Notice: Your browser is not supported or outdated so some features of the site might not be available.
Notice: Big Spring Sale Deal: The Samsung Odyssey OLED G80SD S32DG80 has dropped by $350 on Amazon.com. See all Monitor Big Spring Sale deals.
- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
ASUS PB277Q vs Dell U2518D
Side-by-Side Comparison
Products
ASUS PB277Q
Dell U2518D
Tested using Methodology v1.0
Updated May 29, 2023 03:07 PM
SEE PRICE
Amazon.comTested using Methodology v1.1
Updated Sep 03, 2021 02:17 AM
SEE PRICE
Amazon.com
Size27"
Pixel TypeTN
Variable Refresh RateNo
Native Resolution2560 x 1440
Max Refresh Rate75 Hz
Size25"
Pixel TypeIPS
Variable Refresh RateNo VRR
Native Resolution2560 x 1440
Max Refresh Rate60 Hz
Variants
- PB277Q (27")
- U2518D (25")
Our Verdict
ASUS PB277Q
Dell U2518D
If you'll be sitting right in front of the monitor and responsiveness is what you're after, the ASUS PB277Q is a better choice. For a monitor that will perform well in almost all uses and with HDR support, the Dell U2518D is a better choice. The PB277Q is better for gaming as it has lower input lag and faster response time. On the other hand, the U2518D has better viewing angles that make it more versatile for more uses. Also, the Dell U2518D has better gray uniformity so you won't notice any clouding when browsing the web.
Check Price
27"
PB277Q
SEE PRICE
Amazon.com25"
U2518D
SEE PRICE
Amazon.com27"
PB277Q
SEE PRICE
BestBuy.com25"
U2518D
SEE PRICE
BestBuy.com27"
PB277Q
SEE PRICE
Walmart.com25"
U2518D
SEE PRICE
Walmart.comNotice:
Two or more of the products selected have been tested with different test methodologies, so some of the results below aren't directly comparable.
Learn how our test benches and scoring system work, and read more about the latest changes to our
monitors test methodology.
Read more
Main Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
7.3
7.6
Horizontal Viewing Angle
5.2
8.2
Black Uniformity
2.9
5.9
Input Lag
9.2
8.0
Full Comparison
Design
Style
Design Picture
Size
27"
25"
Curved
No
No
Curve Radius
N/A
Not Curved
Weight (without stand)
8.8 lbs (4.0 kg)
7.7 lbs (3.5 kg)
Weight (with stand)
15.7 lbs (7.1 kg)
12.8 lbs (5.8 kg)
Stand
Stand Picture
Width
11.0" (27.9 cm)
11.5" (29.2 cm)
Depth
8.5" (21.6 cm)
7.9" (20.1 cm)
Ergonomics
8.1
8.5
Ergonomics Picture
Height Adjustment
4.7" (11.9 cm)
5.1" (13.0 cm)
Switch Portrait/Landscape
Yes
Yes, Both Ways
Swivel Range
-60° to 60°
-30° to 30°
Tilt Range
-17.5° to 5°
-22.5° to 2.5°
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.5" (1.3 cm)
0.3" (0.8 cm)
Thickness
Thickness Picture
Thickness (with stand)
6.0" (15.2 cm)
5.4" (13.7 cm)
Thickness (without stand)
2.7" (6.9 cm)
2.0" (5.1 cm)
Build Quality
7.5
7.5
Build Quality Picture
Picture Quality
Contrast
5.6
6.3
Checkerboard Picture
LCD Type
TN
IPS
Native Contrast
779 : 1
1,187 : 1
Contrast With Local Dimming
N/A
N/A
Local Dimming
0.0
0.0
Local Dimming Video
Local Dimming Video
Local Dimming
No
No
Backlight
Direct
Direct
SDR Peak Brightness
8.0
8.2
SDR Real Scene
344 cd/m²
406 cd/m²
SDR Peak 2% Window
357 cd/m²
423 cd/m²
SDR Peak 10% Window
357 cd/m²
426 cd/m²
SDR Peak 25% Window
357 cd/m²
426 cd/m²
SDR Peak 50% Window
356 cd/m²
426 cd/m²
SDR Peak 100% Window
357 cd/m²
426 cd/m²
SDR Sustained 2% Window
357 cd/m²
421 cd/m²
SDR Sustained 10% Window
356 cd/m²
424 cd/m²
SDR Sustained 25% Window
