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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
    9. Back
    10. Borders
    11. Thickness
  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
    18. Image Retention
    19. Color Bleed
  6. Motion
    1. Refresh Rate
    2. Variable Refresh Rate (VRR)
    3. VRR Motion Performance
    4. Refresh Rate Compliance
    5. CAD @ Max Refresh Rate
    6. Response Time @ Max Refresh Rate
    7. CAD @ 120Hz
    8. Response Time @ 120Hz
    9. CAD @ 60Hz
    10. Response Time @ 60Hz
    11. Backlight Strobing (BFI)
    12. VRR Flicker
    13. Image Flicker
    14. Response Time @ 60Hz
  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)
    3. Controls
    4. In The Box
  9. Comments

LG 27GL850-B/27GL83A-B vs BenQ EX2780Q

Side-by-Side Comparison

Products

LG 27GL850-B/27GL83A-B
BenQ EX2780Q

Tested using Methodology v2.0

Updated Aug 12, 2024 03:32 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.1

Updated May 24, 2024 02:06 PM

SEE PRICE
Amazon.com
LG 27GL850-B/27GL83A-B Picture
BenQ EX2780Q Picture

Variants

  • 27GL850-B (27")
  • 27GL83A-B (27")
  • EX2780Q (27")

Our Verdict

LG 27GL850-B/27GL83A-B

BenQ EX2780Q

The LG 27GL850-B/27GL83A-B is slightly better than the BenQ EX2780Q in mixed usage. Ergonomics are significantly better on the LG, as well as gradient performance. There's less color bleeding on the LG, but its black uniformity and contrast ratio are much worse than the BenQ.

0

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 

7.6
No major differences between these monitors for mixed usage. See full list of tests below.

Full Comparison

Design

Style 
 

Design Picture  

LG 27GL850-B/27GL83A-B Design Picture
BenQ EX2780Q Design Picture

Curved 
 

No
No

Curve Radius 
 

Not Curved
Not Curved

Size  

27"
27"

Weight (without stand) 
 

9.0 lbs (4.1 kg)
11.7 lbs (5.3 kg)

Weight (with stand) 
 

13.2 lbs (6.0 kg)
13.1 lbs (6.0 kg)

Show text

Accelerated Longevity Test 
 

Uniformity Pictures  

Longevity Graph  

LG 27GL850-B/27GL83A-B Longevity Graph

Build Quality 
 

7.0
7.0

Build Quality Picture  

LG 27GL850-B/27GL83A-B Build Quality Picture
BenQ EX2780Q Build Quality Picture

Show text

Ergonomics 
 

7.4
1.5

Ergonomics Picture  

LG 27GL850-B/27GL83A-B Ergonomics Picture
BenQ EX2780Q Ergonomics Picture

Back Picture  

LG 27GL850-B/27GL83A-B Back Picture
BenQ EX2780Q Back Picture

Height Adjustment 
 

4.1" (10.5 cm)
0.0" (0.0 cm)

Min Height To Top Of Panel 
 

17.9" (45.5 cm)

Tilt Range 
 

-15° to 5°
-20° to 5°

Rotate Portrait/Landscape 
 

Yes, Clockwise
No

Swivel Range 
 

No swivel
No swivel

Wall Mount 
 

VESA 100x100
VESA 100x100

Show text

Stand 
 

Stand Picture  

LG 27GL850-B/27GL83A-B Stand Picture
BenQ EX2780Q Stand Picture

Thickness Picture  

LG 27GL850-B/27GL83A-B Thickness Picture
BenQ EX2780Q Thickness Picture

Base Width 
 

18.9" (48.0 cm)
9.8" (24.9 cm)

Base Depth 
 

9.4" (23.9 cm)
6.3" (16.1 cm)

Thickness (With Display) 
 

6.5" (16.5 cm)
5.2" (13.3 cm)

Weight (With Display) 
 

13.2 lbs (6.0 kg)
13.1 lbs (6.0 kg)

Show text

Display 
 

Display Picture  

LG 27GL850-B/27GL83A-B Display Picture

Size 
 

27"
27"

Housing Width 
 

24.2" (61.4 cm)

Housing Height 
 

14.4" (36.5 cm)

Thickness (Without Stand) 
 

2.2" (5.6 cm)
3.2" (8.1 cm)

Weight (Without Stand) 
 

