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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
ASUS ROG Strix XG27AQ vs LG 27GP850-B/27GP83B-B
Side-by-Side Comparison
Products
ASUS ROG Strix XG27AQ
LG 27GP850-B/27GP83B-B
Tested using Methodology v1.2
Updated May 24, 2024 06:22 PM
SEE PRICE
Amazon.comTested using Methodology v2.0.1
Updated Feb 19, 2025 04:46 PM
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BestBuy.com
Max Refresh Rate170 Hz
Size27"
Pixel TypeIPS
Native Resolution2560 x 1440
Variable Refresh RateYes
HDR10Yes
Max Refresh Rate180 Hz
Size27"
Pixel TypeIPS
Native Resolution2560 x 1440
Variable Refresh RateYes
HDR10Yes
Variants
- ROG Strix XG27AQ (27")
- ROG Strix XG27AQ-W (27")
- 27GP850-B (27")
- 27GP83B-B (27")
Our Verdict
ASUS ROG Strix XG27AQ
LG 27GP850-B/27GP83B-B
The ASUS ROG Strix XG27AQ is better than the LG 27GP850-B/27GP83B-B for most uses, but the difference is very minor. The ASUS has better ergonomics, as the stand can swivel, and it has a slightly better height and tilt range. The ASUS seems to be better built and has RGB bias-lighting on the back. On the other hand, the LG is brighter, and it has a slightly faster response time.
Check Price
27"
ROG Strix XG27AQ
Searching
Finding store27"
27GP850-B
Searching
Finding store27"
ROG Strix XG27AQ-W
Searching
Finding store27"
27GP83B-B
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
7.9
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
8.0
7.0
Build Quality Picture
Ergonomics
8.5
7.5
Ergonomics Picture
Back Picture
Height Adjustment
4.7" (12.0 cm)
4.3" (11.0 cm)
Min Height To Top Of Panel
18.0" (45.8 cm)
Tilt Range
-20° to 5°
-15° to 5°
Rotate Portrait/Landscape
Yes, Clockwise
Yes, Clockwise
Swivel Range
-25° to 25°
No swivel
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
24.4" (62.1 cm)
16.7" (42.5 cm)
Base Depth
10.4" (26.3 cm)
11.5" (29.3 cm)
Thickness (With Display)
10.9" (27.7 cm)
8.9" (22.6 cm)
Weight (With Display)
19.6 lbs (8.9 kg)
13.7 lbs (6.2 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.1" (61.1 cm)
24.2" (61.5 cm)
Housing Height
14.4" (36.5 cm)
14.4" (36.5 cm)
Thickness (Without Stand)
3.4" (8.6 cm)
2.0" (5.1 cm)
Weight (Without Stand)
11.7 lbs (5.3 kg)
9.0 lbs (4.1 kg)
Borders Size (Bezels)
0.3" (0.8 cm)
0.3" (0.8 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
External Brick
External Brick
Picture Quality
Contrast
6.2
5.6
Checkerboard Picture
Native Contrast
1,121 : 1
807 : 1
Contrast With Local Dimming
1,117 : 1
N/A
Local Dimming
1.0
0.0
Local Dimming Video
Local Dimming
Yes
No
Backlight
Edge
Edge
SDR Brightness
7.2
8.0
Real Scene
269 cd/m²
349 cd/m²
Peak 2% Window
223 cd/m²
364 cd/m²
Peak 10% Window
274 cd/m²
364 cd/m²
Peak 25% Window
280 cd/m²
365 cd/m²
Peak 50% Window
295 cd/m²
365 cd/m²
Peak 100% Window
297 cd/m²
365 cd/m²
Sustained 2% Window
221 cd/m²
364 cd/m²
Sustained 10% Window
274 cd/m²
364 cd/m²
Sustained 25% Window
280 cd/m²
364 cd/m²
Sustained 50% Window
295 cd/m²
365 cd/m²
Sustained 100% Window
297 cd/m²
365 cd/m²
Automatic Brightness Limiting (ABL)
0.018
0.000
Minimum Brightness
44 cd/m²
22 cd/m²
HDR Brightness
6.5
7.1
EOTF
VESA DisplayHDR Certification
DisplayHDR 400 - 1.0/1.1
DisplayHDR 400 - 1.0/1.1
Real Scene
349 cd/m²
465 cd/m²
Peak 2% Window
309 cd/m²
471 cd/m²
Peak 10% Window
378 cd/m²
472 cd/m²
Peak 25% Window
387 cd/m²
473 cd/m²
Peak 50% Window
406 cd/m²
473 cd/m²
Peak 100% Window
408 cd/m²
472 cd/m²
Sustained 2% Window
305 cd/m²
470 cd/m²
Sustained 10% Window
376 cd/m²
471 cd/m²
Sustained 25% Window
384 cd/m²
472 cd/m²
Sustained 50% Window
404 cd/m²
472 cd/m²
Sustained 100% Window
407 cd/m²
472 cd/m²
Automatic Brightness Limiting (ABL)
0.017
0.000
Horizontal Viewing Angle
8.8
8.4
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
46°
45°
Color Washout From Right
50°
45°
Horizontal Hue Graph
Color Shift From Left
67°
52°
Color Shift From Right
57°
53°
Horizontal Lightness Graph
Brightness Loss From Left
50°
48°
Brightness Loss From Right
51°
49°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
63°
58°
Gamma Shift From Right
63°
57°
Vertical Viewing Angle
6.8
6.3
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
31°
30°
Color Washout From Above
35°
34°
Vertical Hue Graph
Color Shift From Below
47°
25°
Color Shift From Above
38°
39°
Vertical Lightness Graph
Brightness Loss From Below
38°
37°
Brightness Loss From Above
40°
40°
Black Level Raise From Below
48°
22°
Black Level Raise From Above
44°
37°
Gamma Shift From Below
34°
27°
Gamma Shift From Above
34°
34°
Gray Uniformity
8.3
8.0
50% Uniformity Picture
50% Std. Dev.
