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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Stand
    3. Ergonomics
    4. Back
    5. Borders
    6. Thickness
    7. Build Quality
  5. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Horizontal Viewing Angle
    6. Vertical Viewing Angle
    7. Gray Uniformity
    8. Black Uniformity
    9. Pre Calibration
    10. Post Calibration
    11. SDR Color Gamut
    12. SDR Color Volume
    13. HDR Color Gamut
    14. HDR Color Volume
    15. Image Retention
    16. Gradient
    17. Color Bleed
    18. Reflections
    19. Text Clarity
  6. Motion
    1. Response Time @ Max Refresh Rate
    2. Response Time @ 60Hz
    3. Image Flicker
    4. Black Frame Insertion (BFI)
    5. Refresh Rate
  7. Inputs
    1. Input Lag
    2. Resolution And Size
    3. Inputs
    4. Total Inputs
  8. Features
    1. Additional Features
    2. On-Screen Display (OSD)
    3. Controls
    4. In The Box
  9. Comments

AOC AGON AG271QX vs Dell S2719DGF

Side-by-Side Comparison

Products

AOC AGON AG271QX
Dell S2719DGF

Tested using Methodology v1.0

Updated Oct 05, 2022 07:09 PM

Amazon.com

Tested using Methodology v1.1

Updated May 24, 2024 02:05 PM

SEE PRICE
Amazon.com
AOC AGON AG271QX Picture
Dell S2719DGF Picture

Variants

  • AG271QX (27")
  • S2719DGF (27")

Our Verdict

AOC AGON AG271QX

Dell S2719DGF

The AOC AGON AG271QX is a bit better than the Dell S2719DGF. The AOC AGON AG271QX has much better black uniformity and thus less backlight bleed in very dark scenes in a dark room. The Dell S2719DGF, on the other hand, has slightly better ergonomics which can be helpful depending on your setup.

0

Check Price

27"
AG271QX
B&H
27"
S2719DGF
B&H

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 

7.5
7.2

Black Uniformity 
 

6.1
0.0

Full Comparison

Design

Style  

Design Picture  

AOC AGON AG271QX Design Picture
Dell S2719DGF Design Picture

Size  

27"
27"

Curved  

No
No

Curve Radius  

N/A
Not Curved

Weight (without stand) 
 

8.6 lbs (3.9 kg)
9.5 lbs (4.3 kg)

Weight (with stand) 
 

14.6 lbs (6.6 kg)
13.4 lbs (6.1 kg)

Show text

Stand  

Stand Picture  

AOC AGON AG271QX Stand Picture
Dell S2719DGF Stand Picture

Width 
 

20.6" (52.3 cm)
9.6" (24.4 cm)

Depth 
 

8.6" (21.8 cm)
7.2" (18.3 cm)

Show text

Ergonomics 
 

7.6
8.5

Ergonomics Picture  

AOC AGON AG271QX Ergonomics Picture
Dell S2719DGF Ergonomics Picture

Height Adjustment 
 

5.1" (13.0 cm)
5.0" (12.7 cm)

Switch Portrait/Landscape  

Yes
Yes, Both Ways

Swivel Range  

-20° to 20°
-45° to 45°

Tilt Range  

-20° to 2.5°
-20° to 5°

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Back  

Back Picture  

AOC AGON AG271QX Back Picture
Dell S2719DGF Back Picture

Wall Mount  

VESA 100x100
VESA 100x100

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Borders  

Borders Picture  

AOC AGON AG271QX Borders Picture
Dell S2719DGF Borders Picture

Borders 
 

0.6" (1.5 cm)
0.3" (0.8 cm)

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Thickness  

Thickness Picture  

AOC AGON AG271QX Thickness Picture
Dell S2719DGF Thickness Picture

Thickness (with stand) 
 

6.4" (16.3 cm)
5.7" (14.5 cm)

Thickness (without stand) 
 

2.6" (6.6 cm)
2.1" (5.3 cm)