9.0 lbs (4.1 kg)
11.7 lbs (5.3 kg)

Borders Size (Bezels)  
 

0.4" (1.0 cm)
0.2" (0.6 cm)

Controls 
 

Controls Picture  

LG 27GL850-B/27GL83A-B Controls Picture
BenQ EX2780Q Controls Picture

Show text

In The Box 
 

In The Box Picture  

LG 27GL850-B/27GL83A-B In The Box Picture
BenQ EX2780Q In The Box Picture

Power Supply 
 

External Brick
Internal

Show text

Back  

Back Picture  

LG 27GL850-B/27GL83A-B Back Picture
BenQ EX2780Q Back Picture

Wall Mount  

VESA 100x100
VESA 100x100

Show text

Borders  

Borders Picture  

BenQ EX2780Q Borders Picture

Borders 
 

0.4" (1.0 cm)
0.2" (0.6 cm)

Show text

Thickness  

Thickness Picture  

LG 27GL850-B/27GL83A-B Thickness Picture
BenQ EX2780Q Thickness Picture

Thickness (with stand) 
 

6.5" (16.5 cm)
5.2" (13.3 cm)

Thickness (without stand) 
 

2.2" (5.6 cm)
3.2" (8.1 cm)

Show text

Picture Quality

Contrast 
 

5.5
6.2

Checkerboard Picture  

LG 27GL850-B/27GL83A-B Checkerboard Picture
BenQ EX2780Q Checkerboard Picture

Native Contrast 
 

735 : 1
1,142 : 1

Contrast With Local Dimming 
 

N/A
N/A

Show text

Local Dimming 
 

0.0
0.0

Local Dimming Video  

Local Dimming 
 

No
No

Backlight 
 

Edge
Edge

Show text

SDR Brightness 
 

7.8
8.0

Real Scene 
 

315 cd/m²
337 cd/m²

Peak 2% Window 
 

346 cd/m²
358 cd/m²

Peak 10% Window 
 

346 cd/m²
359 cd/m²

Peak 25% Window 
 

346 cd/m²
359 cd/m²

Peak 50% Window 
 

347 cd/m²
358 cd/m²

Peak 100% Window 
 

347 cd/m²
358 cd/m²

Sustained 2% Window 
 

346 cd/m²
358 cd/m²

Sustained 10% Window 
 

346 cd/m²
359 cd/m²

Sustained 25% Window 
 

346 cd/m²
358 cd/m²

Sustained 50% Window 
 

346 cd/m²
358 cd/m²

Sustained 100% Window 
 

347 cd/m²
358 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.000
0.000

Minimum Brightness 
 

50 cd/m²

Show text

HDR Brightness 
 

6.6
7.1

EOTF  

LG 27GL850-B/27GL83A-B EOTF

VESA DisplayHDR Certification 
 

No Certification

Real Scene 
 

363 cd/m²
455 cd/m²

Peak 2% Window 
 

394 cd/m²
480 cd/m²

Peak 10% Window 
 

395 cd/m²
480 cd/m²

Peak 25% Window 
 

396 cd/m²
480 cd/m²

Peak 50% Window 
 

396 cd/m²
480 cd/m²

Peak 100% Window 
 

396 cd/m²
479 cd/m²

Sustained 2% Window 
 

376 cd/m²
478 cd/m²

Sustained 10% Window 
 

379 cd/m²
479 cd/m²

Sustained 25% Window 
 

371 cd/m²
479 cd/m²

Sustained 50% Window 
 

380 cd/m²
479 cd/m²

Sustained 100% Window 
 

395 cd/m²
479 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.010
0.000

Show text

Horizontal Viewing Angle 
 

8.4
8.4

Horizontal Viewing Angle Video  

Horizontal Chroma Graph  

LG 27GL850-B/27GL83A-B Horizontal Chroma Graph
BenQ EX2780Q Horizontal Chroma Graph

Color Washout From Left 
 

45°
46°

Color Washout From Right 
 

45°
51°

Horizontal Hue Graph  

LG 27GL850-B/27GL83A-B Horizontal Hue Graph
BenQ EX2780Q Horizontal Hue Graph

Color Shift From Left 
 

51°
54°

Color Shift From Right 
 

51°
61°

Horizontal Lightness Graph  

LG 27GL850-B/27GL83A-B Horizontal Lightness Graph
BenQ EX2780Q Horizontal Lightness Graph