2.082%
2.607%
50% DSE
0.137%
0.147%
Black Uniformity
6.5
5.7
Native Black Uniformity Picture
Native Std. Dev.
1.107%
2.189%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
4.699%
N/A
Color Accuracy (Pre-Calibration)
8.6
8.5
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
sRGB
sRGB
sRGB Gamut Area xy
99.5%
101.4%
White Balance dE (Avg.)
3.49
3.35
Color Temperature (Avg.)
6,466 K
5,950 K
Gamma (Avg.)
2.23
2.05
Color dE (Avg.)
2.24
2.54
Contrast Setting
N/A
70
RGB Settings
Default
Default
Gamma Setting
Default
Default
Brightness Setting
N/A
22
Measured Brightness
173 cd/m²
119 cd/m²
Brightness Locked
Yes
No
Color Accuracy (Post-Calibration)
9.8
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Racing Mode
Gamer 1
sRGB Gamut Area xy
99.3%
101.3%
White Balance dE (Avg.)
0.42
0.64
Color Temperature (Avg.)
6,491 K
6,499 K
Gamma (Avg.)
2.18
2.18
Color dE (Avg.)
0.38
0.37
Contrast Setting
80
68
RGB Settings
100-94-94
50-50-47
Gamma Setting
2.2
Mode 2
Brightness Setting
13
21
Measured Brightness
98 cd/m²
99 cd/m²
SDR Color Gamut
9.4
9.6
sRGB Color Gamut Picture
sRGB Coverage xy
99.1%
99.9%
sRGB Picture Mode
Racing
Gamer 1
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
84.6%
88.1%
Adobe RGB Picture Mode
Racing
Gamer 1
HDR Color Gamut
8.5
8.8
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
93.3%
95.6%
DCI-P3 Picture Mode
Asus Gaming HDR
Gamer 1
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
69.8%
70.4%
Rec. 2020 Picture Mode
Asus Gaming HDR
Gamer 1
HDR Color Volume
7.5
7.4
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
75.7%
64.8%
DCI-P3 Picture Mode
Asus Gaming HDR
Gamer 1
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
68.5%
29.1%
Rec. 2020 Picture Mode
Asus Gaming HDR
Gamer 1
Text Clarity
7.5
7.5
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Reflections
7.5
7.6
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.2%
5.2%
Indirect Reflections
2.9%
3.2%
Calculated Direct Reflections
2.3%
2.0%
Gradient
9.2
9.6
Gradient Picture
Color Depth
10 Bit
10 Bit
SDR Color Volume
9.7
sRGB Color Volume ITP Picture
sRGB In ICtCp
99.1%
sRGB Picture Mode
Racing
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
90.7%
Adobe RGB Picture Mode
Racing
Motion
Refresh Rate
8.6
7.7
Native Refresh Rate
144 Hz
165 Hz
Max Refresh Rate
170 Hz
180 Hz
Max Refresh Rate Over DP
170 Hz
180 Hz
Max Refresh Rate Over HDMI
144 Hz
144 Hz
Max Refresh Rate Over DP @ 10-bit
120 Hz
180 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
60 Hz
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Compatible (Tested)
Yes
G-SYNC
Compatible (NVIDIA Certified)
Compatible (NVIDIA Certified)
VRR Maximum
170 Hz
180 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
8.2
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
Normal
Variable Overdrive Advertised
No
Avg. CAD
151
Best CAD
150
Worst CAD
152
Refresh Rate Compliance
7.9
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
52%
Compliance @ 120 FPS
65%
Compliance @ 60 FPS
82%
Response Time @ 60Hz
8.0
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Level 0
Normal
Rise / Fall Time
5.1 ms
5.6 ms
Total Response Time
12 ms
6.7 ms
Overshoot Error
0.0%
1 RGB
Worst 3 Rise / Fall Time
7.3 ms
8.3 ms
Worst 3 Total Response Time
17.5 ms
17.6 ms
Worst 3 Overshoot Error
0.0%
6 RGB
CAD @ Max Refresh Rate
8.2
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD fast
0 to 31
Recommended Overdrive Setting
Fast
Avg. CAD
131
