Comparison between:
- 34" AOC U34P2C
- 34" AOC U34P2
- 27" Acer CP3271U
- 27" Dell U2720Q

Brand, series, model

Information about the brand, series, model and model aliases.

AOC U34P2CAOC U34P2Acer CP3271UDell U2720Q
Series--ConceptD CP3UltraSharp
AOC U34P2CAOC U34P2Acer CP3271UDell U2720Q
Model alias-U34P2/BSCP3271U V
CP3271UV
CP3271U Vbmiipruzx
UltraSharp U2720Q

Display

Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.

Size class34 in34 in27 in27 in
Diagonal867 mm
86.7 cm
34.1339 in
2.8445 ft
867 mm
86.7 cm
34.1339 in
2.8445 ft
685.8 mm
68.58 cm
27 in
2.25 ft
684.7 mm
68.47 cm
26.9567 in
2.2464 ft
Width799.795 mm
79.9795 cm
31.488 in
2.624 ft
799.795 mm
79.9795 cm
31.488 in
2.624 ft
596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
Height334.8 mm
33.48 cm
13.1811 in
1.0984 ft
334.8 mm
33.48 cm
13.1811 in
1.0984 ft
335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
Panel manufacturer--LG Display-
Panel typeIPSIPSIPSIPS
Panel bit depth8 bits8 bits10 bits10 bits (8 bits + FRC)
FRCNoNo-Yes
Colors16777216 colors
24 bits
16777216 colors
24 bits
1073741824 colors
30 bits
1073741824 colors
30 bits
Aspect ratio2.389:12.389:11.778:1
16:9
1.778:1
16:9
Resolution3440 x 1440 pixels3440 x 1440 pixels2560 x 1440 pixels
Quad HD (QHD) / 1440p
3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
Pixel pitch0.233 mm
0.0233 cm
0.0092 in
0.0008 ft
0.233 mm
0.0233 cm
0.0092 in
0.0008 ft
0.233 mm
0.0233 cm
0.0092 in
0.0008 ft
0.155 mm
0.0155 cm
0.0061 in
0.0005 ft
Pixel density109 ppi
43 ppcm
109 ppi
43 ppcm
109 ppi
42 ppcm
163 ppi
64 ppcm
Display area88.37 %88.37 %86.77 %92.04 %
BacklightW-LEDW-LEDW-LEDW-LED
sRGB100 %100 %-99 %
Adobe RGB (1998)---89 %
NTSC (1953)83 %83 %--
DCI P392 %92 %98 %95 %
Brightness300 cd/m²300 cd/m²350 cd/m²350 cd/m²
Peak brightness--400 cd/m²450 cd/m²
Static contrast1000 : 11000 : 11000 : 11300 : 1
Dynamic contrast50000000 : 150000000 : 1--
HDR--DisplayHDR 400DisplayHDR 400
Horizontal viewing angle178 °178 °178 °178 °
Vertical viewing angle178 °178 °178 °178 °
Minimum response time4 ms
0.0040 s
4 ms
0.0040 s
0.7 ms
0.0007 s
5 ms
0.0050 s
Average response time--1 ms
0.0010 s
8 ms
0.0080 s
Input lag---9 ms
0.0090 s
CoatingAnti-glare/Matte (3H)Anti-glare/Matte (3H)Anti-glare/MatteAnti-glare/Matte (3H)

3D

3D displays use various technologies to achieve a 3D effect. Each of these technologies has its own advantages and drawbacks.

3DNoNoNoNo

Frequencies

Information about the horizontal and vertical refresh rates/frequencies.

Horizontal frequency (digital)30 kHz - 120 kHz30 kHz - 120 kHz--
Vertical frequency (digital)48 Hz - 75 Hz48 Hz - 75 Hz48 Hz - 165 Hz60 Hz

Power supply and consumption

Information about the power supply and consumption, energy efficiency class, etc.

110V90 V - 120 V90 V - 120 V100 V - 120 V100 V - 120 V
220V220 V - 240 V220 V - 240 V220 V - 240 V220 V - 240 V
Alternating current frequency47 Hz - 63 Hz47 Hz - 63 Hz50 Hz - 60 Hz50 Hz - 60 Hz
Electric current (A)---2.5 A
Power consumption (off)0.3 W0.3 W0.3 W0.3 W
Power consumption (sleep)0.5 W0.5 W0.5 W0.3 W
Power consumption (average)46 W47 W-33 W
Power consumption (maximum)---200 W

Dimensions, weight and color

Information about the dimensions and the weight of the specific model with and without stand as well as the colors, in which it is offered to the market.

Width817.4 mm
81.74 cm
32.1811 in
2.6818 ft
817.4 mm
81.74 cm
32.1811 in
2.6818 ft
629 mm
62.9 cm
24.7638 in
2.0636 ft
611.3 mm
61.13 cm
24.0669 in
2.0056 ft
Height370.7 mm
37.07 cm
14.5945 in
1.2162 ft
370.7 mm
37.07 cm
14.5945 in
1.2162 ft
367 mm
36.7 cm
14.4488 in
1.2041 ft
356 mm
35.6 cm
14.0157 in
1.168 ft
Depth55.7 mm
5.57 cm
2.1929 in
0.1827 ft
55.7 mm
5.57 cm
2.1929 in
0.1827 ft
70 mm
7 cm
2.7559 in
0.2297 ft
49.7 mm
4.97 cm
1.9567 in
0.1631 ft
Weight6.2 kg
13.67 lbs
6.2 kg
13.67 lbs
4.5 kg
9.92 lbs
4.4 kg
9.7 lbs
Width with stand817.4 mm
81.74 cm
32.1811 in
2.6818 ft
817.4 mm
81.74 cm
32.1811 in
2.6818 ft
614 mm
61.4 cm
24.1732 in
2.0144 ft
611.3 mm
61.13 cm
24.0669 in
2.0056 ft
Height with stand485.6 mm
48.56 cm
19.1181 in
1.5932 ft
485.6 mm
48.56 cm
19.1181 in
1.5932 ft
464 mm
46.4 cm
18.2677 in
1.5223 ft
395.2 mm
39.52 cm
15.5591 in
1.2966 ft
Depth with stand275.1 mm
27.51 cm
10.8307 in
0.9026 ft
275.1 mm
27.51 cm
10.8307 in
0.9026 ft
269 mm
26.9 cm
10.5906 in
0.8825 ft
185 mm
18.5 cm
7.2835 in
0.607 ft
Weight with stand9.4 kg
20.72 lbs
9.4 kg
20.72 lbs
6.5 kg
14.33 lbs
6.6 kg
14.55 lbs
ColorsBlack and GrayBlack and GrayBlackBlack

