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Comparison between Asus PA27AC vs HP U28 4K HDR

General Info
Model Number Asus PA27AC HP U28 4K HDR
Price
Type Monitor Monitor
Year 2017 2020
Brand Asus HP
Model Series ProArt
Model Number PA27AC U28 4K HDR
Alias 1Z978AA
Display
Screen Size Class 27" (inches) 28" (inches)
Diagonal Size 27 in
68.6 cm
685.8 mm
2.25 ft
27.9 in
70.9 cm
708.538 mm
2.32 ft
Screen Width 23.49 in
59.7 cm
596.736 mm
1.96 ft
24.45 in
62.1 cm
620.928 mm
2.04 ft
Screen Height 13.22 in
33.6 cm
335.664 mm
1.1 ft
13.44 in
34.1 cm
341.28 mm
1.12 ft
Display Type IPS IPS
Display Bit Depth 8 bits 10 bits (8 bits + FRC)
Frame Rate Control No Yes
Lut 14 bits
Max Number of Colors 16777216 1073741824
Bits 24 30
Screen Aspect Ratio 16:9 16:9
Screen Resolution 2560 x 1440 3840 x 2160
Screen Pixel Pitch 0.233 mm 0.116 mm
Screen Pixel Density 109 ppi 157 ppi
Screen-to-Body Ratio 92.42 % 89.61 %
Backlight Source W-LED W-LED
DCI P3 93%
sRGB 100 % 100 %
Adobe RGB 1998 72 %
Screen Brightness 400 cd/m² 400 cd/m²
Static Screen Contrast 1000 : 1 1000 : 1
Dynamic Screen Contrast 100000000 : 1
Screen Horizontal Viewing Angle 178 ° 178 °
Screen Vertical Viewing Angle 178 ° 178 °
Display Minimum Response Time 5 ms 4 ms
Display Coating Anti-glare/Matte Anti-glare/Matte (3H)
HDR HDR10
DisplayHDR 400
HDR
3D No No
Size, weight, color
Case Depth 2.17 in
5.5 cm
55 mm
0.18 ft
1.71 in
4.3 cm
43.4 mm
0.14 ft
Case Weight 5.4 kg
12 lbs
Case Width with Stand 24.17 in
61.4 cm
614 mm
2.01 ft
25.08 in
63.7 cm
637.1 mm
2.09 ft
Case Height with Stand 15.2 in
38.6 cm
386 mm
1.27 ft
20.92 in
53.1 cm
531.4 mm
1.74 ft
Case Depth with Stand 8.7 in
22.1 cm
221 mm
0.73 ft
7.48 in
19 cm
189.9 mm
0.62 ft
Case Weight with Stand 8.5 kg
19 lbs
6.35 kg
14 lbs
Case Color Black, Gray Black
Hardware
Internal Storage 8
Built-in Camera No No
Connectivity 1 x USB 3.0 (Type-C)
1 x USB 3.0 (upstream)
1 x HDMI 2.0
2 x Thunderbolt 3.0
1 x DisplayPort 1.2
2 x HDMI 1.4
1 x USB 2.0 (downstream)
1 x 3.5 mm Audio Out
2 x USB 3.0 (downstream)
1 x HDMI 2.0
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
1 x USB (Type-C; upstream; 65W; DP Alt Mode)
3 x USB 3.2 (Type-A; Gen 1; downstream)
Audio
Audio Speakers 2 x 2W 2 x 3W
Features
Cool Features Flicker-free technology
HDCP (High-bandwidth Digital Content Protection)
Picture-by-Picture
SPLENDID Video Intelligence Technology
Picture-in-Picture
Low Blue Light
5-way OSD joystick
Trace Free Technology
Adaptive-Sync Technology
Flicker-free technology
Low Blue Light
Extra Features Security lock slot
Ergonomics
Case Width 24.17 in
61.4 cm
614 mm
2.01 ft
25.08 in
63.7 cm
637.1 mm
2.09 ft
Case Height 13.9 in
35.3 cm
353 mm
1.16 ft
14.61 in
37.1 cm
371.2 mm
1.22 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 120 mm
12 cm
4.7244 in
0.3937 ft
Landscape or Portrait Pivot Support Yes Yes
Left Pivot 90 ° 90 °
Right Pivot 90 ° 90 °
Left or Right Swivel Support Yes Yes
Left Swivel 60 °
Right Swivel 60 °
Forward and Backward Tilt Support Yes Yes
Forward Tilt 5 ° 5 °
Backward Tilt 23 ° 23 °
Frequency and Interpolation
Vertical Digital Frequency 48 Hz - 60 Hz 23 Hz - 75 Hz
Horizontal Digital Frequency 30 kHz - 120 kHz 30 kHz - 140 kHz
Screen Interpolation Measurement Unit NULL
Accessories
Extras DisplayPort cable
HDMI cable
Thunderbolt 3 cable
USB 3.0 upstream cable
DisplayPort cable
HDMI cable
USB Type-C cable
Certificates and Standards
Licenses BSMI
CB
CCC
CE
CEL level 1
cTick
CU
eStandby
ENERGY STAR
FCC Class B
J-MOSS
KCC
PSE
RCM
RoHS
TCO Certified Displays 7.0
TÜV Flicker-free
TÜV Low Blue Light
UL/cUL
VCCI
WEEE
WHQL (Windows 10; Windows 8.1; Windows 7)
Australian-New Zealand MEPS
BSMI
CB
CCC
CE
CECP
CEL
EAC
ENERGY STAR
FCC
ISO 9241-307
KC/KCC
NOM
PSB
SEPA
TCO Certified
TUV-S
UL/CSA
VCCI
Vietnam MEPS
WEEE
ISC
WW application
ICE
Usage and Storage Requirements
Safe Operating Temperature Level 0 °C - 40 °C
32 °F - 104 °F
5 °C - 35 °C
41 °F - 95 °F
Safe Operating Humidity Level 20 % - 80 %
Internal Storage Temperature -20 °C - 60 °C
-4 °F - 140 °F
Asus PA27AC HP U28 4K HDR