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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Accelerated Longevity Test
    3. Build Quality
    4. Ergonomics
    5. Stand
    6. Display
    7. Controls
    8. In The Box
  5. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Brightness
    4. HDR Brightness
    5. Horizontal Viewing Angle
    6. Vertical Viewing Angle
    7. Gray Uniformity
    8. Black Uniformity
    9. Color Accuracy (Pre-Calibration)
    10. Color Accuracy (Post-Calibration)
    11. SDR Color Gamut
    12. HDR Color Gamut
    13. HDR Color Volume
    14. Text Clarity
    15. Reflections
    16. Gradient
    17. SDR Color Volume
  6. Motion
    1. Refresh Rate
    2. Variable Refresh Rate (VRR)
    3. VRR Motion Performance
    4. Refresh Rate Compliance
    5. Response Time @ 60Hz
    6. CAD @ Max Refresh Rate
    7. Response Time @ Max Refresh Rate
    8. CAD @ 120Hz
    9. Response Time @ 120Hz
    10. CAD @ 60Hz
    11. Response Time @ 60Hz
    12. Backlight Strobing (BFI)
    13. VRR Flicker
    14. Image Flicker
  7. Inputs
    1. Input Lag
    2. Resolution
    3. PS5 Compatibility
    4. Xbox Series X|S Compatibility
    5. Inputs Photos
    6. Video And Audio Ports
    7. USB
    8. macOS Compatibility
  8. Features
    1. Additional Features
    2. On-Screen Display (OSD)
  9. Comments

ASUS TUF Gaming VG27AQL1A vs Dell S2721DGF

Side-by-Side Comparison

Products

ASUS TUF Gaming VG27AQL1A
Dell S2721DGF

Tested using Methodology v2.0

Updated Aug 12, 2024 03:37 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.2

Updated May 09, 2024 07:49 PM

SEE PRICE
Walmart.com
ASUS TUF Gaming VG27AQL1A Picture
Dell S2721DGF Picture

Variants

  • TUF Gaming VG27AQL1A (27")
  • S2721DGF (27")

Our Verdict

ASUS TUF Gaming VG27AQL1A

Dell S2721DGF

The Dell S2721DGF and the ASUS TUF Gaming VG27AQL1A are two monitors that perform very similarly overall. The Dell has better ergonomics, gets brighter in SDR, has better reflection handling, and the response time is much quicker. However, the ASUS has a BFI feature, its max refresh rate is 170Hz, and it gets brighter and displays a wider color gamut in HDR.

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27"
TUF Gaming VG27AQL1A
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27"
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27"
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27"
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Notice: 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.

Main Differences for

Threshold 

0.10

Mixed Usage 

7.7
No major differences between these monitors for mixed usage. See full list of tests below.

Full Comparison

Design

Style 
 

Design Picture  

ASUS TUF Gaming VG27AQL1A Design Picture
Dell S2721DGF Design Picture

Curved 
 

No
No

Curve Radius 
 

Not Curved
Not Curved

Show text

Accelerated Longevity Test 
 

Uniformity Pictures  

Longevity Graph  

ASUS TUF Gaming VG27AQL1A Longevity Graph
Dell S2721DGF Longevity Graph

Build Quality 
 

7.5
8.0

Build Quality Picture  

ASUS TUF Gaming VG27AQL1A Build Quality Picture
Dell S2721DGF Build Quality Picture

Show text

Ergonomics 
 

9.1
9.2

Ergonomics Picture  

ASUS TUF Gaming VG27AQL1A Ergonomics Picture
Dell S2721DGF Ergonomics Picture

Back Picture  

ASUS TUF Gaming VG27AQL1A Back Picture
Dell S2721DGF Back Picture

Height Adjustment 
 

5.0" (12.8 cm)
5.1" (13.0 cm)

Min Height To Top Of Panel 
 

15.6" (39.6 cm)