Brightness Loss From Left 
 

48°
46°

Brightness Loss From Right 
 

50°
51°

Black Level Raise From Left 
 

70°
70°

Black Level Raise From Right 
 

70°
70°

Gamma Shift From Left 
 

58°
48°

Gamma Shift From Right 
 

55°
51°

Show text

Vertical Viewing Angle 
 

6.8
6.7

Vertical Viewing Angle Video  

Vertical Chroma Graph  

LG 27GL850-B/27GL83A-B Vertical Chroma Graph
BenQ EX2780Q Vertical Chroma Graph

Color Washout From Below 
 

32°
24°

Color Washout From Above 
 

33°
33°

Vertical Hue Graph  

LG 27GL850-B/27GL83A-B Vertical Hue Graph
BenQ EX2780Q Vertical Hue Graph

Color Shift From Below 
 

33°
35°

Color Shift From Above 
 

39°
46°

Vertical Lightness Graph  

LG 27GL850-B/27GL83A-B Vertical Lightness Graph
BenQ EX2780Q Vertical Lightness Graph

Brightness Loss From Below 
 

37°
29°

Brightness Loss From Above 
 

39°
37°

Black Level Raise From Below 
 

70°
62°

Black Level Raise From Above 
 

41°
54°

Gamma Shift From Below 
 

31°
26°

Gamma Shift From Above 
 

31°
35°

Show text

Gray Uniformity 
 

7.8
8.7

50% Uniformity Picture  

LG 27GL850-B/27GL83A-B 50% Uniformity Picture
BenQ EX2780Q 50% Uniformity Picture

50% Std. Dev. 
 

3.120%
2.742%

50% DSE 
 

0.156%
0.110%

5% Uniformity Picture  

BenQ EX2780Q 5% Uniformity Picture

5% Std. Dev. 
 

0.387%

5% DSE 
 

0.058%

Show text

Black Uniformity 
 

4.8
6.1

Native Black Uniformity Picture  

LG 27GL850-B/27GL83A-B Native Black Uniformity Picture
BenQ EX2780Q Native Black Uniformity Picture

Native Std. Dev. 
 

2.831%
1.944%

Black Uniformity Picture With Local Dimming  

LG 27GL850-B/27GL83A-B Black Uniformity Picture With Local Dimming
BenQ EX2780Q Black Uniformity Picture With Local Dimming

Std. Dev. w/ L.D. 
 

N/A
N/A

Show text

Color Accuracy (Pre-Calibration) 
 

7.3
7.1

Pre Calibration Picture  

LG 27GL850-B/27GL83A-B Pre Calibration Picture
BenQ EX2780Q Pre Calibration Picture

Pre Gamma Curve Picture  

LG 27GL850-B/27GL83A-B Pre Gamma Curve Picture
BenQ EX2780Q Pre Gamma Curve Picture

Pre Color Picture  

LG 27GL850-B/27GL83A-B Pre Color Picture
BenQ EX2780Q Pre Color Picture

Picture Mode 
 

sRGB
M-Book

sRGB Gamut Area xy 
 

100.4%

White Balance dE (Avg.) 
 

6.96
3.51

Color Temperature (Avg.) 
 

7,860 K
6,521 K

Gamma (Avg.) 
 

2.13
2.48

Color dE (Avg.) 
 

4.15
3.18

Contrast Setting 
 

N/A
50

RGB Settings 
 

Default
100-100-100

Gamma Setting 
 

Default
2.2 (Default)

Brightness Setting 
 

40
100

Measured Brightness 
 

182 cd/m²
314 cd/m²

Brightness Locked 
 

No

Show text

Color Accuracy (Post-Calibration) 
 

9.5
9.6

Post Calibration Picture  

LG 27GL850-B/27GL83A-B Post Calibration Picture
BenQ EX2780Q Post Calibration Picture

Post Gamma Curve Picture  

LG 27GL850-B/27GL83A-B Post Gamma Curve Picture
BenQ EX2780Q Post Gamma Curve Picture

Post Color Picture  

LG 27GL850-B/27GL83A-B Post Color Picture
BenQ EX2780Q Post Color Picture

Picture Mode 
 

Gamer 1
User

sRGB Gamut Area xy 
 

102.7%

White Balance dE (Avg.) 
 

0.66
0.73

Color Temperature (Avg.) 
 

6,473 K
6,580 K

Gamma (Avg.) 
 

