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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
LG 27UD68-B vs Samsung UE590
Side-by-Side Comparison
Products
LG 27UD68-B
Samsung UE590
Tested using Methodology v1.0
Updated Feb 15, 2023 07:49 PM
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Amazon.comTested using Methodology v1.1
Updated Dec 16, 2022 03:27 PM
SEE PRICE
Amazon.com
Size27"
Pixel TypeIPS
Variable Refresh RateFreeSync
Native Resolution3840 x 2160
Max Refresh Rate60 Hz
Size28"
Pixel TypeTN
Variable Refresh RateFreeSync
Native Resolution3840 x 2160
Max Refresh Rate60 Hz
Variants
- 27UD68P-B (27" Black)
- 27UD68-W (27" White)
- U24E590D (24")
- U28E590D (28")
Our Verdict
LG 27UD68-B
Samsung UE590
The LG 27UD68P-B is significantly better than the Samsung UE590. The LG 27UD68P-B uses an IPS panel which has much wider viewing angles. The LG has better ergonomics, as the stand height can be adjusted and it can switch between portrait and landscape orientations. The LG is flicker-free, whereas the Samsung UE590 flickers at lower brightness levels, which causes duplications in motion.
Check Price
27" Black
27UD68P-B
Searching
Finding store24"
U24E590D
Searching
Finding store27" White
27UD68-W
Searching
Finding store28"
U28E590D
Searching
Finding storeNotice:
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
7.6
6.7
Ergonomics
6.7
1.5
Vertical Viewing Angle
8.2
5.4
Full Comparison
Design
Style
Design Picture
Size
27"
28"
Curved
No
No
Curve Radius
N/A
Not Curved
Weight (without stand)
9.9 lbs (4.5 kg)
10.4 lbs (4.7 kg)
Weight (with stand)
12.6 lbs (5.7 kg)
11.9 lbs (5.4 kg)
Stand
Stand Picture
Width
19.9" (50.5 cm)
15.3" (38.9 cm)
Depth
9.4" (23.9 cm)
7.4" (18.8 cm)
Ergonomics
6.7
1.5
Ergonomics Picture
Height Adjustment
4.8" (12.2 cm)
0.0" (0.0 cm)
Switch Portrait/Landscape
Yes
No
Swivel Range
N/A
No swivel
Tilt Range
-20° to 5°
-20° to 5°
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.4" (1.0 cm)
0.7" (1.8 cm)
Thickness
Thickness Picture
Thickness (with stand)
5.7" (14.5 cm)
4.8" (12.2 cm)
Thickness (without stand)
1.5" (3.8 cm)
2.0" (5.1 cm)
Build Quality
6.5
7.5
Build Quality Picture
Picture Quality
Contrast
6.3
5.3
Checkerboard Picture
LCD Type
IPS
TN
Native Contrast
1,165 : 1
688 : 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
Edge
Direct
SDR Peak Brightness
7.6
7.3
SDR Real Scene
313 cd/m²
278 cd/m²
SDR Peak 2% Window
327 cd/m²
287 cd/m²
SDR Peak 10% Window
328 cd/m²
292 cd/m²
SDR Peak 25% Window
329 cd/m²
293 cd/m²
SDR Peak 50% Window
329 cd/m²
293 cd/m²
SDR Peak 100% Window
329 cd/m²
293 cd/m²
SDR Sustained 2% Window
243 cd/m²
287 cd/m²
SDR Sustained 10% Window
239 cd/m²
291 cd/m²
SDR Sustained 25% Window
251 cd/m²
292 cd/m²
SDR Sustained 50% Window
285 cd/m²
292 cd/m²
SDR Sustained 100% Window
327 cd/m²
292 cd/m²
SDR ABL
0.000
0.001
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
Horizontal Viewing Angle
6.8
6.4
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
32°
Color Washout From Right
38°
Horizontal Color Shift Picture
Horizontal Hue Graph
Color Shift From Left
35°
29°
Color Shift From Right
39°
26°
Horizontal Brightness Picture
Horizontal Black Level Picture
Horizontal Lightness Graph
Brightness Loss From Left
41°
46°
Brightness Loss From Right
35°
50°
Black Level Raise From Left
75°
25°
Black Level Raise From Right
75°
29°
Curve Radius
N/A
Gamma Shift From Left
28°
Gamma Shift From Right
26°
Vertical Viewing Angle
8.2
5.4
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
13°
Color Washout From Above
68°
Vertical Color Shift Picture
Vertical Hue Graph
Color Shift From Below
30°
21°
Color Shift From Above
25°
62°
Vertical Brightness Picture
Vertical Black Level Picture
Vertical Lightness Graph
Brightness Loss From Below
38°
25°
Brightness Loss From Above
34°
50°
Black Level Raise From Below
75°
23°
Black Level Raise From Above
75°
32°
Gamma Shift From Below
3°
Gamma Shift From Above
3°
Gray Uniformity
8.6
7.2
50% Uniformity Picture
50% Std. Dev.
3.111%
7.297%
50% DSE
0.111%
0.142%
5% Uniformity Picture
5% Std. Dev.
0.377%
1.012%
5% DSE
0.042%
0.094%
Black Uniformity
4.8
3.9
Native Black Uniformity Picture
Native Std. Dev.