Tilt Range 
 

-20° to 5°
-20° to 5°

Rotate Portrait/Landscape 
 

Yes, Both Ways
Yes, Both Ways

Swivel Range 
 

-20° to 20°
-45° to 45°

Wall Mount 
 

VESA 100x100
VESA 100x100

Show text

Stand 
 

Stand Picture  

ASUS TUF Gaming VG27AQL1A Stand Picture
Dell S2721DGF Stand Picture

Thickness Picture  

ASUS TUF Gaming VG27AQL1A Thickness Picture
Dell S2721DGF Thickness Picture

Base Width 
 

21.0" (53.4 cm)
10.9" (27.6 cm)

Base Depth 
 

8.6" (21.8 cm)
7.9" (20.0 cm)

Thickness (With Display) 
 

4.8" (12.2 cm)
6.3" (16.0 cm)

Weight (With Display) 
 

14.1 lbs (6.4 kg)
14.6 lbs (6.6 kg)

Show text

Display 
 

Display Picture  

ASUS TUF Gaming VG27AQL1A Display Picture
Dell S2721DGF Display Picture

Size 
 

27"
27"

Housing Width 
 

24.2" (61.4 cm)
24.1" (61.2 cm)

Housing Height 
 

14.4" (36.7 cm)
14.2" (36.1 cm)

Thickness (Without Stand) 
 

2.5" (6.4 cm)
2.6" (6.5 cm)

Weight (Without Stand) 
 

9.5 lbs (4.3 kg)
9.9 lbs (4.5 kg)

Borders Size (Bezels)  
 

0.4" (0.9 cm)
0.3" (0.7 cm)

Controls 
 

Controls Picture  

ASUS TUF Gaming VG27AQL1A Controls Picture
Dell S2721DGF Controls Picture

Show text

In The Box 
 

In The Box Picture  

ASUS TUF Gaming VG27AQL1A In The Box Picture
Dell S2721DGF In The Box Picture

Power Supply 
 

External Brick
Internal

Show text

Picture Quality

Contrast 
 

6.0
5.8

Checkerboard Picture  

ASUS TUF Gaming VG27AQL1A Checkerboard Picture
Dell S2721DGF Checkerboard Picture