2.18
2.18

Color dE (Avg.) 
 

0.56
0.53

Contrast Setting 
 

68
50

RGB Settings 
 

49-46-40
96-99-100

Gamma Setting 
 

Mode 2
2.2 (Default)

Brightness Setting 
 

18
13

Measured Brightness 
 

102 cd/m²
102 cd/m²

ICC Profile 
 

Show text

SDR Color Gamut 
 

9.5
9.3

sRGB Color Gamut Picture  

LG 27GL850-B/27GL83A-B sRGB Color Gamut Picture
BenQ EX2780Q sRGB Color Gamut Picture

sRGB Coverage xy 
 

99.6%
99.6%

sRGB Picture Mode 
 

Gamer 1
User

Adobe RGB Color Gamut Picture  

LG 27GL850-B/27GL83A-B Adobe RGB Color Gamut Picture
BenQ EX2780Q Adobe RGB Color Gamut Picture

Adobe RGB Coverage xy 
 

88.2%
86.3%

Adobe RGB Picture Mode 
 

Gamer 1
User

Show text

HDR Color Gamut 
 

8.8
6.9

Wide Color Gamut 
 

Yes
Yes

DCI-P3 Color Gamut Picture  

LG 27GL850-B/27GL83A-B DCI-P3 Color Gamut Picture
BenQ EX2780Q DCI-P3 Color Gamut Picture

DCI-P3 Coverage xy 
 

95.2%

DCI-P3 Picture Mode 
 

Standard
Display HDR

Rec. 2020 Color Gamut Picture  

LG 27GL850-B/27GL83A-B Rec. 2020 Color Gamut Picture
BenQ EX2780Q Rec. 2020 Color Gamut Picture

Rec. 2020 Coverage xy 
 

70.5%
68.4%

Rec. 2020 Picture Mode 
 

Standard
Display HDR

DCI P3 xy 
 

70.4%

Show text

HDR Color Volume 
 

7.1
6.2

DCI-P3 Color Volume ITP Picture  

LG 27GL850-B/27GL83A-B DCI-P3 Color Volume ITP Picture
BenQ EX2780Q DCI-P3 Color Volume ITP Picture

1,000 cd/m² DCI-P3 Coverage ICtCp 
 

57.7%
62.0%

DCI-P3 Picture Mode 
 

Standard
Display HDR

Rec. 2020 Color Volume ITP Picture  

LG 27GL850-B/27GL83A-B Rec. 2020 Color Volume ITP Picture
BenQ EX2780Q Rec. 2020 Color Volume ITP Picture

10,000 cd/m² Rec. 2020 Coverage ICtCp 
 

27.6%
62.4%

Rec. 2020 Picture Mode 
 

Standard
Display HDR

Show text

Text Clarity 
 

7.0
7.0

ClearType On  

LG 27GL850-B/27GL83A-B ClearType On
BenQ EX2780Q ClearType On

ClearType Off  

LG 27GL850-B/27GL83A-B ClearType Off
BenQ EX2780Q ClearType Off

Pixel Type 
 

IPS
IPS

Pixels  

LG 27GL850-B/27GL83A-B Pixels
BenQ EX2780Q Pixels

Subpixel Layout 
 

RGB
RGB

Show text

Reflections 
 

7.7
7.5

Average Room  

LG 27GL850-B/27GL83A-B Average Room
BenQ EX2780Q Average Room

Average Room Off Picture  

LG 27GL850-B/27GL83A-B Average Room Off Picture
BenQ EX2780Q Average Room Off Picture

Bright Room Off Picture  

LG 27GL850-B/27GL83A-B Bright Room Off Picture
BenQ EX2780Q Bright Room Off Picture

