Compare ROG Strix XG309CM vs Asus ROG Strix XG27AQ vs Asus ROG Swift PG279Q
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, 1x DisplayPort 1.2, 1x 3.5 mm Audio Out, 2x USB 3.0 (Type-A; downstream), 1x USB 3.0 (Type-B; upstream)
1x HDMI 1.4, 1x DisplayPort 1.2, 1x 3.5 mm Audio Out, 2x USB 3.0 (downstream), 1x USB 3.0 (upstream)
Construction
Adjustment | Height
110 mm / 4.3307 in
100 mm / 3.937 in
120 mm / 4.7244 in
Adjustment | Pivot
N/A
-0° ~ 90°
-0° ~ 90°
Adjustment | Swivel
-25° ~ 25°
-25° ~ 25°
-60° ~ 60°
Adjustment | Tilt
-5° ~ 20°
-5° ~ 20°
-5° ~ 20°
Camera
No
No
No
Colors
Black
Black
Black
Speakers
2x 2W
2x 2W
2x 2W
VESA Mount
100 x 100 mm
100 x 100 mm
100 x 100 mm
Dimensions
Bezels
88.66% screen-to-body ratio
89.33% screen-to-body ratio
89.04% screen-to-body ratio
Size | Depth
2.91 in / 73.82 mm w/o stand, 10.43 in / 264.93 mm w/ stand
3.23 in / 82 mm w/o stand, 10.04 in / 255 mm w/ stand
2.6 in / 65.98 mm w/o stand, 9.37 in / 237.9 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
14.29 in / 362.96 mm w/o stand, 21.75 in / 552.53 mm w/ stand
Size | Width
27.85 in / 707.33 mm
24.06 in / 611 mm
24.4 in / 619.77 mm
Weight
4.56 kg / 10 lbs w/o stand , 7.5 kg / 17 lbs w/ stand
50 kg / 110 lbs w/o stand , 8.6 kg / 19 lbs w/ stand
7 kg / 15 lbs w/ stand
Display
Aspect Ratio
21:9
16:9
16:9
Brightness
300 nits
400 nits
350 nits
Contrast Ratio
1000:1 (static), 100000000:1 (dynamic)
1000:1 (static), 100000000:1 (dynamic)
1000:1 (static)
Display Backlight
W-LED
W-LED
W-LED
Display Color Depth
8 bits, 16777216 colors
8 bits, 16777216 colors
8 bits, 16777216 colors
Display Diagonal
30" (29.5 in / 749.358 mm)
27" (26.96 in / 684.66 mm)
27" (27 in / 685.8 mm)
Display Type
IPS, Anti-glare/Matte
IPS, Anti-glare/Matte
AHVA IPS, Anti-glare/Matte, AU Optronics
Gamut
110% sRGB
95% DCI-P3, 130% sRGB
68.1% Adobe RGB, 72% NTSC, 100% sRGB
Input Lag
4 ms
Pixel Density
94 ppi
109 ppi
109 ppi
Pixel Pitch
0.27 mm
0.233 mm
0.233 mm
Refresh Rate
40 Hz ~ 220 Hz
48 Hz ~ 170 Hz
30 Hz ~ 165 Hz
Resolution
UW-FHD (2560x1080)
QHD (2560x1440)
QHD (2560x1440)
Response Time
1 ms (min)
4 ms (min) / 5 ms (avg) / 7 ms (max)
Viewing Angle
178° H / 178° V
178° H / 178° V
178° H / 178° V
Function
HDR
HDR10
DisplayHDR 400, HDR10
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, CB, CCC, CE, CEL level 1, cTick, CU, ErP, ENERGY STAR, FCC Class B, J-MOSS, KCC, PSE, RCM, RoHS, TÜV Low Blue Light, TÜV Flicker-free, UL/cUL, VCI, WEEE, WHQL (Windows 8.1; Windows 7)
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, AMD FreeSync Premium
NVIDIA G-SYNC
NVIDIA G-SYNC
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, Multi HDR Mode, Shadow Boost, Color Temperature Selection, GameVisual, Dynamic Shadow Boost, Fast IPS, Ultra-Low Blue Light, GameFast Input technology, Trace Free Technology, ELMB (Extreme Low Motion Blur) Sync, Display Widget, Adaptive...
HDCP (High-bandwidth Digital Content Protection), Refresh Rate Turbo key, Flicker-free technology, Ultra-low Blue Light, Trace Free Technology, 5-way OSD joystick, GamePlus (Crosshair/Timer)
Performance
Energy Efficiency
C
Power Consumption
28 W (average) / 0.5 W (sleep) / 0.3 W (off)
35 W (average) / 0.5 W (sleep) / 0.5 W (off)
40 W (average) / 90 W (max) / 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, USB 3.0 cable
Debut
2021
2020
2019
Reviews
Neofiliac score
70%
87%
56%
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 1 ms response time
- High 1000:1 contrast ratio
- Support for NVIDIA G-SYNC
- Build-in speakers included
- Stand with tilt, swivel, pivot, 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
- No publicized HDR support
- 8-bit display panel
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