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Build Quality 
 

8.0
7.5

Build Quality Picture  

AOC AGON AG271QX Build Quality Picture
Dell S2719DGF Build Quality Picture

Show text

Picture Quality

Contrast 
 

6.1
5.8

Checkerboard Picture  

AOC AGON AG271QX Checkerboard Picture
Dell S2719DGF Checkerboard Picture

LCD Type 
 

TN
TN

Native Contrast 
 

1,042 : 1
890 : 1

Contrast With Local Dimming 
 

N/A
N/A

Show text

Local Dimming 
 

0.0
0.0

Local Dimming Video  

Local Dimming Video  

Local Dimming 
 

No
No

Backlight 
 

Edge
Edge

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SDR Peak Brightness 
 

7.9
8.1

SDR Real Scene 
 

347 cd/m²
386 cd/m²

SDR Peak 2% Window 
 

350 cd/m²
378 cd/m²

SDR Peak 10% Window 
 

350 cd/m²
378 cd/m²

SDR Peak 25% Window 
 

350 cd/m²
378 cd/m²

SDR Peak 50% Window 
 

350 cd/m²
379 cd/m²

SDR Peak 100% Window 
 

350 cd/m²
379 cd/m²

SDR Sustained 2% Window 
 

350 cd/m²
377 cd/m²

SDR Sustained 10% Window 
 

350 cd/m²
378 cd/m²

SDR Sustained 25% Window 
 

350 cd/m²
378 cd/m²

SDR Sustained 50% Window 
 

350 cd/m²
378 cd/m²

SDR Sustained 100% Window 
 

350 cd/m²
378 cd/m²

SDR ABL 
 

0.000
0.000

Show text

HDR Peak Brightness 
 

0.0
0.0

HDR Real Scene 
 

N/A
N/A

HDR Peak 2% Window 
 

N/A
N/A

HDR Peak 10% Window 
 

N/A
N/A

HDR Peak 25% Window 
 

N/A
N/A

HDR Peak 50% Window 
 

N/A
N/A

HDR Peak 100% Window 
 

N/A
N/A

HDR Sustained 2% Window 
 

N/A
N/A

HDR Sustained 10% Window 
 

N/A
N/A

HDR Sustained 25% Window 
 

N/A
N/A

HDR Sustained 50% Window 
 

N/A
N/A

HDR Sustained 100% Window 
 

N/A
N/A

HDR ABL 
 

N/A
N/A

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Horizontal Viewing Angle 
 

5.7
6.4

Horizontal Viewing Angle Video  

Horizontal Chroma Graph  

Dell S2719DGF Horizontal Chroma Graph

Color Washout From Left 
 

32°

Color Washout From Right 
 

32°

Horizontal Color Shift Picture  

AOC AGON AG271QX Horizontal Color Shift Picture

Horizontal Hue Graph  

Dell S2719DGF Horizontal Hue Graph

Color Shift From Left 
 

29°
41°

Color Shift From Right 
 

28°
41°

Horizontal Brightness Picture  

AOC AGON AG271QX Horizontal Brightness Picture

Horizontal Black Level Picture  

AOC AGON AG271QX Horizontal Black Level Picture

Horizontal Lightness Graph  

Dell S2719DGF Horizontal Lightness Graph

Brightness Loss From Left 
 

46°
46°

Brightness Loss From Right 
 

43°
48°

Black Level Raise From Left 
 

53°
26°

Black Level Raise From Right 
 

28°
23°

Curve Radius  

N/A

Gamma Shift From Left 
 

24°

Gamma Shift From Right 
 

26°

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Vertical Viewing Angle 
 

5.0
5.1

Vertical Viewing Angle Video  

Vertical Chroma Graph  

Dell S2719DGF Vertical Chroma Graph

Color Washout From Below 
 

16°

Color Washout From Above 
 

39°

Vertical Color Shift Picture  

AOC AGON AG271QX Vertical Color Shift Picture

Vertical Hue Graph  

Dell S2719DGF Vertical Hue Graph

Color Shift From Below 
 

31°
22°

Color Shift From Above 
 

44°

Vertical Brightness Picture  

AOC AGON AG271QX Vertical Brightness Picture

Vertical Black Level Picture  

AOC AGON AG271QX Vertical Black Level Picture

Vertical Lightness Graph  

Dell S2719DGF Vertical Lightness Graph

Brightness Loss From Below 
 

34°
34°

Brightness Loss From Above 
 

14°
31°

Black Level Raise From Below 
 

26°
28°

Black Level Raise From Above 
 

18°
56°

Gamma Shift From Below 
 

Gamma Shift From Above 
 

Show text

Gray Uniformity 
 

7.9
7.6

50% Uniformity Picture  

AOC AGON AG271QX 50% Uniformity Picture
Dell S2719DGF 50% Uniformity Picture

50% Std. Dev. 
 