Ergonomics

Information about the ergonomic functions - height adjustment, swivel angles, tilt angles, etc.

VESA mountYesYesYesYes
VESA interface100 x 100 mm100 x 100 mm100 x 100 mm100 x 100 mm
Removable standYesYesYesYes
Height adjustmentYesYesNoYes
Height adjustment range150 mm
15 cm
5.9055 in
0.4921 ft
150 mm
15 cm
5.9055 in
0.4921 ft
-130 mm
13 cm
5.1181 in
0.4265 ft
Landscape/portrait pivotYesYesYesYes
Left pivot0 °0 °0 °90 °
Right pivot90 °90 °90 °90 °
Left/right swivelYesNoYesYes
Left swivel175 °-180 °45 °
Right swivel175 °-180 °45 °
Forward/backward tiltYesYesYesYes
Forward tilt5 °5 °5 °5 °
Backward tilt22 °22 °35 °21 °

Audio

Information about the audio system - number and power of the built-in speakers, supported audio technologies.

Speakers2 x 5 W-2 x 2 W-
-MaxxAudio--

Camera

Many contemporary desktop monitors and smart TV sets have built-in cameras.

CameraNoNoNoNo

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity4 x USB 3.2 (Type-A; downstream)
1 x USB 3.2 (Type-C; upstream; DP Alt Mode)
2 x HDMI 2.0
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out
2 x HDMI 2.0
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out
1 x USB (Type-C; upstream)
4 x USB 3.0 (Type-A; downstream)
2 x HDMI 2.0
2 x DisplayPort 1.4
1 x 3.5 mm Audio Out
1 x USB 3.0 (downstream; BC 1.2 charging at 2A)
2 x USB 3.0 (Type-A; downstream)
1 x USB 3.0 (Type-C; 90W; DisplayPort)
1 x USB 3.0 (Type-C; downstream; 15W)
1 x HDMI 2.0 (CEC)
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out
High-bandwidth Digital Content Protection (HDCP)High-bandwidth Digital Content Protection (HDCP)-High-bandwidth Digital Content Protection (HDCP) 2.2

Features

Some additional functional features of the model.

FeaturesAMD FreeSync Technology
Clear Vision
DDC2B (DDC/CI compatible)
Dynamic Colour Boost (DCB) technology
Dynamic Contrast Ratio (DCR) technology
Flicker-free technology
HDR Mode
Low Blue Light
Picture-by-Picture
Picture-in-Picture
AMD FreeSync Technology
Clear Vision
DDC2B (DDC/CI compatible)
Dynamic Colour Boost (DCB) technology
Dynamic Contrast Ratio (DCR) technology
Flicker-free technology
HDR Mode
Low Blue Light
Picture-by-Picture
Picture-in-Picture
Adaptive-Sync technology
Flicker-free technology
Light sensor
Low Blue Light
Nano IPS
Pantone Validated
Flicker-free technology
Low Blue Light

Certificates, standards and licenses

Licenses from regulatory agencies, standards, certificates.

Certificates, standards and licensesCCC
CE
CECP
CEL
CH RoHS
cTUVus
FCC
ISO 9241-307
TUV Low Blue Light Certification
Win10
CCC
CE
CECP
CEL
CH RoHS
cTUVus
FCC
ISO 9241-307
TUV Low Blue Light Certification
Win10
-BFR-free
CEL
ENERGY STAR 6.0
EPEAT
Mercury-free
NFPA 99
PVC-free
RoHS Compliant
TCO

Operating and storage conditions

There are certain requirements for the environmental conditions, in which the display should be used and stored in order to function properly.

Operating temperature0 °C - 40 °C
32 °F - 104 °F
0 °C - 40 °C
32 °F - 104 °F
-0 °C - 40 °C
32 °F - 104 °F
Operating humidity10 % - 80 %10 % - 80 %-10 % - 80 %
Operating altitude---5000 m
16404.2 ft
Storage temperature-20 °C - 60 °C
-4 °F - 140 °F
-20 °C - 60 °C
-4 °F - 140 °F
--20 °C - 60 °C
-4 °F - 140 °F
Storage humidity0 % - 85 %0 % - 85 %-5 % - 90 %
Storage altitude---12192 m
40000 ft

Accessories

Often the packaging of desktop monitors and smart TV sets includes accessories for them.

AccessoriesHDMI cableHDMI cableDisplayPort cable
HDMI cable
USB Type-C cable
DisplayPort cable
USB Type-C to Type-C cable
USB Type-C to Type-A cable

Additional features

Information about other features.

Additional features--Anti-theft stand lock slot - KensingtonSecurity lock slot
 AOC U34P2CAOC U34P2Acer CP3271UDell U2720Q