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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
LG 27GN850-B/27GN880-B vs Dell S2721D
Side-by-Side Comparison
Products
LG 27GN850-B/27GN880-B
Dell S2721D
Tested using Methodology v1.2
Updated May 17, 2024 08:11 PM
SEE PRICE
Amazon.comTested using Methodology v1.1
Updated Apr 02, 2024 07:57 PM
SEE PRICE
Amazon.com
Max Refresh Rate144 Hz
Size27"
Pixel TypeIPS
Variable Refresh RateYes
HDR10Yes
Native Resolution2560 x 1440
Max Refresh Rate75 Hz
Size27"
Pixel TypeIPS
Variable Refresh RateFreeSync
HDR10No
Native Resolution2560 x 1440
Variants
- 27GN850-B (27")
- 27GN880-B (27")
- S2721D (27")
Our Verdict
LG 27GN850-B/27GN880-B
Dell S2721D
Full comparison details regarding individual product score sets can be found in the section below
Check Price
27"
27GN850-B
Searching
Finding store27"
S2721D
SEE PRICE
Amazon.com27"
27GN880-B
Searching
Finding store27"
S2721D
SEE PRICE
Walmart.com27"
S2721D
SEE PRICE
B&H27"
S2721D
SEE PRICE
BestBuy.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.
Main Differences for
Threshold
Office
7.6
7.7
Ergonomics
7.1
1.5
Vertical Viewing Angle
6.4
9.2
Reflections
7.4
8.4
Horizontal Viewing Angle
8.5
7.8
Resolution And Size
8.0
8.3
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Size
27"
27"
Weight (without stand)
9.3 lbs (4.2 kg)
8.2 lbs (3.7 kg)
Weight (with stand)
13.9 lbs (6.3 kg)
9.7 lbs (4.4 kg)
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.0
7.5
Build Quality Picture
Ergonomics
7.1
1.5
Ergonomics Picture
Back Picture
Height Adjustment
4.3" (11.0 cm)
0.0" (0.0 cm)
Tilt Range
-15° to 5°
-21° to 5°
Rotate Portrait/Landscape
Yes, Clockwise
No
Swivel Range
No swivel
No swivel
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
16.7" (42.5 cm)
9.9" (25.1 cm)
Base Depth
11.6" (29.4 cm)
7.0" (17.7 cm)
Thickness (With Display)
8.7" (22.2 cm)
5.0" (12.6 cm)
Weight (With Display)
13.9 lbs (6.3 kg)
9.7 lbs (4.4 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.2" (61.5 cm)
Housing Height
14.4" (36.5 cm)
Thickness (Without Stand)
2.0" (5.2 cm)
1.9" (4.8 cm)
Weight (Without Stand)
9.3 lbs (4.2 kg)
8.2 lbs (3.7 kg)
Borders Size (Bezels)
0.3" (0.8 cm)
0.2" (0.6 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
External Brick
Internal
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.3" (0.8 cm)
0.2" (0.6 cm)
Thickness
Thickness Picture
Thickness (with stand)
8.7" (22.2 cm)
5.0" (12.6 cm)
Thickness (without stand)
2.0" (5.2 cm)
1.9" (4.8 cm)
Picture Quality
Contrast
5.7
6.0
Checkerboard Picture
Native Contrast
852 : 1
1,015 : 1
Contrast With Local Dimming
N/A
N/A
Local Dimming
0.0
0.0
Local Dimming Video
Local Dimming
No
No
Backlight
Edge
Edge
SDR Brightness
7.7
7.8
Real Scene
321 cd/m²
316 cd/m²
Peak 2% Window
320 cd/m²
332 cd/m²
Peak 10% Window
322 cd/m²
334 cd/m²
Peak 25% Window
322 cd/m²
334 cd/m²
Peak 50% Window
322 cd/m²
334 cd/m²
Peak 100% Window
322 cd/m²
334 cd/m²
Sustained 2% Window
320 cd/m²
331 cd/m²
Sustained 10% Window
322 cd/m²
333 cd/m²
Sustained 25% Window
322 cd/m²
333 cd/m²
Sustained 50% Window
322 cd/m²
334 cd/m²
Sustained 100% Window
322 cd/m²
334 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
Minimum Brightness
55 cd/m²
HDR Brightness
6.2
0.0
EOTF
VESA DisplayHDR Certification
No Certification
Real Scene
325 cd/m²
N/A
Peak 2% Window
325 cd/m²
N/A
Peak 10% Window
326 cd/m²
N/A
Peak 25% Window
326 cd/m²
N/A
Peak 50% Window
326 cd/m²
N/A
Peak 100% Window