5.583%
5.377%

50% DSE 
 

0.111%
0.139%

5% Uniformity Picture  

AOC AGON AG271QX 5% Uniformity Picture
Dell S2719DGF 5% Uniformity Picture

5% Std. Dev. 
 

1.606%
1.655%

5% DSE 
 

0.076%
0.069%

Show text

Black Uniformity 
 

6.1
0.0

Native Black Uniformity Picture  

AOC AGON AG271QX Native Black Uniformity Picture
Dell S2719DGF Native Black Uniformity Picture

Native Std. Dev. 
 

1.938%
7.400%

Black Uniformity Picture With Local Dimming  

AOC AGON AG271QX Black Uniformity Picture With Local Dimming
Dell S2719DGF Black Uniformity Picture With Local Dimming

Std. Dev. w/ L.D. 
 

N/A
N/A

Show text

Pre Calibration 
 

6.6
7.9

Pre Calibration Picture  

AOC AGON AG271QX Pre Calibration Picture
Dell S2719DGF Pre Calibration Picture

Pre Gamma Curve Picture  

AOC AGON AG271QX Pre Gamma Curve Picture
Dell S2719DGF Pre Gamma Curve Picture

Pre Color Picture  

AOC AGON AG271QX Pre Color Picture
Dell S2719DGF Pre Color Picture

Picture Mode 
 

Standard
Standard

Luminance 
 

317 cd/m²
421 cd/m²

Luminance Settings 
 

90
100

Contrast Setting 
 

50
75

RGB Controls 
 

50-50-50
Default

Gamma Setting 
 

No Gamma Setting

Color Temperature 
 

6,130 K
6,267 K

White Balance dE 
 

3.81
2.07

Color dE 
 

3.67
3.08

Gamma 
 

1.99
2.26

Show text

Post Calibration 
 

9.0
9.5

Post Calibration Picture  

AOC AGON AG271QX Post Calibration Picture
Dell S2719DGF Post Calibration Picture

Post Gamma Curve Picture  

AOC AGON AG271QX Post Gamma Curve Picture
Dell S2719DGF Post Gamma Curve Picture

Post Color Picture  

AOC AGON AG271QX Post Color Picture
Dell S2719DGF Post Color Picture

Picture Mode 
 

Standard
Custom Color

Luminance 
 

99 cd/m²
100 cd/m²

Luminance Settings 
 

20
19

Contrast Setting 
 

50
74

RGB Controls 
 

40-51-52
97-100-99

Gamma Setting 
 

No Gamma Setting

Color Temperature 
 

6,380 K
6,495 K

White Balance dE 
 

1.27
0.56

Color dE 
 

1.31
0.84

Gamma 
 

2.18
2.16

Show text

SDR Color Gamut 
 

8.6
8.5

Color Gamut sRGB Picture  

AOC AGON AG271QX Color Gamut sRGB Picture
Dell S2719DGF Color Gamut sRGB Picture

sRGB xy 
 

94.7%
94.7%

Color Gamut ARGB Picture  

AOC AGON AG271QX Color Gamut ARGB Picture
Dell S2719DGF Color Gamut ARGB Picture

Adobe RGB xy 
 

76.6%
74.3%

sRGB Picture Mode 
 

Custom Color

Adobe RGB Picture Mode 
 

Custom Color

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SDR Color Volume 
 

8.7
8.6

sRGB Color Volume ITP Picture  

AOC AGON AG271QX sRGB Color Volume ITP Picture
Dell S2719DGF sRGB Color Volume ITP Picture

sRGB In ICtCp 
 

94.6%
93.9%

Adobe RGB Color Volume ITP Picture  

AOC AGON AG271QX Adobe RGB Color Volume ITP Picture
Dell S2719DGF Adobe RGB Color Volume ITP Picture