Native Contrast 
 

1,016 : 1
882 : 1

Contrast With Local Dimming 
 

1,091 : 1
971 : 1

Show text

Local Dimming 
 

1.0
1.0

Local Dimming Video  

Local Dimming 
 

Yes
Yes

Backlight 
 

Edge
Edge

Show text

SDR Brightness 
 

7.7
8.0

Real Scene 
 

318 cd/m²
341 cd/m²

Peak 2% Window 
 

310 cd/m²
364 cd/m²

Peak 10% Window 
 

331 cd/m²
367 cd/m²

Peak 25% Window 
 

331 cd/m²
368 cd/m²

Peak 50% Window 
 

331 cd/m²
368 cd/m²

Peak 100% Window 
 

331 cd/m²
368 cd/m²

Sustained 2% Window 
 

309 cd/m²
364 cd/m²

Sustained 10% Window 
 

330 cd/m²
367 cd/m²

Sustained 25% Window 
 

330 cd/m²
368 cd/m²

Sustained 50% Window 
 

330 cd/m²
368 cd/m²

Sustained 100% Window 
 

330 cd/m²
368 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.004
0.001

Minimum Brightness 
 

76 cd/m²
35 cd/m²

Show text

HDR Brightness 
 

7.1
6.6

EOTF  

ASUS TUF Gaming VG27AQL1A EOTF
Dell S2721DGF EOTF

VESA DisplayHDR Certification 
 

DisplayHDR 400 - 1.0/1.1
DisplayHDR 400 - 1.0/1.1

Real Scene 
 

459 cd/m²
328 cd/m²

Peak 2% Window 
 

444 cd/m²
481 cd/m²

Peak 10% Window 
 

475 cd/m²
485 cd/m²

Peak 25% Window 
 

476 cd/m²
486 cd/m²

Peak 50% Window 
 

478 cd/m²
487 cd/m²

Peak 100% Window 
 

477 cd/m²
487 cd/m²

Sustained 2% Window 
 

441 cd/m²
480 cd/m²

Sustained 10% Window 
 

471 cd/m²
484 cd/m²

Sustained 25% Window 
 

472 cd/m²
484 cd/m²

Sustained 50% Window 
 

477 cd/m²
486 cd/m²

Sustained 100% Window 
 

477 cd/m²
486 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.005
0.003

Show text

Horizontal Viewing Angle 
 

8.3
8.5

Horizontal Viewing Angle Video  

Horizontal Chroma Graph  

ASUS TUF Gaming VG27AQL1A Horizontal Chroma Graph
Dell S2721DGF Horizontal Chroma Graph

Color Washout From Left 
 

47°
46°

Color Washout From Right 
 

45°
47°

Horizontal Hue Graph  

ASUS TUF Gaming VG27AQL1A Horizontal Hue Graph
Dell S2721DGF Horizontal Hue Graph

Color Shift From Left 
 

51°
52°

Color Shift From Right 
 

62°
55°

Horizontal Lightness Graph  

ASUS TUF Gaming VG27AQL1A Horizontal Lightness Graph
Dell S2721DGF Horizontal Lightness Graph

Brightness Loss From Left 
 

46°
48°

Brightness Loss From Right 
 

46°
49°

Black Level Raise From Left 
 

70°
70°

Black Level Raise From Right 
 

70°
70°

Gamma Shift From Left 
 

55°
60°

Gamma Shift From Right 
 

53°
61°

Show text

Vertical Viewing Angle 
 

6.9
6.2

Vertical Viewing Angle Video  

Vertical Chroma Graph  

ASUS TUF Gaming VG27AQL1A Vertical Chroma Graph
Dell S2721DGF Vertical Chroma Graph

Color Washout From Below 
 

31°
32°

Color Washout From Above 
 

28°
33°

Vertical Hue Graph  

ASUS TUF Gaming VG27AQL1A Vertical Hue Graph
Dell S2721DGF Vertical Hue Graph

Color Shift From Below 
 

35°
31°

Color Shift From Above 
 

46°
34°

Vertical Lightness Graph  

ASUS TUF Gaming VG27AQL1A Vertical Lightness Graph
Dell S2721DGF Vertical Lightness Graph

Brightness Loss From Below 
 

35°
36°

Brightness Loss From Above 
 

34°
37°

Black Level Raise From Below 
 

70°
32°

Black Level Raise From Above 
 

70°
22°

Gamma Shift From Below 
 

31°
30°

Gamma Shift From Above 
 

31°
30°

Show text

Gray Uniformity 
 

8.5
8.0

50% Uniformity Picture  

ASUS TUF Gaming VG27AQL1A 50% Uniformity Picture
Dell S2721DGF 50% Uniformity Picture

50% Std. Dev. 
 

2.222%
3.975%

50% DSE 
 

0.124%
0.132%

Show text

Black Uniformity 
 

5.5
3.9

Native Black Uniformity Picture  

ASUS TUF Gaming VG27AQL1A Native Black Uniformity Picture
Dell S2721DGF Native Black Uniformity Picture

Native Std. Dev. 
 

1.759%
2.946%

Black Uniformity Picture With Local Dimming  

ASUS TUF Gaming VG27AQL1A Black Uniformity Picture With Local Dimming
Dell S2721DGF Black Uniformity Picture With Local Dimming

Std. Dev. w/ L.D. 
 