351 cd/m²
N/A
Sustained 2% Window
296 cd/m²
N/A
Sustained 10% Window
301 cd/m²
N/A
Sustained 25% Window
302 cd/m²
N/A
Sustained 50% Window
305 cd/m²
N/A
Sustained 100% Window
325 cd/m²
N/A
Automatic Brightness Limiting (ABL)
0.005
N/A
Horizontal Viewing Angle
8.5
7.8
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
46°
46°
Color Washout From Right
46°
42°
Horizontal Hue Graph
Color Shift From Left
55°
54°
Color Shift From Right
55°
63°
Horizontal Lightness Graph
Brightness Loss From Left
49°
52°
Brightness Loss From Right
49°
51°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
30°
Gamma Shift From Left
61°
44°
Gamma Shift From Right
59°
39°
Vertical Viewing Angle
6.4
9.2
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
34°
50°
Color Washout From Above
34°
59°
Vertical Hue Graph
Color Shift From Below
31°
64°
Color Shift From Above
37°
60°
Vertical Lightness Graph
Brightness Loss From Below
39°
54°
Brightness Loss From Above
39°
58°
Black Level Raise From Below
33°
70°
Black Level Raise From Above
28°
70°
Gamma Shift From Below
33°
67°
Gamma Shift From Above
33°
70°
Gray Uniformity
8.1
8.9
50% Uniformity Picture
50% Std. Dev.
3.109%
2.217%
50% DSE
0.137%
0.090%
5% Uniformity Picture
5% Std. Dev.
0.261%
5% DSE
0.047%
Black Uniformity
5.5
6.7
Native Black Uniformity Picture
Native Std. Dev.
2.337%
1.489%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
8.1
6.2
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
sRGB
Custom Color
sRGB Gamut Area xy
99.5%
White Balance dE (Avg.)
4.91
4.59
Color Temperature (Avg.)
7,183 K
5,806 K
Gamma (Avg.)
2.13
2.17
Color dE (Avg.)
2.85
3.60
Contrast Setting
N/A
75
RGB Settings
Default
100-100-100
Gamma Setting
Default
No Gamma Setting
Brightness Setting
50
100
Measured Brightness
181 cd/m²
385 cd/m²
Brightness Locked
No
Color Accuracy (Post-Calibration)
9.6
9.6
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Gamer 1
Custom Color
sRGB Gamut Area xy
102.6%
White Balance dE (Avg.)
0.52
0.78
Color Temperature (Avg.)
6,475 K
6,543 K
Gamma (Avg.)
2.18
2.18
Color dE (Avg.)
0.59
0.48
Contrast Setting
70
75
RGB Settings
50-48-45
92-94-100
Gamma Setting
Mode 2
No Gamma Setting
Brightness Setting
15
21
Measured Brightness
101 cd/m²
100 cd/m²
ICC Profile
SDR Color Gamut
9.6
8.8
sRGB Color Gamut Picture
sRGB Coverage xy
99.8%
98.6%
sRGB Picture Mode
Gamer 1
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
88.8%
76.4%
Adobe RGB Picture Mode
Gamer 1
Custom Color
SDR Color Volume
9.7
9.0
sRGB Color Volume ITP Picture
sRGB In ICtCp
97.5%
97.4%
sRGB Picture Mode
Gamer 1
Custom Color
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
92.8%
82.3%
Adobe RGB Picture Mode
Gamer 1
Custom Color
HDR Color Gamut
8.8
0.0
Wide Color Gamut
Yes
N/A
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
95.5%
DCI-P3 Picture Mode
Gamer 2
No HDR
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
70.0%
N/A
Rec. 2020 Picture Mode
Gamer 2
No HDR
DCI P3 xy
N/A
HDR Color Volume
7.7
0.0
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
78.3%
N/A
DCI-P3 Picture Mode
Gamer 2
No HDR
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
62.7%
N/A
Rec. 2020 Picture Mode
Gamer 2
No HDR
Image Retention
9.7
Image Retention Picture
IR After 0 Min Recovery
0.08%
IR After 2 Min Recovery
0.01%
IR After 4 Min Recovery
0.02%
IR After 6 Min Recovery
0.00%
IR After 8 Min Recovery
0.00%
IR After 10 Min Recovery
0.00%
Reflections
7.4
8.4
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.2%
