Products
ASUS ROG Strix XG27ACS
Xiaomi G Pro 27i
Tested using Methodology v2.1.1
Updated Nov 07, 2025 02:09 PM
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Tested using Methodology v2.1.1
Updated Nov 07, 2025 02:09 PM
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Max Refresh Rate
180 Hz
Size
27"
Pixel Type
IPS
Native Resolution
2560 x 1440
Max Refresh Rate
180 Hz
Size
27"
Pixel Type
IPS
Native Resolution
2560 x 1440
Our Verdict
ASUS ROG Strix XG27ACS
Xiaomi G Pro 27i
The Xiaomi G Pro 27i and the ASUS ROG Strix XG27ACS are both entry-level 1440p gaming monitors. There are a few differences between them, though, as the Xiaomi delivers much better picture quality. The Xiaomi uses Mini LED local dimming that helps improve the contrast ratio for deeper blacks with brighter highlights, whereas blacks look gray on the ASUS. The Xiaomi also displays a wider range of colors in HDR, making it the better choice for HDR gaming. The ASUS has a few extra features, though, like a USB-C port with DisplayPort Alt Mode, which allows you to easily connect a laptop to the monitor.
Variants
- ROG Strix XG27ACS (27")
- ROG Strix XG27ACS-W (27")
- G Pro 27i (27")
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27"
ROG Strix XG27ACS
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27"
G Pro 27i
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27"
ROG Strix XG27ACS-W
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27"
G Pro 27i
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G Pro 27i
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G Pro 27i
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Main Differences for
PC Gaming
PC Gaming
Threshold
PC Gaming
7.3
7.9
Local Dimming
0.0
7.5
Full Comparison
Design
Style
Design Picture
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Curved
No
No
Curve Radius
Not Curved
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
8.0
8.0
Build Quality Picture
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Ergonomics
9.0
8.7
Ergonomics Picture
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Back Picture
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Height Adjustment
4.6" (11.8 cm)
4.5" (11.5 cm)
Min Height To Top Of Panel
15.2" (38.6 cm)
15.8" (40.2 cm)
Tilt Range
-20° to 2.5°
-15° to 7.5°
Rotate Portrait/Landscape
Yes, Both Ways
Yes, Both Ways
Swivel Range
-45° to 45°
-35° to 35°
Wall Mount
VESA 100x100
VESA 75x75
Stand
Stand Picture
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Thickness Picture
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Base Width
10.7" (27.3 cm)
18.5" (47.0 cm)
Base Depth
8.6" (21.9 cm)
9.5" (24.2 cm)
Thickness (With Display)
6.7" (17.0 cm)
6.8" (17.3 cm)
Weight (With Display)
14.6 lbs (6.6 kg)
15.0 lbs (6.8 kg)
Display
Display Picture
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Size
27"
27"
Housing Width
24.2" (61.5 cm)
24.2" (61.5 cm)
Housing Height
14.4" (36.7 cm)
14.4" (36.6 cm)
Thickness (Without Stand)
2.2" (5.5 cm)
3.1" (8.0 cm)
Weight (Without Stand)
8.7 lbs (3.9 kg)
10.8 lbs (4.9 kg)
Borders Size (Bezels)
0.3" (0.9 cm)
0.4" (1.0 cm)
Controls
Controls Picture
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In The Box
In The Box Picture
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Power Supply
Internal
External Brick
Picture Quality
Contrast
6.2
7.4
Checkerboard Picture
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Native Contrast
1,155 : 1
1,488 : 1
Contrast With Local Dimming
N/A
8,208 : 1
Local Dimming
0.0
7.5
Local Dimming Video
Local Dimming
No
Yes
Backlight
Edge
Full-Array
SDR Brightness
8.2
8.9
Real Scene
392 cd/m²
773 cd/m²
Peak 2% Window
412 cd/m²
590 cd/m²
Peak 10% Window
414 cd/m²
781 cd/m²
Peak 25% Window
414 cd/m²
836 cd/m²
Peak 50% Window
414 cd/m²
869 cd/m²
Peak 100% Window
414 cd/m²
891 cd/m²
Sustained 2% Window
411 cd/m²
589 cd/m²
Sustained 10% Window
413 cd/m²
772 cd/m²
Sustained 25% Window
413 cd/m²
830 cd/m²
Sustained 50% Window
414 cd/m²
865 cd/m²
Sustained 100% Window
414 cd/m²
889 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.022
Minimum Brightness
36 cd/m²
45 cd/m²
HDR Brightness
6.9
9.0
EOTF
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VESA DisplayHDR Certification
DisplayHDR 400 - 1.0/1.1
DisplayHDR 1000
Real Scene
414 cd/m²
1,006 cd/m²
Peak 2% Window
436 cd/m²
879 cd/m²
Peak 10% Window
439 cd/m²
1,214 cd/m²
Peak 25% Window
439 cd/m²
1,302 cd/m²
Peak 50% Window
439 cd/m²
1,354 cd/m²
Peak 100% Window
439 cd/m²
1,250 cd/m²
Sustained 2% Window
436 cd/m²
876 cd/m²
Sustained 10% Window
438 cd/m²
1,193 cd/m²
Sustained 25% Window
438 cd/m²
1,284 cd/m²
Sustained 50% Window
438 cd/m²
1,347 cd/m²
Sustained 100% Window
438 cd/m²
1,044 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.022
Gray Uniformity
7.7
7.7
50% Uniformity Picture
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50% Std. Dev.