Screen Finish 
 

Matte
Matte

Total Reflections 
 

4.8%
5.1%

Indirect Reflections 
 

2.7%
2.7%

Calculated Direct Reflections 
 

2.1%
2.4%

Show text

Gradient 
 

9.7
9.0

Gradient Picture  

LG 27GL850-B/27GL83A-B Gradient Picture
BenQ EX2780Q Gradient Picture

Color Depth 
 

10 Bit
10 Bit

Show text

SDR Color Volume 
 

9.5

sRGB Color Volume ITP Picture  

BenQ EX2780Q sRGB Color Volume ITP Picture

sRGB In ICtCp 
 

98.0%

Adobe RGB Color Volume ITP Picture  

BenQ EX2780Q Adobe RGB Color Volume ITP Picture

Adobe RGB In ICtCp 
 

91.6%

sRGB Picture Mode 
 

User

Adobe RGB Picture Mode 
 

User

Show text

Image Retention 
 

10

Image Retention Picture  

BenQ EX2780Q Image Retention Picture

IR After 0 Min Recovery 
 

0.00%

IR After 2 Min Recovery 
 

0.00%

IR After 4 Min Recovery 
 

0.00%

IR After 6 Min Recovery 
 

0.00%

IR After 8 Min Recovery 
 

0.00%

IR After 10 Min Recovery 
 

0.00%

Show text

Color Bleed 
 

8.0

Color Bleed Horizontal  

BenQ EX2780Q Color Bleed Horizontal

Pixel Row Error 
 

0.001%

Color Bleed Vertical  

BenQ EX2780Q Color Bleed Vertical

Pixel Column Error 
 

0.408%

Show text

Motion

Refresh Rate 
 

7.4

Native Refresh Rate 
 

144 Hz
144 Hz

Max Refresh Rate 
 

144 Hz
144 Hz

Max Refresh Rate Over DP 
 

144 Hz

Max Refresh Rate Over HDMI 
 

144 Hz

Max Refresh Rate Over DP @ 10-bit 
 

144 Hz

Max Refresh Rate Over HDMI @ 10-Bit 
 

75 Hz

Variable Refresh Rate (VRR) 
 

Variable Refresh Rate 
 

Yes
FreeSync

FreeSync 
 

Yes
Yes

G-SYNC 
 

Compatible (NVIDIA Certified)
Compatible (Tested)

VRR Maximum 
 

144 Hz
144 Hz

VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR Supported Connectors 
 

DisplayPort, HDMI
DisplayPort, HDMI

Native 
 

144 Hz
144 Hz

Max Refresh Rate 
 

144 Hz
144 Hz

Variable Refresh Rate 
 

Yes

Show text

VRR Motion Performance 
 

7.5

Pursuit Photo VRR  

LG 27GL850-B/27GL83A-B Pursuit Photo VRR

OD Mode CAD Comparison  

See details on graph tool

Recommended VRR OD Setting 
 

Fast

Variable Overdrive Advertised 
 

No

Avg. CAD 
 

189

Best CAD 
 

182

Worst CAD 
 

205

Show text

Refresh Rate Compliance 
 

7.3

Fast GTG Sequence  

See details on graph tool

VRR Compliance  

See details on graph tool

Compliance @ Max Hz 
 

53%

Compliance @ 120 FPS 
 

58%

Compliance @ 60 FPS 
 

76%

Show text

CAD @ Max Refresh Rate 
 

7.4

Pursuit Photo At Max Refresh  

LG 27GL850-B/27GL83A-B Pursuit Photo At Max Refresh
BenQ EX2780Q Pursuit Photo At Max Refresh

CAD Heatmap At Max Refresh  

LG 27GL850-B/27GL83A-B CAD Heatmap At Max Refresh
BenQ EX2780Q CAD Heatmap At Max Refresh