4.3%
Indirect Reflections
2.7%
3.8%
Calculated Direct Reflections
2.5%
0.5%
Text Clarity
7.0
7.0
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Gradient
9.8
8.6
Gradient Picture
Color Depth
10 Bit
8 Bit
Color Bleed
10
Color Bleed Horizontal
Pixel Row Error
0.000%
Color Bleed Vertical
Pixel Column Error
0.000%
Motion
Refresh Rate
8.3
Native Refresh Rate
144 Hz
75 Hz
Max Refresh Rate
144 Hz
75 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
60 Hz
Variable Refresh Rate (VRR)
FreeSync
Yes
Yes
G-SYNC
Compatible (NVIDIA Certified)
Compatible (Tested)
VRR Maximum
144 Hz
75 Hz
VRR Minimum
< 20 Hz
48 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
Variable Refresh Rate
Yes
FreeSync
Native
144 Hz
75 Hz
Max Refresh Rate
144 Hz
75 Hz
Variable Refresh Rate
Yes
Response Time @ Max Refresh Rate
8.8
7.0
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Normal
Rise / Fall Time
4.2 ms
9.8 ms
Total Response Time
7.8 ms
17.4 ms
Overshoot Error
0.2%
0.0%
Worst 3 Rise / Fall Time
5.5 ms
11.8 ms
Worst 3 Total Response Time
10.7 ms
19.8 ms
Worst 3 Overshoot Error
1.8%
0.0%
Response Time @ 120Hz
8.9
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Rise / Fall Time
4.2 ms
Total Response Time
7.5 ms
Overshoot Error
0.2%
Worst 3 Rise / Fall Time
5.4 ms
Worst 3 Total Response Time
9.4 ms
Worst 3 Overshoot Error
2.4%
Response Time @ 60Hz
8.1
7.3
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Normal
Rise / Fall Time
4.2 ms
9.5 ms
Total Response Time
11.4 ms
16 ms
Overshoot Error
1.4%
0.1%
Worst 3 Rise / Fall Time
5.1 ms
11.8 ms
Worst 3 Total Response Time
22.0 ms
18.2 ms
Worst 3 Overshoot Error
8.3%
0.0%
Backlight Strobing (BFI)
Backlight Strobing Picture
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
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.7
9.1
Native Resolution @ Max Hz
4.5 ms
6.9 ms
Native Resolution @ 120Hz
5.2 ms
Native Resolution @ 60Hz
14.0 ms
8.6 ms
Variable Refresh Rate
7.7 ms
Variable Refresh Rate @ 60Hz
9.4 ms
10 Bit HDR
N/A
Backlight Strobing (BFI)
N/A
N/A
Resolution And Size
8.0
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
Measured Screen Diagonal
27.0"
27.0"
Screen Area
311 in²
310 in²
PS5 Compatibility
7.0
PS5 Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
Yes
VRR
No
Xbox Series X|S Compatibility
9.2
XSX Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
Yes
VRR
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.4)
1 (DP 1.2)
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
2 (HDMI 1.4)
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
No
3.5mm Audio In
No
3.5mm Microphone In
No
No
DisplayPort Out
No
USB
0
No
USB C
0
No
Digital Optical Audio Out
No
Analog Audio Out RCA
No
Power Supply
External Brick
Internal
USB
USB-A Ports
0
No
USB-A Rated Speed
No USB-A Ports
USB-B Upstream Port
No
USB-C Ports
0
No
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
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
No
Yes
RGB Illumination
No
No
Multiple Input Display
No
No
KVM Switch
No
HDR10
Yes
No
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Check Price
27"
27GN850-B
Searching
Finding store27"
S2721D
SEE PRICE
Amazon.com27"
27GN880-B
Searching
Finding store27"
S2721D
SEE PRICE
Walmart.com27"
S2721D
SEE PRICE
B&H27"
S2721D
SEE PRICE
BestBuy.com
LG 27GN850-B/27GN880-B
Dell S2721D
Comments
LG 27GN850-B/27GN880-B vs Dell S2721D: Main Discussion
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