Best 10% CAD
66
Worst 10% CAD
221
Response Time @ Max Refresh Rate
First Response Time
3.6 ms
4.7 ms
Total Response Time
7.3 ms
5.5 ms
Recommended Overdrive Setting
Level 1
Fast
Motion Blur Picture
RGB Overshoot
2.1%
1 RGB
Worst 10% RGB Overshoot
10.2%
6 RGB
Worst 10% First Response Time
6.0 ms
9.7 ms
Worst 10% Total Response Time
11.1 ms
9.7 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
Response Time Table
CAD @ 120Hz
8.0
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
OD fast
0 to 31
Recommended Overdrive Setting
Fast
Avg. CAD
142
Best 10% CAD
88
Worst 10% CAD
211
Response Time @ 120Hz
Worst 10% First Response Time
5.8 ms
6.8 ms
RGB Overshoot
3.9%
7 RGB
Total Response Time
9.3 ms
9.6 ms
First Response Time
3.5 ms
4.2 ms
Recommended Overdrive Setting
Level 1
Fast
Worst 10% Total Response Time
13.3 ms
11.7 ms
Worst 10% RGB Overshoot
15.1%
10 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
Motion Blur Picture
Response Time Table
CAD @ 60Hz
8.0
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD fast
0 to 31
Recommended Overdrive Setting
Normal
Avg. CAD
147
Best 10% CAD
79
Worst 10% CAD
227
Response Time @ 60Hz
Recommended Overdrive Setting
Level 0
Normal
First Response Time
5.1 ms
5.6 ms
Total Response Time
12 ms
6.7 ms
RGB Overshoot
0.0%
1 RGB
Worst 10% Total Response Time
17.5 ms
17.6 ms
Worst 10% First Response Time
7.3 ms
8.3 ms
Worst 10% RGB Overshoot
0.0%
6 RGB
60Hz First Response Heatmap
60Hz Total Response Heatmap
60Hz RGB Overshoot Heatmap
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
Yes
Yes
Maximum Frequency
170 Hz
165 Hz
Minimum Frequency
80 Hz
120 Hz
Longest Pulse Width Brightness
160 cd/m²
136 cd/m²
Shortest Pulse Width Brightness
160 cd/m²
136 cd/m²
Pulse Width Control
No
No
Pulse Phase Control
No
No
Pulse Amplitude Control
No
Yes
VRR At The Same Time
Yes
No
VRR Flicker
8.2
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
1.0 RGB
Middle Gray Flicker
1.8 RGB
Light Gray Flicker
1.8 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
9.1
9.0
Native Resolution @ Max Hz
3.2 ms
3.6 ms
Native Resolution @ 120Hz
4.4 ms
4.9 ms
Native Resolution @ 60Hz
8.4 ms
9.1 ms
Backlight Strobing (BFI)
3.3 ms
4.4 ms
Resolution
8.0
7.5
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
PS5 Compatibility
7.0
4.9
PS5 Compatibility Photo
PS5 Compatibility Table
4k @ 120Hz
No
No
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
Yes
VRR
No
Xbox Series X|S Compatibility
9.2
7.1
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
No
No
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
Yes
VRR
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.2)
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
2 (HDMI 2.0)
HDMI 2.1 Bandwidth
No HDMI 2.1
No HDMI 2.1
DVI
No
No
VGA
No
No
Daisy Chaining
No
No
3.5mm Audio Out
1
1
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)
2
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
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
No
RGB Illumination
Controllable
No
Multiple Input Display
No
No
KVM Switch
No
No
On-Screen Display (OSD)
OSD Picture
Check Price
27"
ROG Strix XG27AQ
Searching
Finding store27"
27GP850-B
Searching
Finding store27"
ROG Strix XG27AQ-W
Searching
Finding store27"
27GP83B-B
Searching
Finding store
ASUS ROG Strix XG27AQ
LG 27GP850-B/27GP83B-B
Comments
ASUS ROG Strix XG27AQ vs LG 27GP850-B/27GP83B-B: Main Discussion
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