Adobe RGB In ICtCp 
 

79.2%
77.8%

sRGB Picture Mode 
 

Custom Color

Adobe RGB Picture Mode 
 

Custom Color

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HDR Color Gamut 
 

0.0
0.0

Wide Color Gamut 
 

No
N/A

Color Gamut DCI-P3 Picture  

AOC AGON AG271QX Color Gamut DCI-P3 Picture
Dell S2719DGF Color Gamut DCI-P3 Picture

DCI P3 xy 
 

N/A
N/A

Color Gamut Rec.2020 Picture  

AOC AGON AG271QX Color Gamut Rec.2020 Picture
Dell S2719DGF Color Gamut Rec.2020 Picture

Rec. 2020 xy 
 

N/A
N/A

DCI P3 Picture Mode 
 

No HDR

Rec. 2020 Picture Mode 
 

No HDR

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HDR Color Volume 
 

0.0
0.0

P3 Color Volume ITP Picture  

AOC AGON AG271QX P3 Color Volume ITP Picture
Dell S2719DGF P3 Color Volume ITP Picture

DCI-P3 In ICtCp 
 

N/A
N/A

2020 Color Volume ITP Picture  

AOC AGON AG271QX 2020 Color Volume ITP Picture
Dell S2719DGF 2020 Color Volume ITP Picture

Rec. 2020 In ICtCp 
 

N/A
N/A

DCI P3 Picture Mode 
 

No HDR

Rec. 2020 Picture Mode 
 

No HDR

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Image Retention 
 

10
10

Image Retention Picture  

AOC AGON AG271QX Image Retention Picture
Dell S2719DGF 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%

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Gradient 
 

9.9
8.5

Gradient Picture  

AOC AGON AG271QX Gradient Picture
Dell S2719DGF Gradient Picture

Color Depth 
 

10 Bit
8 Bit

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Color Bleed 
 

9.3
9.2

Color Bleed Horizontal  

AOC AGON AG271QX Color Bleed Horizontal
Dell S2719DGF Color Bleed Horizontal

Pixel Row Error 
 

0.000%
0.001%

Color Bleed Vertical  

AOC AGON AG271QX Color Bleed Vertical
Dell S2719DGF Color Bleed Vertical

Pixel Column Error 
 

0.141%
0.172%

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Reflections 
 

7.5
7.3

Average Room  

AOC AGON AG271QX Average Room
Dell S2719DGF Average Room

Average Room Off Picture  

AOC AGON AG271QX Average Room Off Picture
Dell S2719DGF Average Room Off Picture

Bright Room Off Picture  

AOC AGON AG271QX Bright Room Off Picture
Dell S2719DGF Bright Room Off Picture

Screen Finish 
 

Matte

Total Reflections 
 

5.5%

Indirect Reflections 
 

2.9%

Calculated Direct Reflections 
 

2.6%

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Text Clarity 
 

7.0

ClearType On  

Dell S2719DGF ClearType On

Pixel Type 
 

TN
TN

ClearType Off  

Dell S2719DGF ClearType Off

Pixels  

Dell S2719DGF Pixels

Sub-Pixel Layout 
 

RGB

Show text

Motion

Response Time @ Max Refresh Rate 
 

9.7
9.5

Motion Blur Picture  

AOC AGON AG271QX Motion Blur Picture

Motion Blur Picture  

Dell S2719DGF Motion Blur Picture

Response Time Chart  

AOC AGON AG271QX Response Time Chart

Response Time Table  

Dell S2719DGF Response Time Table

Best Overdrive Setting 
 

Medium
Normal

Rise / Fall Time 
 

3.5 ms
4.1 ms

Total Response Time 
 

8.2 ms
8.2 ms

Overshoot Error 
 

0.7%

Dark Rise / Fall Time 
 

3.1 ms

Dark Total Response Time 
 

6.6 ms

Dark Overshoot Error 
 

0.0%

Show text

Response Time @ 60Hz 
 

8.6

Motion Blur Picture  

Dell S2719DGF Motion Blur Picture

Response Time Table  

Dell S2719DGF Response Time Table

Best Overdrive Setting 
 

Superfast

Rise / Fall Time 
 

4.1 ms

Total Response Time 
 

15.3 ms

Overshoot Error 
 

1.8%

Dark Rise / Fall Time 
 

3.2 ms

Dark Total Response Time 
 

13.1 ms

Dark Overshoot Error 
 

0.0%

Show text

Image Flicker 
 

7.5
10

Backlight Picture  

AOC AGON AG271QX Backlight Picture
Dell S2719DGF Backlight Picture

Flicker-Free  

Yes
Yes

PWM Dimming Frequency 
 

0 Hz
0 Hz

Black Frame Insertion (BFI) 
 

