASCR), KVM Switch, Color Accuracy - △EELMB Sync (Extreme Low Motion Blur Sync), Flicker-free technology, Trace Free Technology, Fast IPS technology, Aura Sync Lighting Effect, Adaptiv...
Color Accuracy, Shadow Boost, Trace Free Technology, Color Temperature Selection, GameVisual, Dynamic Shadow Boost, Fast IPS, Multi HDR Mode, GameFast Input technology, Ultra-Low Blue Light, ELMB (Extreme Low Motion Blur) Sync, Display Widget, Adaptive...
Aura Sync, Extreme Low Motion Blur, Picture-in-Picture, GamePlus (Crosshair/Timer/FPS Counter/Display Alignment), HDCP (High-bandwidth Digital Content Protection), SPLENDID Video Intelligence Technology, GameVisual, Flicker-free technology, 5-way OSD j...

Performance

Power Consumption
28 W (average) / 0.5 W (sleep) / 0.3 W (off)
31 W (average) / 0.5 W (sleep) / 0.5 W (off)
48 W (average) / 0.5 W (sleep) / 0.5 W (off)

Production

Accessory
DisplayPort cable, HDMI cable, USB 3.0 cable, USB Type-C cable
DisplayPort cable, HDMI cable, USB 3.0 cable
DisplayPort cable, HDMI cable, Remote control, USB 3.0 cable
Debut
2021
2021
2019

Reviews

Neofiliac score
70%
87%
77%
Pros
  • 220Hz max refresh rate
  • Ultra-wide form factor
  • Stand with tilt, swivel, and height adjustments
  • High 1000:1 contrast ratio
  • Support for NVIDIA G-SYNC
  • Build-in speakers included
  • DisplayHDR 400, HDR10
  • Rich color reproduction
  • Stand with tilt, swivel, pivot, and height adjustments
  • Fast 0.5 ms response time
  • High 1000:1 contrast ratio
  • Support for NVIDIA G-SYNC
  • Build-in speakers included
  • HDR10, DisplayHDR 600
  • Rich color reproduction
  • High 4000:1 contrast ratio
  • 10-bit display panel
  • Build-in speakers included
Cons
  • 8-bit display panel
  • 8-bit display panel
  • Only tilt adjustment

Price

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