3.733%
3.434%
50% DSE
0.149%
0.153%
Black Uniformity
6.8
6.0
Native Black Uniformity Picture
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Native Std. Dev.
1.479%
2.472%
Black Uniformity Picture With Local Dimming
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Std. Dev. w/ L.D.
N/A
0.500%
Color Accuracy (Pre-Calibration)
9.3
8.2
Pre Calibration Picture
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Pre Gamma Curve Picture
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Pre Color Picture
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Picture Mode
sRGB Mode
Movie (sRGB)
sRGB Gamut Area xy
101.5%
99.8%
White Balance dE (Avg.)
1.80
4.54
Color Temperature (Avg.)
6,422 K
6,489 K
Gamma (Avg.)
2.17
2.22
Color dE (Avg.)
0.99
2.61
Contrast Setting
N/A
75
RGB Settings
Default
Default
Gamma Setting
Default
Default
Brightness Setting
25
50
Measured Brightness
134 cd/m²
461 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.8
9.7
Post Calibration Picture
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Post Gamma Curve Picture
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Post Color Picture
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Picture Mode
User Mode
Movie (Native)
sRGB Gamut Area xy
101.0%
99.2%
White Balance dE (Avg.)
0.53
0.73
Color Temperature (Avg.)
6,501 K
6,479 K
Gamma (Avg.)
2.18
2.18
Color dE (Avg.)
0.29
0.45
Contrast Setting
80
75
RGB Settings
100-96-91
50-49-49
Gamma Setting
2.2
2.4
Brightness Setting
17
4
Measured Brightness
101 cd/m²
97 cd/m²
SDR Color Gamut
9.5
9.8
sRGB Color Gamut Picture
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sRGB Coverage xy
100.0%
99.2%
sRGB Picture Mode
User Mode
Movie (Native)
Adobe RGB Color Gamut Picture
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Adobe RGB Coverage xy
85.0%
97.5%
Adobe RGB Picture Mode
User Mode
Movie (Native)
HDR Color Gamut
8.2
9.5
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
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DCI-P3 Coverage xy
91.1%
98.9%
DCI-P3 Picture Mode
Console HDR
HDR
Rec. 2020 Color Gamut Picture
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Rec. 2020 Coverage xy
67.3%
81.9%
Rec. 2020 Picture Mode
Console HDR
HDR
HDR Color Volume
7.5
8.9
DCI-P3 Color Volume ITP Picture
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1,000 cd/m² DCI-P3 Coverage ICtCp
67.3%
91.3%
DCI-P3 Picture Mode
Console HDR
HDR
Rec. 2020 Color Volume ITP Picture
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10,000 cd/m² Rec. 2020 Coverage ICtCp
30.5%
47.0%
Rec. 2020 Picture Mode
Console HDR
HDR
Viewing Angle
8.0
6.9
Viewing Angle Video
Chroma Graph
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Color Washout From Left
32°
26°
Color Washout From Right
31°
28°
Hue Graph
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Color Shift From Left
53°
48°
Color Shift From Right
56°
44°
Lightness Graph
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Brightness Loss From Left
44°
30°
Brightness Loss From Right
38°
31°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
60°
32°
Gamma Shift From Right
58°
35°
Text Clarity
7.5
7.5
ClearType On
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ClearType Off
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Pixel Type
IPS
IPS
Pixels
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Subpixel Layout
RGB
RGB
Direct Reflections
7.3
7.4
Ring Light Picture
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Direct Reflections Graph
Peak Direct Reflection Intensity
21.9%
20.6%
Screen Finish
Matte
Matte
Ambient Black Level Raise
6.9
6.9
Black Level Raise Picture