No
No

BFI Picture  

AOC AGON AG271QX BFI Picture
Dell S2719DGF BFI Picture

BFI Frequency Picture  

AOC AGON AG271QX BFI Frequency Picture
Dell S2719DGF BFI Frequency Picture

BFI Maximum Frequency 
 

N/A
N/A

BFI Minimum Frequency 
 

N/A
N/A

Show text

Black Frame Insertion (BFI) 
 

0.0

Black Frame Insertion (BFI) 
 

No
No

BFI Picture  

AOC AGON AG271QX BFI Picture
Dell S2719DGF BFI Picture

BFI Frequency Picture  

AOC AGON AG271QX BFI Frequency Picture
Dell S2719DGF BFI Frequency Picture

BFI Maximum Frequency 
 

N/A
N/A

BFI Minimum Frequency 
 

N/A
N/A

Show text

Refresh Rate 
 

9.2
9.1

Variable Refresh Rate 
 

FreeSync
FreeSync

Native 
 

144 Hz

Max Refresh Rate 
 

144 Hz
155 Hz

Factory Overclock 
 

N/A

Variable Refresh Rate 
 

FreeSync
Yes

FreeSync 
 

Yes

G-SYNC 
 

Yes
Compatible (Tested)

VRR Maximum 
 

144 Hz
144 Hz

VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR Maximum With OC 
 

N/A

VRR Supported Connectors  

DisplayPort, HDMI
DisplayPort, HDMI

Show text

Inputs

Input Lag 
 

9.5
9.5

Native Resolution 
 

5.3 ms
4.3 ms

Non-Native Res @ Native Refresh 
 

5.3 ms

Native Resolution @ 60Hz 
 

10.2 ms
9.1 ms

Variable Refresh Rate 
 

5.1 ms
4.4 ms

Variable Refresh Rate @ 60Hz 
 

9.7 ms

10 Bit HDR 
 

N/A
N/A

Black Frame Insertion (BFI) 
 

N/A
N/A

Show text

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
109 PPI

Screen Diagonal  

27.0"
27.0"

Screen Area  

311 in²
311 in²

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Inputs  

Inputs 1  

AOC AGON AG271QX Inputs 1
Dell S2719DGF Inputs 1

Inputs 2  

AOC AGON AG271QX Inputs 2
Dell S2719DGF Inputs 2

Show text

Total Inputs  

DisplayPort  

1 (DP 1.2)
1 (DP 1.2)

Mini DisplayPort  

No
No

HDMI  

1 (HDMI 2.0), 1 (HDMI 1.4)
1 (HDMI 2.0), 1 (HDMI 1.4)

DVI  

1 (DVI-D, dual link)
No

VGA  

1
No

DisplayPort Out  

No
No

USB  

2 (USB 3.0)
4 (USB 3.0)

USB C  

No
No

Analog Audio Out 3.5mm  

1
2

Microphone In 3.5mm  

1
No

Digital Optical Audio Out  

No
No

Analog Audio Out RCA  

No
No

Power Supply  

External Brick
Internal

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Features

Additional Features 
 

RGB Illumination 
 

No

Speakers 
 

Yes
No

HDR10  

No
No

Multiple Input Display 
 

No
No

Show text

On-Screen Display (OSD)  

OSD Picture  

AOC AGON AG271QX OSD Picture
Dell S2719DGF OSD Picture

Controls  

Controls Picture  

AOC AGON AG271QX Controls Picture
Dell S2719DGF Controls Picture

Show text

In The Box  

In The Box Picture  

AOC AGON AG271QX In The Box Picture
Dell S2719DGF In The Box Picture

Show text

Check Price

27"
AG271QX
B&H
27"
S2719DGF
B&H

AOC AGON AG271QX

Dell S2719DGF

Comments

  1. Comparison

AOC AGON AG271QX vs Dell S2719DGF: Main Discussion

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