357 cd/m²
425 cd/m²
SDR Sustained 50% Window
356 cd/m²
425 cd/m²
SDR Sustained 100% Window
356 cd/m²
425 cd/m²
SDR ABL
0.000
0.000
HDR Peak Brightness
0.0
7.2
HDR Real Scene
N/A
498 cd/m²
HDR Peak 2% Window
N/A
476 cd/m²
HDR Peak 10% Window
N/A
520 cd/m²
HDR Peak 25% Window
N/A
545 cd/m²
HDR Peak 50% Window
N/A
562 cd/m²
HDR Peak 100% Window
N/A
584 cd/m²
HDR Sustained 2% Window
N/A
279 cd/m²
HDR Sustained 10% Window
N/A
304 cd/m²
HDR Sustained 25% Window
N/A
317 cd/m²
HDR Sustained 50% Window
N/A
328 cd/m²
HDR Sustained 100% Window
N/A
340 cd/m²
HDR ABL
N/A
0.012
Horizontal Viewing Angle
5.2
8.2
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
44°
Color Washout From Right
47°
Horizontal Color Shift Picture
Horizontal Hue Graph
Color Shift From Left
31°
50°
Color Shift From Right
32°
55°
Horizontal Brightness Picture
Horizontal Black Level Picture
Horizontal Lightness Graph
Brightness Loss From Left
49°
46°
Brightness Loss From Right
48°
49°
Black Level Raise From Left
24°
70°
Black Level Raise From Right
19°
70°
Curve Radius
N/A
Gamma Shift From Left
45°
Gamma Shift From Right
53°
Vertical Viewing Angle
5.8
6.6
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
34°
Color Washout From Above
34°
Vertical Color Shift Picture
Vertical Hue Graph
Color Shift From Below
9°
34°
Color Shift From Above
34°
37°
Vertical Brightness Picture
Vertical Black Level Picture
Vertical Lightness Graph
Brightness Loss From Below
13°
39°
Brightness Loss From Above
37°
39°
Black Level Raise From Below
21°
23°
Black Level Raise From Above
48°
52°
Gamma Shift From Below
33°
Gamma Shift From Above
34°
Gray Uniformity
7.7
8.6
50% Uniformity Picture
50% Std. Dev.
6.166%
3.180%
50% DSE
0.127%
0.109%
5% Uniformity Picture
5% Std. Dev.
1.095%
0.340%
5% DSE
0.069%
0.046%
Black Uniformity
2.9
5.9
Native Black Uniformity Picture
Native Std. Dev.
4.079%
2.053%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Pre Calibration
9.0
9.2
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Standard
Standard
Luminance
332 cd/m²
275 cd/m²
Luminance Settings
90
75
Contrast Setting
80
75
RGB Controls
Warm Color Temperature
100-100-100
Gamma Setting
No Gamma Setting
Color Temperature
6,669 K
6,720 K
White Balance dE
1.29
1.28
Color dE
1.58
1.15
Gamma
2.15
2.19
Post Calibration
9.4
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Standard
Custom Color
Luminance
100 cd/m²
99 cd/m²
Luminance Settings
24
17
Contrast Setting
70
75
RGB Controls
91-95-98
99-98-100
Gamma Setting
No Gamma Setting
Color Temperature
6,391 K
6,513 K
White Balance dE
0.74
0.45
Color dE
0.74
0.48
Gamma
2.18
2.18
SDR Color Gamut
8.6
8.7
Color Gamut sRGB Picture
sRGB xy
97.9%
98.1%
Color Gamut ARGB Picture
Adobe RGB xy
74.0%
76.1%
sRGB Picture Mode
Custom Color
Adobe RGB Picture Mode
Custom Color
SDR Color Volume
8.4
8.9
sRGB Color Volume ITP Picture
sRGB In ICtCp
91.3%
95.9%
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
76.1%
80.8%
sRGB Picture Mode
Custom Color
Adobe RGB Picture Mode
Custom Color
HDR Color Gamut
0.0
6.5
Wide Color Gamut
No
No
Color Gamut DCI-P3 Picture
DCI P3 xy
N/A
72.6%
Color Gamut Rec.2020 Picture
Rec. 2020 xy
N/A
56.9%
DCI P3 Picture Mode
Custom Color
Rec. 2020 Picture Mode
Custom Color
HDR Color Volume
0.0
5.9
P3 Color Volume ITP Picture
DCI-P3 In ICtCp
N/A
66.6%
2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
N/A
49.6%
DCI P3 Picture Mode