OD Transition Max Refresh Rate 
 

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

Recommended Overdrive Setting 
 

Fast

Avg. CAD 
 

182

Best 10% CAD 
 

104

Worst 10% CAD 
 

300

Show text

Response Time @ Max Refresh Rate 
 

First Response Time 
 

7.1 ms
5.2 ms

Total Response Time 
 

7.1 ms
11.8 ms

Recommended Overdrive Setting 
 

Fast
Premium

RGB Overshoot 
 

0 RGB
3.3%

Worst 10% RGB Overshoot 
 

1 RGB
0.0%

Worst 10% First Response Time 
 

13.0 ms
6.5 ms

Worst 10% Total Response Time 
 

13.0 ms
14.1 ms

Heatmap First Response  

LG 27GL850-B/27GL83A-B Heatmap First Response

Heatmap Total Response  

LG 27GL850-B/27GL83A-B Heatmap Total Response

Heatmap RGB Overshoot  

LG 27GL850-B/27GL83A-B Heatmap RGB Overshoot

Motion Blur Picture  

LG 27GL850-B/27GL83A-B Motion Blur Picture
BenQ EX2780Q Motion Blur Picture

Response Time Table  

LG 27GL850-B/27GL83A-B Response Time Table
BenQ EX2780Q Response Time Table

Show text

CAD @ 120Hz 
 

7.4

Pursuit Photo 120Hz  

LG 27GL850-B/27GL83A-B Pursuit Photo 120Hz

CAD Heatmap 120Hz  

LG 27GL850-B/27GL83A-B CAD Heatmap 120Hz

OD Transition 120Hz 
 

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

Recommended Overdrive Setting 
 

Fast

Avg. CAD 
 

183

Best 10% CAD 
 

103

Worst 10% CAD 
 

301

Show text

Response Time @ 120Hz 
 

Worst 10% First Response Time 
 

13.0 ms

RGB Overshoot 
 

1 RGB

Total Response Time 
 

7.4 ms

First Response Time 
 

6.8 ms

Recommended Overdrive Setting 
 

Fast

Worst 10% Total Response Time 
 

13.1 ms

Worst 10% RGB Overshoot 
 

8 RGB

120Hz First Response Heatmap  

LG 27GL850-B/27GL83A-B 120Hz First Response Heatmap

120Hz Total Response Heatmap  

LG 27GL850-B/27GL83A-B 120Hz Total Response Heatmap

120Hz Heatmap RGB Overshoot  

LG 27GL850-B/27GL83A-B 120Hz Heatmap RGB Overshoot

Show text

CAD @ 60Hz 
 

7.1

Pursuit Photo 60Hz  

LG 27GL850-B/27GL83A-B Pursuit Photo 60Hz
BenQ EX2780Q Pursuit Photo 60Hz

CAD Heatmap 60Hz  

LG 27GL850-B/27GL83A-B CAD Heatmap 60Hz

OD Transition 60Hz 
 

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

Recommended Overdrive Setting 
 

Fast

Avg. CAD 
 

208

Best 10% CAD 
 

115

Worst 10% CAD 
 

331

Show text

Response Time @ 60Hz 
 

Recommended Overdrive Setting 
 

Fast
High

First Response Time 
 

6.5 ms
7.7 ms

Total Response Time 
 

13.7 ms
13.7 ms

RGB Overshoot 
 

5 RGB
0%

Worst 10% Total Response Time 
 

21.8 ms
15.5 ms

Worst 10% First Response Time 
 

10.8 ms
9.0 ms

Worst 10% RGB Overshoot 
 

16 RGB
0.0%

60Hz First Response Heatmap  

LG 27GL850-B/27GL83A-B 60Hz First Response Heatmap

60Hz Total Response Heatmap  

LG 27GL850-B/27GL83A-B 60Hz Total Response Heatmap

60Hz RGB Overshoot Heatmap  

LG 27GL850-B/27GL83A-B 60Hz RGB Overshoot Heatmap

Show text

Backlight Strobing (BFI) 
 

Backlight Strobing Picture  

LG 27GL850-B/27GL83A-B Backlight Strobing Picture
BenQ EX2780Q Backlight Strobing Picture

Backlight Strobing Frequency Picture  

LG 27GL850-B/27GL83A-B Backlight Strobing Frequency Picture
BenQ EX2780Q Backlight Strobing Frequency Picture

Backlight Strobing (BFI) 
 

