Compare ASUS ROG Swift PG279QM vs Asus PA27UCX vs Gigabyte S55U
Variants
Monitor only
W/ Colorimeter
Connectivity
Ports
3x HDMI 2.0, 1x DisplayPort 1.4, 1x 3.5 mm Audio Out, 2x USB 3.0 (Type-A; downstream), 1x USB 3.0 (Type-B; upstream)
1x USB-C + 4x USB 3.0 + 2x HDMI 2.0 + 1x DisplayPort 1.2 + 1x Headphone
1x USB 3.2 (Type-B; Gen 1; 5 Gbps upstream), 1x Ethernet RJ45, 2x HDMI 2.1 (CEC), 1x 3.5 mm Audio Out, 1x Optical Audio Out, 2x HDMI 2.0 (CEC), 1x USB 2.0, 1x USB 3.2 (Type-A; Gen 1; 5 Gbps downstream)
Wireless Connectivity
WiFi 5 + Bluetooth + WiFi Direct
Construction
Adjustment | Height
100 mm / 3.937 in
N/A
Adjustment | Pivot
-0° ~ 90°
-90° ~ 90°
N/A
Adjustment | Swivel
-25° ~ 25°
-60° ~ 60°
N/A
Adjustment | Tilt
-5° ~ 20°
-5° ~ 23°
N/A
Camera
No
No
Colors
Black
Black
Speakers
2x 2W
2x 2W
2x 10W
VESA Mount
100 x 100 mm
100 x 100 mm
400 x 300 mm
Dimensions
Bezels
4660.4% screen-to-body ratio
93.17% screen-to-body ratio
Size | Depth
3.54 in / 90 mm w/o stand, 10.04 in / 255 mm w/ stand
367.2 mm w/o stand
3.86 in / 98 mm w/o stand, 12.17 in / 309 mm w/ stand
Size | Height
0.28 in / 7 mm w/o stand, 16.06 in / 408 mm w/ stand
91.3 mm w/o stand
28.23 in / 717 mm w/o stand, 29.49 in / 749 mm w/ stand
Size | Width
24.17 in / 614 mm
625.2 mm
48.5 in / 1232 mm
Weight
4.5 kg / 10 lbs w/o stand , 8.1 kg / 18 lbs w/ stand
7.6 kg w/o stand
16.9 kg / 37 lbs w/o stand , 18.1 kg / 40 lbs w/ stand
Display
Aspect Ratio
16:9
16:9
16:9
Brightness
350 nits / 400 nits (peak)
300 nits (typical) / 1000 nits (HDR, peak)
500 nits / 1500 nits (peak)
Contrast Ratio
1000:1 (static)
1000:1 (typical) / 1000000:1 (HDR, max)
5000:1 (static)
Display Backlight
W-LED
Full-Array LED (Mini-LED) w/ 576-zone local dimming
Direct LED (Full Array Local Dimming)
Display Color Depth
8 bits, 16777216 colors
1073.7M (10-bit)
10 bits, 1073741824 colors
Display Diagonal
27" (27 in / 685.8 mm)
27 inch
55" (54.65 in / 1388 mm)
Display Type
IPS, Anti-glare/Matte
IPS matte w/ Quantum-dot technology
VA
Gamut
97% DCI-P3, 150% sRGB
99.5% Adobe RGB, 97% DCI-P3, 100% sRGB, 83% Rec. 2020
96% DCI-P3, 140% sRGB
Pixel Density
109 ppi
80 ppi
Pixel Pitch
0.233 mm
0.155 mm
0.315 mm
Refresh Rate
1 Hz ~ 240 Hz
60 Hz
48 Hz ~ 120 Hz
Resolution
QHD (2560x1440)
4K UHD (3840x2160)
4K (3840x2160)
Response Time
1 ms (min)
4 ms (gray to gray)
2 ms (min) / 5 ms (avg)
Viewing Angle
178° H / 178° V
178° (H) / 178° (V)
178° H / 178° V
Function
HDR
DisplayHDR 400, HDR10
HDR10, HLG, Dolby Vision, VESA DisplayHDR 1000
HDR10, HDR10+, HLG (Hybrid Log Gamma), Dolby Vision, Dolby Vision IQ
Licenses
TÜV Low Blue Light, TÜV Flicker-free
Operating System
Android 11
Operating Temperature
0 °C ~ 40 °C , 32 °F ~ 104 °F
Variable Framerate
NVIDIA G-SYNC
Adaptive-Sync, 48 ~ 75 Hz
AMD FreeSync Premium
Video
Dark Boost, Fast IPS, Ultra Low Blue Light, GamePlus (Stopwatch/Crosshair/Timer/FPS Counter/Display Alignment), GameVisual, Flicker-free technology, Asus Aura Sync Lighting, NVIDIA Reflex Latency Analyzer, Customized heatsink, Trace Free Technology
YouTube, Black Equalizer, Parental Control, Google Assistant, Low Blue Light, Timer, Prime Video, Light Sensor, Crosshair, 6-axis Color Control, Quantum Dot Color, Netflix, Aim Stabilizer Sync, Noise Reduction
Performance
Energy Efficiency
C
Power Consumption
42 W (average) / 0.5 W (sleep) / 0.5 W (off)
46 W
83 W (average) / 0.3 W (sleep)
Power Supply
60 W Power Deliver via USB-C
Production
Accessory
DisplayPort cable, HDMI cable, USB 3.0 cable
HDMI cable
Debut
2021
2019
2022
Reviews
Neofiliac score
90%
96%
84%
Pros
- 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
- High 4660.4 % screen-to-body ratio
- Build-in speakers included
- Mini LED backlighting
- Full-Array LED local dimming
- HDR10, HLG (Hybrid Log Gamma), Dolby Vision, DisplayHDR 1000
- Rich color reproduction
- Stand with tilt, swivel, pivot, and height adjustments
- High 1000:1 contrast ratio
- 10-bit display panel
- Full-Array LED local dimming
- Rich color reproduction
- High 5000:1 contrast ratio
- 10-bit display panel
- High 93.17 % screen-to-body ratio
- Build-in speakers included
Cons
- 8-bit display panel
- Stand lacks ergonomic adjustment
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