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Ambient Black Level Raise Graph
Black Luminance @ 0 lx
0.35 cd/m²
0.00 cd/m²
Black Luminance @ 1000 lx
1.62 cd/m²
1.63 cd/m²
Total Reflected Light
6.4
6.5
Bright Room Off Picture
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Total Reflection Ring Light Picture
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Total Reflected Light Intensity
27,449% ⋅ pixel
26,457% ⋅ pixel
Diffraction Artifacts
No
No
Gradient
9.8
9.6
Gradient Picture
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Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
7.7
7.7
Native Refresh Rate
180 Hz
180 Hz
Max Refresh Rate
180 Hz
180 Hz
Max Refresh Rate Over DP
180 Hz
180 Hz
Max Refresh Rate Over HDMI
144 Hz
144 Hz
Max Refresh Rate Over DP @ 10-bit
180 Hz
180 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
60 Hz
DSC Toggle
No
No
DSC Off Max Refresh Rate Over DP
N/A
N/A
DSC Off Max Refresh Rate Over HDMI
N/A
N/A
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Yes
Compatible (Tested)
G-SYNC
Compatible (NVIDIA Certified)
Compatible (Tested)
VRR Maximum
180 Hz
180 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
8.2
7.8
Pursuit Photo VRR
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OD Mode CAD Comparison
Recommended VRR OD Setting
Level 9
Fast
Variable Overdrive Advertised
Yes
No
Avg. CAD
144
168
Best CAD
125
156
Worst CAD
161
198
Refresh Rate Compliance
7.8
7.7
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
52%
47%
Compliance @ 120 FPS
64%
63%
Compliance @ 60 FPS
79%
77%
CAD @ Max Refresh Rate
8.2
8.0
Pursuit Photo At Max Refresh
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CAD Heatmap At Max Refresh
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OD Transition Max Refresh Rate
OD level0
0 to 31
OD fast
0 to 31
Recommended Overdrive Setting
Level 9
Faster
Avg. CAD
125
148
Best 10% CAD
70
79
Worst 10% CAD
209
226
Response Time @ Max Refresh Rate
First Response Time
3.6 ms
4.7 ms
Total Response Time
6.8 ms
5.5 ms
Recommended Overdrive Setting
Level 9
Faster
RGB Overshoot
7 RGB
2 RGB
Worst 10% RGB Overshoot
15 RGB
12 RGB
Worst 10% First Response Time
6.3 ms
8.0 ms
Worst 10% Total Response Time
9.5 ms
9.3 ms
Heatmap First Response
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Heatmap Total Response
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Heatmap RGB Overshoot
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CAD @ 120Hz
8.0
7.8
Pursuit Photo 120Hz
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CAD Heatmap 120Hz
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OD Transition 120Hz
OD level0
0 to 31
OD fast
0 to 31
Recommended Overdrive Setting
Level 9
Faster
Avg. CAD
143
160
Best 10% CAD
78
85
Worst 10% CAD
233
247
Response Time @ 120Hz
Worst 10% First Response Time
6.8 ms
6.9 ms
RGB Overshoot
4 RGB
3 RGB
Total Response Time
7.5 ms
6.9 ms
First Response Time
4.7 ms
5.0 ms
Recommended Overdrive Setting
Level 9
Faster
Worst 10% Total Response Time
12.0 ms
12.6 ms
Worst 10% RGB Overshoot
12 RGB
14 RGB
120Hz First Response Heatmap
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120Hz Total Response Heatmap
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120Hz Heatmap RGB Overshoot
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CAD @ 60Hz
7.7
7.6
Pursuit Photo 60Hz
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CAD Heatmap 60Hz
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OD Transition 60Hz
OD level0
0 to 31
OD fast
0 to 31
Recommended Overdrive Setting
Level 9
Faster
Avg. CAD
161
175
Best 10% CAD
86
90
Worst 10% CAD
267
258
Response Time @ 60Hz
