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Compare HP M34d vs Acer XZ272 vs Acer ED270U

Connectivity

Ports
1x USB 3.2 (Type-C; Gen 1; upstream; 65W), 1x HDMI 2.0, 1x 3.5 mm Audio Out, 1x DisplayPort 1.2, 1x USB 3.0 (Type-B; upstream), 4x USB 3.2 (Type-A; Gen 1; downstream)
1x DisplayPort 1.2 (a), 1x 3.5 mm Audio Out, 1x HDMI 1.4, 1x HDMI 2.0
1x 3.5 mm Audio In, 1x 3.5 mm Audio Out, 2x HDMI 1.4, 1x DisplayPort 1.2

Construction

Adjustment | Height
100 mm / 3.937 in
120 mm / 4.7244 in
N/A
Adjustment | Pivot
N/A
N/A
N/A
Adjustment | Swivel
N/A
-180° ~ 180°
N/A
Adjustment | Tilt
-5° ~ 21°
-5° ~ 25°
-5° ~ 20°
Camera
No
No
No
Colors
Black
Black
Black
Form Factor
Curved monitor
Curved monitor
Curved monitor
Speakers
2x 3W
2x 3W
2x 2W
VESA Mount
100 x 100 mm
100 x 100 mm
75 x 75 mm

Dimensions

Bezels
89.59% screen-to-body ratio
91.01% screen-to-body ratio
101.74% screen-to-body ratio
Size | Depth
4.41 in / 112.1 mm w/o stand, 9.25 in / 234.9 mm w/ stand
2.95 in / 75 mm w/o stand, 9.21 in / 234 mm w/ stand
2.94 in / 74.6 mm w/o stand, 7.71 in / 195.9 mm w/ stand
Size | Height
14.44 in / 366.9 mm w/o stand, 16.46 in / 418 mm w/ stand
14.21 in / 361 mm w/o stand, 17.48 in / 444 mm w/ stand
12.7 in / 322.5 mm w/o stand, 17.57 in / 446.3 mm w/ stand
Size | Width
31.87 in / 809.4 mm
24.09 in / 612 mm
24.04 in / 610.5 mm
Weight
7.85 kg / 17 lbs w/o stand , 10.5 kg / 23 lbs w/ stand
3.6 kg / 8 lbs w/o stand , 5.2 kg / 11 lbs w/ stand
3.3 kg / 7 lbs w/o stand , 3.8 kg / 8 lbs w/ stand

Display

Aspect Ratio
21:9
16:9
16:9
Brightness
250 nits / 300 nits (peak)
400 nits
250 nits
Contrast Ratio
3500:1 (static), 10000000:1 (dynamic)
3000:1 (static), 100000000:1 (dynamic)
4000:1 (static), 100000000:1 (dynamic)
Display Backlight
W-LED
W-LED
W-LED
Display Color Depth
8 bits, 16777216 colors
8 bits, 16777216 colors
8 bits, 16777216 colors
Display Curvature
1500R
1500R
1500R
Display Diagonal
34" (34 in / 863.6 mm)
27" (27 in / 685.8 mm)
27" (27 in / 685.8 mm)
Display Type
VA, Anti-glare/Matte (3H)
VA, Anti-glare/Matte (3H)
VA, Anti-glare/Matte (3H)
Gamut
72% NTSC, 95% sRGB
72% NTSC
Pixel Density
109 ppi
81 ppi
109 ppi
Pixel Pitch
0.232 mm
0.311 mm
0.233 mm
Refresh Rate
48 Hz ~ 100 Hz
48 Hz ~ 165 Hz
48 Hz ~ 165 Hz
Resolution
UW-QHD (3440x1440)
FHD (1920x1080)
QHD (2560x1440)
Response Time
5 ms (min)
5 ms (min)
Viewing Angle
178° H / 178° V
178° H / 178° V
178° H / 178° V

Function

HDR
DisplayHDR 400, HDR
Licenses
BIS, CB, CCC, CE, CEL, cTUVus, EAC, Energy Star, EPA, EPEAT, FCC, GS Mark, ISO 9241-307, KC/KCC, NOM, RCM, TCO Certified, TÜV Rheinland Low Blue Light Certified, VCII, WEEE
ENERGY STAR, TCO Displays
CE, ISO9241-307 class II, MPR II, TÜV GS
Operating Humidity
20 % ~ 80 %
Operating Temperature
5 °C ~ 35 °C , 41 °F ~ 95 °F
Variable Framerate
AMD FreeSync
AMD FreeSync
Video
KVM Switch, Low Blue Light, 3-sided Micro-Edge design, Flicker-free technology
DDC/CI, Flicker-free technology, Low Blue Light, Adaptive Contrast Management (ACM)
Black Boost, Flicker-free technology, ZeroFrame Design, Low Blue Light, ComfyView, Adaptive Contrast Management (ACM), Adaptive-Sync technology

Performance

Energy Efficiency
G
A
Power Consumption
48 W (average) / 190 W (max) / 0.3 W (sleep)
32 W (average) / 34 W (max) / 0.5 W (sleep) / 0.5 W (off)
30 W (average) / 36 W (max) / 0.4 W (sleep) / 0.3 W (off)

Production

Accessory
DisplayPort cable, HDMI cable, USB Type-C cable
DisplayPort cable (optional), HDMI cable (optional)
DisplayPort cable, HDMI cable
Debut
2021
2020
2020

Reviews

Neofiliac score
41%
72%
33%
Pros
  • Ultra-wide form factor
  • 1500 curvature
  • Stand with tilt and height adjustments
  • High 3500:1 contrast ratio
  • Build-in speakers included
  • DisplayHDR 400, HDR
  • 1500R curvature
  • Stand with tilt, swivel, and height adjustments
  • High 3000:1 contrast ratio
  • High 91.01 % screen-to-body ratio
  • Build-in speakers included
  • 1500R curvature
  • High 4000:1 contrast ratio
  • High 101.74 % screen-to-body ratio
  • Build-in speakers included
Cons
  • No publicized HDR support
  • 8-bit display panel
  • Display panel not very bright
  • 8-bit display panel
  • No publicized HDR support
  • Only tilt adjustment
  • 8-bit display panel
  • Display panel not very bright

Price

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