5.842%
7.261%

Show text

Color Accuracy (Pre-Calibration) 
 

6.4
5.9

Pre Calibration Picture  

ASUS TUF Gaming VG27AQL1A Pre Calibration Picture
Dell S2721DGF Pre Calibration Picture

Pre Gamma Curve Picture  

ASUS TUF Gaming VG27AQL1A Pre Gamma Curve Picture
Dell S2721DGF Pre Gamma Curve Picture

Pre Color Picture  

ASUS TUF Gaming VG27AQL1A Pre Color Picture
Dell S2721DGF Pre Color Picture

Picture Mode 
 

sRGB
Standard

sRGB Gamut Area xy 
 

132.3%
137.7%

White Balance dE (Avg.) 
 

2.29
3.43

Color Temperature (Avg.) 
 

6,307 K
6,929 K

Gamma (Avg.) 
 

2.19
2.13

Color dE (Avg.) 
 

3.45
3.55

Contrast Setting 
 

N/A
75

RGB Settings 
 

Locked
Default

Gamma Setting 
 

No Gamma Setting
No Gamma Setting

Brightness Setting 
 

N/A
75

Measured Brightness 
 

196 cd/m²
223 cd/m²

Brightness Locked 
 

Yes
No

Show text

Color Accuracy (Post-Calibration) 
 

9.7
9.8

Post Calibration Picture  

ASUS TUF Gaming VG27AQL1A Post Calibration Picture
Dell S2721DGF Post Calibration Picture

Post Gamma Curve Picture  

ASUS TUF Gaming VG27AQL1A Post Gamma Curve Picture
Dell S2721DGF Post Gamma Curve Picture

Post Color Picture  

ASUS TUF Gaming VG27AQL1A Post Color Picture
Dell S2721DGF Post Color Picture

Picture Mode 
 

Racing Mode
Custom Color

sRGB Gamut Area xy 
 

100.7%
100.7%

White Balance dE (Avg.) 
 

0.67
0.54

Color Temperature (Avg.) 
 

6,564 K
6,504 K

Gamma (Avg.) 
 

2.19
2.17

Color dE (Avg.) 
 

0.47
0.34

Contrast Setting 
 

79
73

RGB Settings 
 

96-100-98
100-96-97

Gamma Setting 
 

No Gamma Setting
No Gamma Setting

Brightness Setting 
 

7
30

Measured Brightness 
 

100 cd/m²
99 cd/m²

ICC Profile 
 

Show text

SDR Color Gamut 
 

9.6
9.4

sRGB Color Gamut Picture  

ASUS TUF Gaming VG27AQL1A sRGB Color Gamut Picture
Dell S2721DGF sRGB Color Gamut Picture

sRGB Coverage xy 
 

99.6%
99.6%

sRGB Picture Mode 
 

Racing
Custom Color

Adobe RGB Color Gamut Picture  

ASUS TUF Gaming VG27AQL1A Adobe RGB Color Gamut Picture
Dell S2721DGF Adobe RGB Color Gamut Picture

Adobe RGB Coverage xy 
 

90.2%
84.5%

Adobe RGB Picture Mode 
 

Racing
Custom Color

Show text

HDR Color Gamut 
 

7.5
9.1

Wide Color Gamut 
 

Yes
Yes

DCI-P3 Color Gamut Picture  

ASUS TUF Gaming VG27AQL1A DCI-P3 Color Gamut Picture
Dell S2721DGF DCI-P3 Color Gamut Picture

DCI-P3 Coverage xy 
 

86.5%
97.2%

DCI-P3 Picture Mode 
 

Asus Gaming HDR
Desktop

Rec. 2020 Color Gamut Picture  

ASUS TUF Gaming VG27AQL1A Rec. 2020 Color Gamut Picture
Dell S2721DGF Rec. 2020 Color Gamut Picture

Rec. 2020 Coverage xy 
 

69.7%
72.8%

Rec. 2020 Picture Mode 
 

Asus Gaming HDR
Desktop

Show text

HDR Color Volume 
 

7.7
8.8

DCI-P3 Color Volume ITP Picture  

ASUS TUF Gaming VG27AQL1A DCI-P3 Color Volume ITP Picture
Dell S2721DGF DCI-P3 Color Volume ITP Picture