Custom Color
Rec. 2020 Picture Mode
Custom Color
Image Retention
10
10
Image Retention Picture
IR After 0 Min Recovery
0.00%
0.00%
IR After 2 Min Recovery
0.00%
0.00%
IR After 4 Min Recovery
0.00%
0.00%
IR After 6 Min Recovery
0.00%
0.00%
IR After 8 Min Recovery
0.00%
0.00%
IR After 10 Min Recovery
0.00%
0.00%
Gradient
8.4
9.4
Gradient Picture
Color Depth
8 Bit
10 Bit
Color Bleed
10
10
Color Bleed Horizontal
Pixel Row Error
0.000%
0.000%
Color Bleed Vertical
Pixel Column Error
0.000%
0.001%
Reflections
7.5
6.9
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Total Reflections
6.3%
Indirect Reflections
3.3%
Calculated Direct Reflections
3.0%
Text Clarity
8.0
ClearType On
Pixel Type
TN
IPS
ClearType Off
Pixels
Sub-Pixel Layout
RGB
Motion
Response Time @ Max Refresh Rate
10
7.7
Motion Blur Picture
Motion Blur Picture
Response Time Chart
Response Time Table
Best Overdrive Setting
60
Normal
Rise / Fall Time
2.9 ms
8.0 ms
Total Response Time
6.1 ms
15.5 ms
Overshoot Error
1.7%
Dark Rise / Fall Time
8.5 ms
Dark Total Response Time
16.7 ms
Dark Overshoot Error
3.2%
Response Time @ 60Hz
7.7
Motion Blur Picture
Response Time Table
Best Overdrive Setting
Normal
Rise / Fall Time
8.0 ms
Total Response Time
15.5 ms
Overshoot Error
1.7%
Dark Rise / Fall Time
8.5 ms
Dark Total Response Time
16.7 ms
Dark Overshoot Error
3.2%
Image Flicker
7.5
10
Backlight Picture
Flicker-Free
Yes
No
PWM Dimming Frequency
0 Hz
940 Hz
Black Frame Insertion (BFI)
No
No
BFI Picture
BFI Frequency Picture
BFI Maximum Frequency
N/A
N/A
BFI Minimum Frequency
N/A
N/A
Black Frame Insertion (BFI)
0.0
Black Frame Insertion (BFI)
No
No
BFI Picture
BFI Frequency Picture
BFI Maximum Frequency
N/A
N/A
BFI Minimum Frequency
N/A
N/A
Refresh Rate
7.1
5.9
Variable Refresh Rate
No
No VRR
Native
60 Hz
Max Refresh Rate
75 Hz
60 Hz
Factory Overclock
N/A
Variable Refresh Rate
No
No
FreeSync
No
G-SYNC
No
No
VRR Maximum
N/A
N/A
VRR Minimum
N/A
No VRR
VRR Maximum With OC
N/A
VRR Supported Connectors
N/A
No VRR
Inputs
Input Lag
9.2
8.0
Native Resolution
7.1 ms
15.8 ms
Non-Native Res @ Native Refresh
N/A
Native Resolution @ 60Hz
8.7 ms
15.8 ms
Variable Refresh Rate
N/A
N/A
Variable Refresh Rate @ 60Hz
N/A
10 Bit HDR
N/A
19.8 ms
Black Frame Insertion (BFI)
N/A
N/A
Resolution And Size
8.4
8.3
Native Resolution
2560 x 1440
2560 x 1440
Aspect Ratio
16:9
16:9
Megapixels
3.7 MP
3.7 MP
Pixel Density
109 PPI
118 PPI
Screen Diagonal
26.9"
25.0"
Screen Area
310 in²
266 in²
Inputs
Inputs 1
Inputs 2
Total Inputs
DisplayPort
1 (DP 1.2)
1 (DP 1.2)
Mini DisplayPort
No
1 (DP 1.2)
HDMI
1 (HDMI 1.4)
1 (HDMI 2.0)
DVI
1 (DVI-D, dual link)
No
VGA
1
No
DisplayPort Out
No
1 (DP 1.2)
USB
No
4 (USB 3.0)
USB C
No
No
Analog Audio Out 3.5mm
1
1
Microphone In 3.5mm
No
No
Digital Optical Audio Out
No
No
Analog Audio Out RCA
No
No
Power Supply
Internal
Internal
Features
Additional Features
RGB Illumination
No
Speakers
Yes
No
HDR10
No
Yes
Multiple Input Display
PIP + PBP
No
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Check Price
27"
PB277Q
SEE PRICE
Amazon.com25"
U2518D
SEE PRICE
Amazon.com27"
PB277Q
SEE PRICE
BestBuy.com25"
U2518D
SEE PRICE
BestBuy.com27"
PB277Q
SEE PRICE
Walmart.com25"
U2518D
SEE PRICE
Walmart.com
ASUS PB277Q
Dell U2518D
Comments
ASUS PB277Q vs Dell U2518D: Main Discussion
What do you think of these products? Let us know below.
Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.