2.778%
3.438%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Pre Calibration
8.4
4.0
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Custom
Custom
Luminance
318 cd/m²
405 cd/m²
Luminance Settings
100
100
Contrast Setting
70
75
RGB Controls
50-50-50
Custom (50-50-50)
Gamma Setting
No Gamma Setting
Color Temperature
6,563 K
7,562 K
White Balance dE
1.68
6.97
Color dE
2.65
4.95
Gamma
2.09
2.05
Post Calibration
9.4
9.4
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom
Custom
Luminance
100 cd/m²
98 cd/m²
Luminance Settings
10
17
Contrast Setting
70
71
RGB Controls
53-50-50
50-31-30
Gamma Setting
No Gamma Setting
Color Temperature
6,374 K
6,500 K
White Balance dE
0.88
0.61
Color dE
0.71
1.20
Gamma
2.27
2.15
SDR Color Gamut
8.8
8.4
Color Gamut sRGB Picture
sRGB xy
97.8%
96.7%
Color Gamut ARGB Picture
Adobe RGB xy
76.5%
70.4%
sRGB Picture Mode
Custom
Adobe RGB Picture Mode
Custom
SDR Color Volume
8.9
8.0
sRGB Color Volume ITP Picture
sRGB In ICtCp
95.8%
87.6%
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
81.8%
71.0%
sRGB Picture Mode
Custom
Adobe RGB Picture Mode
Custom
HDR Color Gamut
0.0
0.0
Wide Color Gamut
No
N/A
Color Gamut DCI-P3 Picture
DCI P3 xy
N/A
N/A
Color Gamut Rec.2020 Picture
Rec. 2020 xy
N/A
N/A
DCI P3 Picture Mode
No HDR
Rec. 2020 Picture Mode
No HDR
HDR Color Volume
0.0
0.0
P3 Color Volume ITP Picture
DCI-P3 In ICtCp
N/A
N/A
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
Image Retention
1.9
10
Image Retention Picture
IR After 0 Min Recovery
1.11%
0.00%
IR After 2 Min Recovery
0.41%
0.00%
IR After 4 Min Recovery
0.12%
0.00%
IR After 6 Min Recovery
0.09%
0.00%
IR After 8 Min Recovery
0.06%
0.00%
IR After 10 Min Recovery
0.00%
0.00%
Gradient
9.9
9.8
Gradient Picture
Color Depth
10 Bit
10 Bit
Color Bleed
10
9.9
Color Bleed Horizontal
Pixel Row Error
0.000%
0.007%
Color Bleed Vertical
Pixel Column Error
0.000%
0.008%
Reflections
7.0
7.5
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Total Reflections
5.1%
Indirect Reflections
2.8%
Calculated Direct Reflections
2.3%
Text Clarity
9.5
ClearType On
Pixel Type
IPS
TN
ClearType Off
Pixels
Sub-Pixel Layout
RGB
Motion
Response Time @ Max Refresh Rate
8.4
7.9
Motion Blur Picture
Motion Blur Picture
Response Time Chart
Response Time Table
Best Overdrive Setting
Middle
Faster
Rise / Fall Time
5.0 ms
7.4 ms
Total Response Time
16.6 ms
16.6 ms
Overshoot Error
0.2%
Dark Rise / Fall Time
7.0 ms
Dark Total Response Time
11.3 ms
Dark Overshoot Error
0.0%
Response Time @ 60Hz
7.9
Motion Blur Picture
Response Time Table
Best Overdrive Setting
Faster
Rise / Fall Time
7.4 ms
Total Response Time
16.6 ms
Overshoot Error
0.2%
Dark Rise / Fall Time
7.0 ms
Dark Total Response Time
11.3 ms
Dark Overshoot Error
0.0%
Image Flicker
7.5
6.0
Backlight Picture
Flicker-Free
Yes
No
PWM Dimming Frequency
0 Hz
240 Hz
Black Frame Insertion (BFI)
No
No BFI
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
BFI Picture
BFI Frequency Picture
BFI Maximum Frequency
N/A
N/A
BFI Minimum Frequency
N/A
N/A
Refresh Rate
7.8
7.4
Variable Refresh Rate
FreeSync
FreeSync
Native
60 Hz
Max Refresh Rate
60 Hz
60 Hz
Factory Overclock
N/A
Variable Refresh Rate
FreeSync
Yes
FreeSync
Yes
G-SYNC
Yes
No
VRR Maximum
60 Hz
60 Hz
VRR Minimum
40 Hz
40 Hz
VRR Maximum With OC
N/A
VRR Supported Connectors
DisplayPort
DisplayPort
Inputs
Input Lag
8.9
8.9
Native Resolution
9.3 ms
9.0 ms
Non-Native Res @ Native Refresh
9.3 ms
Native Resolution @ 60Hz
9.3 ms
9.0 ms
Variable Refresh Rate
8.7 ms
9.8 ms
Variable Refresh Rate @ 60Hz
9.8 ms
10 Bit HDR
N/A
N/A
Black Frame Insertion (BFI)
N/A
N/A
Resolution And Size
9.1
9.2
Native Resolution
3840 x 2160
3840 x 2160
Aspect Ratio
16:9
16:9
Megapixels
8.3 MP
8.3 MP
Pixel Density
164 PPI
161 PPI
Screen Diagonal
26.9"
27.9"
Screen Area
310 in²
327 in²
Inputs
Inputs 1
Inputs 2
Total Inputs
DisplayPort
1 (DP 1.2)
1 (DP 1.2)
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
1 (HDMI 2.0), 1 (HDMI 1.4)
DVI
No
No
VGA
No
No
DisplayPort Out
No
No
USB
No
No
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
External Brick
External Brick
Features
Additional Features
RGB Illumination
No
Speakers
No
No
HDR10
No
No
Multiple Input Display
PBP
PIP + PBP
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Check Price
27" Black
27UD68P-B
Searching
Finding store24"
U24E590D
Searching
Finding store27" White
27UD68-W
Searching
Finding store28"
U28E590D
Searching
Finding store
LG 27UD68-B
Samsung UE590
Comments
LG 27UD68-B vs Samsung UE590: Main Discussion
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