1,000 cd/m² DCI-P3 Coverage ICtCp 
 

69.6%
89.8%

DCI-P3 Picture Mode 
 

Asus Gaming HDR
Desktop

Rec. 2020 Color Volume ITP Picture  

ASUS TUF Gaming VG27AQL1A Rec. 2020 Color Volume ITP Picture
Dell S2721DGF Rec. 2020 Color Volume ITP Picture

10,000 cd/m² Rec. 2020 Coverage ICtCp 
 

32.2%
71.0%

Rec. 2020 Picture Mode 
 

Asus Gaming HDR
Desktop

Show text

Text Clarity 
 

7.0
7.5

ClearType On  

ASUS TUF Gaming VG27AQL1A ClearType On
Dell S2721DGF ClearType On

ClearType Off  

ASUS TUF Gaming VG27AQL1A ClearType Off
Dell S2721DGF ClearType Off

Pixel Type 
 

IPS
IPS

Pixels  

ASUS TUF Gaming VG27AQL1A Pixels
Dell S2721DGF Pixels

Subpixel Layout 
 

RGB
RGB

Show text

Reflections 
 

7.5
8.1

Average Room  

ASUS TUF Gaming VG27AQL1A Average Room
Dell S2721DGF Average Room

Average Room Off Picture  

ASUS TUF Gaming VG27AQL1A Average Room Off Picture
Dell S2721DGF Average Room Off Picture

Bright Room Off Picture  

ASUS TUF Gaming VG27AQL1A Bright Room Off Picture
Dell S2721DGF Bright Room Off Picture

Screen Finish 
 

Matte
Matte

Total Reflections 
 

5.4%
4.4%

Indirect Reflections 
 

2.8%
3.0%

Calculated Direct Reflections 
 

2.4%
1.5%

Show text

Gradient 
 

9.8
9.7

Gradient Picture  

ASUS TUF Gaming VG27AQL1A Gradient Picture
Dell S2721DGF Gradient Picture

Color Depth 
 

10 Bit
10 Bit

Show text

SDR Color Volume 
 

9.6

sRGB Color Volume ITP Picture  

Dell S2721DGF sRGB Color Volume ITP Picture

sRGB In ICtCp 
 

97.5%

sRGB Picture Mode 
 

Custom Color

Adobe RGB Color Volume ITP Picture  

Dell S2721DGF Adobe RGB Color Volume ITP Picture

Adobe RGB In ICtCp 
 

89.5%

Adobe RGB Picture Mode 
 

Custom Color

Show text

Motion

Refresh Rate 
 

7.6
8.5

Native Refresh Rate 
 

144 Hz
165 Hz

Max Refresh Rate 
 

170 Hz
165 Hz

Max Refresh Rate Over DP 
 

170 Hz
165 Hz

Max Refresh Rate Over HDMI 
 

144 Hz
144 Hz

Max Refresh Rate Over DP @ 10-bit 
 

120 Hz
165 Hz

Max Refresh Rate Over HDMI @ 10-Bit 
 

60 Hz
60 Hz

Show text

Variable Refresh Rate (VRR) 
 

Variable Refresh Rate 
 

Yes
Yes

FreeSync 
 

Yes
Yes

G-SYNC 
 

Compatible (NVIDIA Certified)
Compatible (NVIDIA Certified)