No BFI
No BFI

Maximum Frequency 
 

N/A
N/A

Minimum Frequency 
 

N/A
N/A

Longest Pulse Width Brightness 
 

N/A

Shortest Pulse Width Brightness 
 

N/A

Pulse Width Control 
 

No BFI

Pulse Phase Control 
 

No BFI

Pulse Amplitude Control 
 

No BFI

VRR At The Same Time 
 

No BFI

Show text

VRR Flicker 
 

8.5

VRR Flicker Video  

VRR Flicker Graph  

LG 27GL850-B/27GL83A-B VRR Flicker Graph

Dark Gray Flicker 
 

0.9 RGB

Middle Gray Flicker 
 

1.7 RGB

Light Gray Flicker 
 

1.5 RGB

Show text

Image Flicker 
 

10
10

Backlight Picture  

LG 27GL850-B/27GL83A-B Backlight Picture
BenQ EX2780Q Backlight Picture

Flicker-Free 
 

Yes
Yes

PWM Dimming Frequency 
 

0 Hz
0 Hz

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Response Time @ 60Hz 
 

8.0

Motion Blur Picture  

BenQ EX2780Q Motion Blur Picture

Response Time Table  

LG 27GL850-B/27GL83A-B Response Time Table
BenQ EX2780Q Response Time Table

Best Overdrive Setting 
 

Fast
High

Rise / Fall Time 
 

6.5 ms
7.7 ms

Total Response Time 
 

13.7 ms
13.7 ms

Overshoot Error 
 

5 RGB
0%

Dark Rise / Fall Time 
 

10.8 ms
9.0 ms

Dark Total Response Time 
 

21.8 ms
15.5 ms

Dark Overshoot Error 
 

16 RGB
0.0%

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Inputs

Input Lag 
 

8.7
9.5

Native Resolution @ Max Hz 
 

4.3 ms
4.1 ms

Native Resolution @ 120Hz 
 

5.1 ms

Native Resolution @ 60Hz 
 

14.0 ms
9.0 ms

Variable Refresh Rate 
 

4.1 ms

Variable Refresh Rate @ 60Hz 
 

8.8 ms

10 Bit HDR 
 

4.7 ms

Backlight Strobing (BFI) 
 

N/A
N/A

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Resolution 
 

7.5
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"

Screen Area  

310 in²

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PS5 Compatibility 
 

3.9

PS5 Compatibility Photo  

LG 27GL850-B/27GL83A-B PS5 Compatibility Photo

PS5 Compatibility Table  

LG 27GL850-B/27GL83A-B PS5 Compatibility Table

4k @ 120Hz 
 

No

4k @ 60Hz 
 

Yes

1440p @ 120Hz 
 

Yes

1440p @ 60Hz 
 

Yes

1080p @ 120Hz 
 

Yes

1080p @ 60Hz 
 

Yes

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Xbox Series X|S Compatibility 
 

6.6

XSX Compatibility Photo  

LG 27GL850-B/27GL83A-B XSX Compatibility Photo

XSX Compatibility Table  

LG 27GL850-B/27GL83A-B XSX Compatibility Table

4k @ 120Hz 
 

No

4k @ 60Hz 
 

Yes

1440p @ 120Hz 
 

Yes

1440p @ 60Hz 
 

Yes

1080p @ 120Hz 
 

Yes

1080p @ 60Hz 
 

Yes

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Inputs Photos  

Inputs 1  

LG 27GL850-B/27GL83A-B Inputs 1
BenQ EX2780Q Inputs 1

Inputs 2  

LG 27GL850-B/27GL83A-B Inputs 2
BenQ EX2780Q Inputs 2

Video And Audio Ports 
 

DisplayPort 
 

1 (DP 1.4)
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

DVI 
 

No
No

VGA 
 

No
No

Daisy Chaining 
 

No

3.5mm Audio Out 
 

1
1

HDR10 
 

Yes
Yes

3.5mm Audio In 
 

No

3.5mm Microphone In 
 

No
1

DisplayPort Out  

No

USB  

2
No

USB C  

0
1

Digital Optical Audio Out  

No

Analog Audio Out RCA  

No

Power Supply  

External Brick
Internal

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USB 
 

USB-A Ports 
 

2
No

USB-A Rated Speed 
 

5Gbps (USB 3.2 Gen 1)

USB-B Upstream Port 
 

Yes

USB-C Ports 
 

0
1

USB-C Upstream 
 

No USB-C Ports

USB-C Rated Speed 
 

No USB-C Ports

USB-C Power Delivery 
 

No USB-C Ports

USB-C DisplayPort Alt Mode 
 

No USB-C Ports

Thunderbolt 
 

No

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macOS Compatibility 
 

macOS Screenshot  

LG 27GL850-B/27GL83A-B macOS Screenshot

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Features

Additional Features 
 

Speakers 
 

No
Yes

RGB Illumination 
 

No
No

Multiple Input Display 
 

No
No

KVM Switch 
 

No

HDR10  

Yes
Yes

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On-Screen Display (OSD) 
 

OSD Picture  

LG 27GL850-B/27GL83A-B OSD Picture
BenQ EX2780Q OSD Picture

Controls  

Controls Picture  

LG 27GL850-B/27GL83A-B Controls Picture
BenQ EX2780Q Controls Picture

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In The Box  

In The Box Picture  

LG 27GL850-B/27GL83A-B In The Box Picture
BenQ EX2780Q In The Box Picture

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LG 27GL850-B/27GL83A-B

BenQ EX2780Q

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