Recommended Overdrive Setting
Level 9
Faster
First Response Time
5.7 ms
6.4 ms
Total Response Time
8.6 ms
7.9 ms
RGB Overshoot
2 RGB
1 RGB
Worst 10% Total Response Time
19.5 ms
19.4 ms
Worst 10% First Response Time
7.7 ms
8.9 ms
Worst 10% RGB Overshoot
10 RGB
6 RGB
60Hz First Response Heatmap
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60Hz Total Response Heatmap
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60Hz RGB Overshoot Heatmap
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Backlight Strobing (BFI)
Backlight Strobing Picture
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Backlight Strobing Frequency Picture
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Backlight Strobing (BFI)
Yes
No BFI
Maximum Frequency
180 Hz
N/A
Minimum Frequency
80 Hz
N/A
Longest Pulse Width Brightness
247 cd/m²
N/A
Shortest Pulse Width Brightness
84 cd/m²
N/A
Pulse Width Control
Yes
No BFI
Pulse Phase Control
Yes
No BFI
Pulse Amplitude Control
No
No BFI
VRR At The Same Time
Yes
No BFI
VRR Flicker
8.1
9.2
VRR Flicker Video
VRR Flicker Graph
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Dark Gray Flicker
1.2 RGB
0.7 RGB
Middle Gray Flicker
1.8 RGB
0.3 RGB
Light Gray Flicker
1.7 RGB
0.6 RGB
Image Flicker
10
10
Backlight Picture
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Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
>1000 Hz
Inputs
Input Lag
8.9
9.1
Native Resolution @ Max Hz
4.1 ms
3.2 ms
Native Resolution @ 120Hz
5.7 ms
4.6 ms
Native Resolution @ 60Hz
10.0 ms
8.7 ms
Backlight Strobing (BFI)
4.9 ms
N/A
Resolution
7.5
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
PS5 Compatibility
6.6
5.0
PS5 Compatibility Photo
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PS5 Compatibility Table
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4k @ 120Hz
No
No
4k @ 60Hz
Yes
No
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
Xbox Series X|S Compatibility
7.1
5.0
XSX Compatibility Photo
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XSX Compatibility Table
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4k @ 120Hz
No
No
4k @ 60Hz
Yes
No
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
Inputs
Inputs 1
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Inputs 2
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DisplayPort
1 (DP 1.4)
2 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
No DisplayPort 2.1
Mini DisplayPort
No
No
HDMI
1 (HDMI 2.0)
2 (HDMI 2.0)
HDMI 2.1 Bandwidth
No HDMI 2.1
No HDMI 2.1
Daisy Chaining
No
No
3.5mm Audio Out
Yes
Yes
Ethernet
No
No
HDR10
Yes
Yes
Dolby Vision
No
No
USB
USB-A Ports
0
0
USB-A Rated Speed
No USB-A Ports
No USB-A Ports
USB-B Upstream Port
No
No
USB-C Ports
1
0
USB-C Upstream
Yes
No USB-C Ports
USB-C Rated Speed
5Gbps (USB 3.2 Gen 1)
No USB-C Ports
USB-C Power Delivery
5W
No USB-C Ports
USB-C DisplayPort Alt Mode
Yes
No USB-C Ports
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
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Features
Additional Features
Speakers
No
No
RGB Illumination
No
Controllable
Multiple Input Display
No
No
KVM Switch
No
No
Smart OS
No
No
On-Screen Display (OSD)
OSD Picture
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Compare High-Res
Check Price
27"
ROG Strix XG27ACS
SEE PRICE
Amazon.com
27"
G Pro 27i
SEARCH
Amazon.com
27"
ROG Strix XG27ACS-W
SEARCH
Amazon.com
27"
G Pro 27i
SEE PRICE
Walmart.com
27"
G Pro 27i
SEARCH
B&H
27"
G Pro 27i
SEARCH
BestBuy.com
27"
G Pro 27i
SEARCH
Xiaomi
ASUS ROG Strix XG27ACS
Xiaomi G Pro 27i
Comments
ASUS ROG Strix XG27ACS vs Xiaomi G Pro 27i: Main Discussion
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