VRR Maximum 
 

170 Hz
165 Hz

VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR Supported Connectors 
 

DisplayPort, HDMI
DisplayPort, HDMI

Show text

VRR Motion Performance 
 

6.1

Pursuit Photo VRR  

ASUS TUF Gaming VG27AQL1A Pursuit Photo VRR

OD Mode CAD Comparison  

See details on graph tool

Recommended VRR OD Setting 
 

60

Variable Overdrive Advertised 
 

No

Avg. CAD 
 

277

Best CAD 
 

237

Worst CAD 
 

419

Show text

Refresh Rate Compliance 
 

5.2

Fast GTG Sequence  

See details on graph tool

VRR Compliance  

See details on graph tool

Compliance @ Max Hz 
 

30%

Compliance @ 120 FPS 
 

44%

Compliance @ 60 FPS 
 

58%

Show text

Response Time @ 60Hz 
 

8.0

Motion Blur Picture  

Dell S2721DGF Motion Blur Picture

Response Time Table  

ASUS TUF Gaming VG27AQL1A Response Time Table
Dell S2721DGF Response Time Table

Recommended Overdrive Setting 
 

20
Fast

Rise / Fall Time 
 

10.9 ms
4.8 ms

Total Response Time 
 

15.2 ms
11.6 ms

Overshoot Error 
 

4 RGB
1.0%

Worst 3 Rise / Fall Time 
 

16.2 ms
6.5 ms

Worst 3 Total Response Time 
 

27.8 ms
20.2 ms

Worst 3 Overshoot Error 
 

18 RGB
5.3%

Show text

CAD @ Max Refresh Rate 
 

6.5

Pursuit Photo At Max Refresh  

ASUS TUF Gaming VG27AQL1A Pursuit Photo At Max Refresh
Dell S2721DGF Pursuit Photo At Max Refresh

CAD Heatmap At Max Refresh  

ASUS TUF Gaming VG27AQL1A CAD Heatmap At Max Refresh
Dell S2721DGF CAD Heatmap At Max Refresh

