Comparison between Dell U2520D vs Asus PB278Q

General Info
Model Number	Dell U2520D	Asus PB278Q

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Type	Monitor	Monitor
Year	2020	2012
Brand	Dell	Asus
Model Series	UltraSharp
Model Number	U2520D	PB278Q
Alias	UltraSharp U2520D
Display
Screen Size Class	25" (inches)	27" (inches)
Diagonal Size	24.98 in 63.4 cm 634.4 mm 2.08 ft	26.96 in 68.5 cm 684.7 mm 2.25 ft
Screen Width	21.77 in 55.3 cm 552.96 mm 1.81 ft	23.49 in 59.7 cm 596.736 mm 1.96 ft
Screen Height	12.25 in 31.1 cm 311.04 mm 1.02 ft	13.22 in 33.6 cm 335.664 mm 1.1 ft
Display Manufacturer		Samsung
Display Type	IPS	PLS
Display Bit Depth	8 bits	8 bits
Frame Rate Control	No	No
Max Number of Colors	16777216	16777216
Bits	24	24
Screen Aspect Ratio	16:9	16:9
Screen Resolution	2560 x 1440	2560 x 1440
Screen Pixel Pitch	0.216 mm	0.233 mm
Screen Pixel Density	117 ppi	109 ppi
Screen-to-Body Ratio	91.23 %	80.66 %
Backlight Source	W-LED	W-LED
DCI P3	95%
sRGB	99 %	99.5 %
Adobe RGB 1998		78.1 %
NTSC 1953		81 %
Screen Brightness	350 cd/m²	300 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast		80000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag		17 ms
Display Minimum Response Time	5 ms	5 ms
Display Average Response Time	8 ms	12 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte
HDR	DisplayHDR 400
3D	No	No
Size, weight, color
Case Depth	1.96 in 5 cm 49.9 mm 0.16 ft	2.74 in 7 cm 69.6 mm 0.23 ft
Case Weight	4.2 kg 9 lbs
Case Width with Stand	22.35 in 56.8 cm 567.7 mm 1.86 ft	25.31 in 64.3 cm 643 mm 2.11 ft
Case Height with Stand	15.07 in 38.3 cm 382.9 mm 1.26 ft	21.74 in 55.2 cm 552.3 mm 1.81 ft
Case Depth with Stand	7.28 in 18.5 cm 185 mm 0.61 ft	8.58 in 21.8 cm 218 mm 0.72 ft
Case Weight with Stand	6.4 kg 14 lbs	8.8 kg 19 lbs
Case Color	Black	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x USB 3.0 (Type-C; 90W; DisplayPort) 1 x USB 3.0 (Type-C; Gen 1; downstream; 15W) 1 x DisplayPort 1.4 (in) 1 x 3.5 mm Audio Out 1 x DisplayPort 1.4 (out) 1 x HDMI 2.0 (CEC) 1 x USB 3.0 (downstream; BC 1.2 charging at 2A) 2 x USB 3.0 (Type-A; downstream)	1 x DVI-D Dual Link 1 x D-sub 2 x 3.5 mm Audio Out 1 x HDMI 1.4 1 x DisplayPort 1.2
Audio
Audio Speakers		2 x 3W
Features
Cool Features	Flicker-free technology Low Blue Light	HDCP (High-bandwidth Digital Content Protection)
Extra Features	Security lock slot Anti-theft stand lock slot
Ergonomics
Case Width	22.35 in 56.8 cm 567.7 mm 1.86 ft	25.31 in 64.3 cm 643 mm 2.11 ft
Case Height	13.07 in 33.2 cm 332.1 mm 1.09 ft	15.2 in 38.6 cm 386.2 mm 1.27 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	100 x 100	100 x 100
Removable VESA Stand	Yes	Yes
Height Adjustment	Yes	Yes
Height Adjustment Range	130 mm 13 cm 5.1181 in 0.4265 ft	120 mm 12 cm 4.7244 in 0.3937 ft
Landscape or Portrait Pivot Support	Yes	Yes
Left Pivot	90 °	0 °
Right Pivot	90 °	90 °
Left or Right Swivel Support	Yes	Yes
Left Swivel	45 °	60 °
Right Swivel	45 °	60 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	21 °	20 °
Frequency and Interpolation
Vertical Digital Frequency	60 Hz	50 Hz - 75 Hz
Horizontal Digital Frequency		24 kHz - 89 kHz
Screen Interpolation Measurement Unit	NULL
Accessories
Extras	DisplayPort cable USB Type-C to Type-C cable USB Type-C to Type-A cable	Audio cable D-sub cable DisplayPort cable DVI-D cable HDMI cable
Certificates and Standards
Licenses	BFR-free CEL ENERGY STAR 6.0 EPEAT Mercury-free NFPA 99 PVC-free RoHS Compliant TCO Certified Displays	BSMI CB CCC CE cTick CU ErP ENERGY STAR FCC Class B KCC PSE RoHS UL/cUL WEEE
Usage and Storage Requirements
Safe Operating Temperature Level	0 °C - 40 °C 32 °F - 104 °F
Safe Operating Humidity Level	10 % - 80 %
Internal Storage Temperature	-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity	5 % - 90 %
Max Operating Altitude	5000
Max Storage Altitude	12192

Dell U2520D

Asus PB278Q