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Compare LG 34GL750 vs ROG Strix XG256Q vs ROG Strix XG309CM

Connectivity

Ports
1x 3.5 mm Audio Out, 2x HDMI 2.0, 1x DisplayPort 1.4
1x DisplayPort 1.2, 1x 3.5 mm Audio Out, 1x USB 3.0 (Type-A; downstream), 2x HDMI 2.0
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)

Construction

Adjustment | Height
120 mm / 4.7244 in
110 mm / 4.3307 in
110 mm / 4.3307 in
Adjustment | Pivot
-3° ~ 3°
-0° ~ 90°
N/A
Adjustment | Swivel
N/A
-25° ~ 25°
-25° ~ 25°
Adjustment | Tilt
-5° ~ 20°
-5° ~ 20°
-5° ~ 20°
Camera
No
No
No
Colors
Black
Black
Black
Form Factor
Curved monitor
Speakers
2x 2W
VESA Mount
100 x 100 mm
100 x 100 mm
100 x 100 mm

Dimensions

Bezels
90.36% screen-to-body ratio
89.09% screen-to-body ratio
88.66% screen-to-body ratio
Size | Depth
3.43 in / 87 mm w/o stand, 11.01 in / 279.7 mm w/ stand
2.36 in / 60 mm w/o stand, 9.25 in / 235 mm w/ stand
2.91 in / 73.82 mm w/o stand, 10.43 in / 264.93 mm w/ stand
Size | Height
14.35 in / 364.5 mm w/o stand, 22.26 in / 565.3 mm w/ stand
13.03 in / 331 mm w/o stand, 15 in / 381 mm w/ stand
12.63 in / 320.68 mm w/o stand, 19.14 in / 486.14 mm w/ stand
Size | Width
32.28 in / 819.9 mm
21.97 in / 558 mm
27.85 in / 707.33 mm
Weight
6.1 kg / 13 lbs w/o stand , 8.3 kg / 18 lbs w/ stand
2.7 kg / 6 lbs w/o stand , 5.2 kg / 11 lbs w/ stand
4.56 kg / 10 lbs w/o stand , 7.5 kg / 17 lbs w/ stand

Display

Aspect Ratio
21:9
16:9
21:9
Brightness
300 nits
400 nits
300 nits
Contrast Ratio
1000:1 (static)
1000:1 (static), 100000000:1 (dynamic)
1000:1 (static), 100000000:1 (dynamic)
Display Backlight
W-LED
W-LED
W-LED
Display Color Depth
8 bits (6 bits + FRC), 16777216 colors
8 bits (6 bits + FRC), 16777216 colors
8 bits, 16777216 colors
Display Curvature
3800R
Display Diagonal
34" (34 in / 863.6 mm)
25" (24.5 in / 622.3 mm)
30" (29.5 in / 749.358 mm)
Display Type
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte
IPS, Anti-glare/Matte
Gamut
99% sRGB
99% sRGB
110% sRGB
Pixel Density
82 ppi
89 ppi
94 ppi
Pixel Pitch
0.312 mm
0.283 mm
0.27 mm
Refresh Rate
56 Hz ~ 144 Hz
48 Hz ~ 180 Hz
40 Hz ~ 220 Hz
Resolution
UW-FHD (2560x1080)
FHD (1920x1080)
UW-FHD (2560x1080)
Response Time
5 ms (min)
1 ms (min) / 4 ms (avg)
Viewing Angle
178° H / 178° V
178° H / 178° V
178° H / 178° V

Function

HDR
HDR10
DisplayHDR 400
HDR10
Licenses
UL (cUL), TUV-Type, CB, FCC-B, CE, CCC (for China), KC, VCCI, ErP, ROHS, REACH, Windows
BSMI, CB, CCC, CE, 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
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)
Operating Humidity
0 % ~ 80 %
Operating Temperature
0 °C ~ 40 °C , 32 °F ~ 104 °F
0 °C ~ 40 °C , 32 °F ~ 104 °F
0 °C ~ 40 °C , 32 °F ~ 104 °F
Variable Framerate
NVIDIA G-SYNC
NVIDIA G-SYNC, AMD FreeSync Premium
NVIDIA G-SYNC, AMD FreeSync Premium
Video
Crosshair, Flicker-free technology, Low Blue Light, Dynamic Action Sync, Adaptive-Sync Technology, Black Stabilizer
DisplayWidget, Extreme Low Motion Blur Sync (ELMB Sync), Flicker-free technology, GamePlus (Crosshair/Timer/FPS Counter/Display Alignment/Stopwatch), Shadow Boost, GameFast Input, Fast IPS, Trace Free Technology, GameVisual, Color Temperature Selection...
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...

Performance

Power Consumption
52 W (average) / 58 W (max) / 0.3 W (sleep) / 0.3 W (off)
16 W (average) / 0.5 W (sleep) / 0.3 W (off)
28 W (average) / 0.5 W (sleep) / 0.3 W (off)

Production

Accessory
DisplayPort cable, HDMI cable
DisplayPort cable, HDMI cable, USB 3.0 cable, USB Type-C cable
Debut
2019
2022
2021

Reviews

Neofiliac score
72%
57%
70%
Pros
  • Ultra-wide form factor
  • 3800 curvature
  • Stand with tilt, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • Support for NVIDIA G-SYNC
  • High 90.36 % screen-to-body ratio
  • DisplayHDR 400
  • Stand with tilt, swivel, pivot, and height adjustments
  • Fast 1 ms response time
  • High 1000:1 contrast ratio
  • Support for NVIDIA G-SYNC
  • 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
Cons
  • 8-bit display panel
  • 8-bit display panel
  • Low resolution
  • 8-bit display panel

Price

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