OD Transition Max Refresh Rate 
 

od-transition-max-refresh-rate-0-0-31
OD 0
0 to 31

Recommended Overdrive Setting 
 

80

Avg. CAD 
 

227

Best 10% CAD 
 

115

Worst 10% CAD 
 

446

Show text

Response Time @ Max Refresh Rate 
 

First Response Time 
 

9.5 ms
3.5 ms

Total Response Time 
 

10.4 ms
6.3 ms

Recommended Overdrive Setting 
 

80
Extreme

Motion Blur Picture  

ASUS TUF Gaming VG27AQL1A Motion Blur Picture
Dell S2721DGF Motion Blur Picture

RGB Overshoot 
 

1 RGB
1.9%

Worst 10% RGB Overshoot 
 

12 RGB
14.7%

Worst 10% First Response Time 
 

23.0 ms
4.2 ms

Worst 10% Total Response Time 
 

23.0 ms
10.6 ms

Heatmap First Response  

ASUS TUF Gaming VG27AQL1A Heatmap First Response

Heatmap Total Response  

ASUS TUF Gaming VG27AQL1A Heatmap Total Response

Heatmap RGB Overshoot  

ASUS TUF Gaming VG27AQL1A Heatmap RGB Overshoot

Response Time Table  

ASUS TUF Gaming VG27AQL1A Response Time Table
Dell S2721DGF Response Time Table

Show text

CAD @ 120Hz 
 

6.5

Pursuit Photo 120Hz  

ASUS TUF Gaming VG27AQL1A Pursuit Photo 120Hz
Dell S2721DGF Pursuit Photo 120Hz

CAD Heatmap 120Hz  

ASUS TUF Gaming VG27AQL1A CAD Heatmap 120Hz
Dell S2721DGF CAD Heatmap 120Hz

OD Transition 120Hz 
 

od-transition-120-0-0-31
OD 0
0 to 31

Recommended Overdrive Setting 
 

60

Avg. CAD 
 

235

Best 10% CAD 
 

126

Worst 10% CAD 
 

425

Show text

Response Time @ 120Hz 
 

Worst 10% First Response Time 
 

16.9 ms
5.4 ms

RGB Overshoot 
 

4 RGB
0.6%

Total Response Time 
 

10.3 ms
7.4 ms

First Response Time 
 

7.4 ms
4.2 ms

Recommended Overdrive Setting 
 

60
Super Fast

Worst 10% Total Response Time 
 

17.2 ms
10.8 ms

Worst 10% RGB Overshoot 
 

14 RGB
4.8%

120Hz First Response Heatmap  

ASUS TUF Gaming VG27AQL1A 120Hz First Response Heatmap

120Hz Total Response Heatmap  

ASUS TUF Gaming VG27AQL1A 120Hz Total Response Heatmap

120Hz Heatmap RGB Overshoot  

ASUS TUF Gaming VG27AQL1A 120Hz Heatmap RGB Overshoot

Motion Blur Picture  

ASUS TUF Gaming VG27AQL1A Motion Blur Picture
Dell S2721DGF Motion Blur Picture

Response Time Table  

ASUS TUF Gaming VG27AQL1A Response Time Table
Dell S2721DGF Response Time Table

Show text

CAD @ 60Hz 
 

5.7

Pursuit Photo 60Hz  

ASUS TUF Gaming VG27AQL1A Pursuit Photo 60Hz
Dell S2721DGF Pursuit Photo 60Hz

CAD Heatmap 60Hz  

ASUS TUF Gaming VG27AQL1A CAD Heatmap 60Hz

OD Transition 60Hz 
 

od-transition-60-0-0-31
OD 0
0 to 31

Recommended Overdrive Setting 
 

20

Avg. CAD 
 

316

Best 10% CAD 
 

158

Worst 10% CAD 
 

479

Show text

Response Time @ 60Hz 
 

Recommended Overdrive Setting 
 

20
Fast

First Response Time 
 

10.9 ms
4.8 ms

Total Response Time 
 

15.2 ms
11.6 ms

RGB Overshoot 
 

4 RGB
1.0%

Worst 10% Total Response Time 
 

27.8 ms
20.2 ms

Worst 10% First Response Time 
 

16.2 ms
6.5 ms

Worst 10% RGB Overshoot 
 

18 RGB
5.3%

60Hz First Response Heatmap  

ASUS TUF Gaming VG27AQL1A 60Hz First Response Heatmap

60Hz Total Response Heatmap  

ASUS TUF Gaming VG27AQL1A 60Hz Total Response Heatmap

60Hz RGB Overshoot Heatmap  

ASUS TUF Gaming VG27AQL1A 60Hz RGB Overshoot Heatmap

Show text

Backlight Strobing (BFI) 
 

Backlight Strobing Picture  

ASUS TUF Gaming VG27AQL1A Backlight Strobing Picture
Dell S2721DGF Backlight Strobing Picture

Backlight Strobing Frequency Picture  

ASUS TUF Gaming VG27AQL1A Backlight Strobing Frequency Picture
Dell S2721DGF Backlight Strobing Frequency Picture

Backlight Strobing (BFI) 
 

Yes
No BFI

Maximum Frequency 
 

170 Hz
N/A

Minimum Frequency 
 

80 Hz
N/A

Longest Pulse Width Brightness 
 

228 cd/m²
N/A

Shortest Pulse Width Brightness 
 

228 cd/m²
N/A

Pulse Width Control 
 

No
No BFI

Pulse Phase Control 
 

No
No BFI

Pulse Amplitude Control 
 

No
No BFI

VRR At The Same Time 
 

Yes
No BFI

Show text

VRR Flicker 
 

9.0

VRR Flicker Video  

VRR Flicker Graph  

ASUS TUF Gaming VG27AQL1A VRR Flicker Graph

Dark Gray Flicker 
 

0.9 RGB

Middle Gray Flicker 
 

0.6 RGB

Light Gray Flicker 
 

0.4 RGB

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Image Flicker 
 

10
10

Backlight Picture  

ASUS TUF Gaming VG27AQL1A Backlight Picture
Dell S2721DGF Backlight Picture

Flicker-Free 
 

Yes
Yes

PWM Dimming Frequency 
 

0 Hz
>1000 Hz

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Inputs

Input Lag 
 

9.0
9.0

Native Resolution @ Max Hz 
 

3.3 ms
3.7 ms

Native Resolution @ 120Hz 
 

4.8 ms
4.8 ms

Native Resolution @ 60Hz 
 

8.6 ms
11.1 ms

Backlight Strobing (BFI) 
 

3.9 ms
N/A

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Resolution 
 

7.5
8.0

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
109 PPI

Measured Screen Diagonal 
 

27.0"

Screen Area 
 

310 in²

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PS5 Compatibility 
 

4.9
5.0

PS5 Compatibility Photo  

ASUS TUF Gaming VG27AQL1A PS5 Compatibility Photo
Dell S2721DGF PS5 Compatibility Photo

PS5 Compatibility Table  

ASUS TUF Gaming VG27AQL1A PS5 Compatibility Table

4k @ 120Hz 
 

No
No

4k @ 60Hz 
 

Yes
No

1440p @ 120Hz 
 

Yes
Yes

1440p @ 60Hz 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

1080p @ 60Hz 
 

Yes
Yes

HDR 
 

Yes

VRR 
 

No

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Xbox Series X|S Compatibility 
 

7.1
5.8

XSX Compatibility Photo  

ASUS TUF Gaming VG27AQL1A XSX Compatibility Photo
Dell S2721DGF XSX Compatibility Photo

XSX Compatibility Table  

ASUS TUF Gaming VG27AQL1A XSX Compatibility Table

4k @ 120Hz 
 

No
No

4k @ 60Hz 
 

Yes
No

1440p @ 120Hz 
 

Yes
Yes

1440p @ 60Hz 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

1080p @ 60Hz 
 

Yes
Yes

HDR 
 

No

VRR 
 

Yes

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Inputs Photos  

Inputs 1  

ASUS TUF Gaming VG27AQL1A Inputs 1
Dell S2721DGF Inputs 1

Inputs 2  

ASUS TUF Gaming VG27AQL1A Inputs 2
Dell S2721DGF Inputs 2

Video And Audio Ports 
 

DisplayPort 
 

1 (DP 1.2)
1 (DP 1.4)

Mini DisplayPort 
 

No
No

HDMI 
 

2 (HDMI 2.0)
2 (HDMI 2.0)

HDMI 2.1 Rated Speed 
 

No HDMI 2.1
No HDMI 2.1

DVI 
 

No
No

VGA 
 

No
No

Daisy Chaining 
 

No
No

3.5mm Audio Out 
 

1
2

HDR10 
 

Yes
Yes

3.5mm Audio In 
 

No
No

3.5mm Microphone In 
 

No
No

USB 
 

USB-A Ports 
 

3 (2x USB, 1x Service Port Only)
4

USB-A Rated Speed 
 

5Gbps (USB 3.2 Gen 1)
5Gbps (USB 3.2 Gen 1)

USB-B Upstream Port 
 

Yes
Yes

USB-C Ports 
 

0
0

USB-C Upstream 
 

No USB-C Ports
No USB-C Ports

USB-C Rated Speed 
 

No USB-C Ports
No USB-C Ports

USB-C Power Delivery 
 

No USB-C Ports
No USB-C Ports

USB-C DisplayPort Alt Mode 
 

No USB-C Ports
No USB-C Ports

Thunderbolt 
 

No
No

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macOS Compatibility 
 

macOS Screenshot  

ASUS TUF Gaming VG27AQL1A macOS Screenshot
Dell S2721DGF macOS Screenshot

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Features

Additional Features 
 

Speakers 
 

Yes
No

RGB Illumination 
 

No
Fixed (On/Off)

Multiple Input Display 
 

No
No

KVM Switch 
 

No
No

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On-Screen Display (OSD) 
 

OSD Picture  

ASUS TUF Gaming VG27AQL1A OSD Picture
Dell S2721DGF OSD Picture

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ASUS TUF Gaming VG27AQL1A

Dell S2721DGF

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