Display
27-inch, IPS, 2560 x 1440
27
Refresh Rate
48 Hz - 180 Hz
48 Hz
Brightness
400 cd/m² (peak 400 cd/m²)
400 cd
Contrast Ratio
1000 : 1
1000
Overview
With a 27-inch 2560 x 1440 IPS panel, the Asus ROG Strix XG27ACG is a gaming monitor aimed at users who want 180 Hz performance, broad adaptive-sync support and an adjustable stand. It lists 95% DCI-P3, 125% sRGB, 8-bit colour and 400 cd/m² brightness, while FreeSync and G-Sync Compatible support cover both major GPU brands. The 120 mm height range, ±90° pivot, ±45° swivel and tilt make it easier to position than many basic gaming displays. HDR is also limited because typical and peak brightness are both 400 cd/m². The 1 ms (MPRT) response claim is an MPRT figure, so treat it as a best case rather than a true pixel-transition time and the real grey-to-grey behaviour will sit behind it. Buy it if you want a flexible 1440p 180 Hz IPS monitor; skip it if verified response-time data, useful HDR or meaningful USB-C power is essential.
BrandAsusPanel TypeIPSResolution2560 x 1440Refresh Rate48 Hz - 180 Hz
Key Highlights
- 27-inch QHD IPS panel at 109 PPI
- 180 Hz maximum refresh rate
- FreeSync and G-Sync Compatible support
- 95% DCI-P3 and 125% sRGB coverage
- Height, tilt, swivel and pivot adjustments
Who Should Buy the Asus ROG Strix XG27ACG
+ Best For
QHD PC gamers
2560 x 1440 and 180 Hz offer a practical detail-and-speed balance
Radeon and GeForce users
FreeSync and G-Sync Compatible support are both listed
Flexible desk setups
the stand includes height, tilt, swivel and pivot adjustments
General mixed use
109 PPI and 95% DCI-P3 suit gaming and everyday creative tasks
× Not Ideal For
Response-time purists
the 1 ms (MPRT) figure is MPRT, not a true grey-to-grey measurement
HDR enthusiasts
typical and peak brightness are both 400 cd/m²
USB-C laptop users
power output is only 7.5 W
Speaker-dependent users
no built-in speakers are included
Display Performance
Refresh Rate
48 Hz - 180 Hz
Fast QHD refresh range
Response Time
1 ms (MPRT)
measured with backlight strobing; it describes motion persistence, not true pixel transition
Brightness
400 cd/m² typical; 400 cd/m² peak
No stated HDR highlight headroom
Contrast
1000 : 1
Standard IPS-class contrast claim
Colour Gamut
125% sRGB; 95% DCI-P3
Wide colour coverage is listed
HDR
DisplayHDR 400 / HDR10
Basic badge support without extra stated peak brightness
Gaming Performance
Refresh Rate48 Hz - 180 HzSuitable for high-frame-rate QHD gaming
Response Time1 ms (MPRT)measured with backlight strobing; it describes motion persistence, not true pixel transition
VRR / Adaptive SyncAMD FreeSync / NVIDIA G-Sync CompatibleBoth major GPU brands are covered
GPU RequirementMid-to-high-end GPU recommended2560 x 1440 at up to 180 Hz still needs strong performance
HDR & Brightness Reality
DisplayHDR 400 is mostly a compatibility badge on this hardware. The sheet lists 400 cd/m² for both typical and peak brightness, leaving no stated reserve for brighter HDR highlights. The 1,000:1 contrast ratio is also ordinary for an IPS panel. HDR10 content can be accepted, but the supplied figures do not indicate a broad luminance range.
Connectivity & Ports
HDMI1 x HDMI 2.0One HDMI input is listed
DisplayPort1 x DisplayPort 1.4 (HBR3)Main high-refresh PC connection
USB-C1 x USB upstream, DP Alt Mode, 7.5 WCarries video but provides very little power
USB HubNot publishedNo downstream USB hub ports are listed
Audio Out1 x 3.5 mmConnects headphones or external speakers
Desk Fit & Ergonomics
Size / Footprint613.7 x 489.6 x 218.8 mm with standConventional 27-inch width with a tall adjustable position
StandRemovable; 6.6 kg total weightBroad ergonomic movement is included
VESA Mount100 x 100 mmStandard monitor-arm pattern
Tilt-5° to +20°Common forward and backward range
Height Adjust120 mmUseful vertical positioning
Swivel / Pivot±45° swivel; ±90° pivotSupports side adjustment and portrait orientation
Real-World Use Cases
180 Hz and dual-brand adaptive sync suit modern PC play
109 PPI offers a useful balance of workspace and readable scaling
±90° pivot supports vertical documents and coding layouts
95% DCI-P3 and 125% sRGB are listed for broader gamut output
Pros & Cons
Pros
- 180 Hz QHD IPS panel
- FreeSync and G-Sync Compatible support
- 95% DCI-P3 and 125% sRGB coverage
- Strong height, tilt, swivel and pivot range
- DisplayPort 1.4 and USB-C video input
Cons
- MPRT response figures are strobed, so real pixel transitions are slower
- Typical and peak brightness are both 400 cd/m²
- USB-C power is limited to 7.5 W
- No built-in speakers
Score & Ratings
7.6/10
Great
Model Information
7
| Specification | Value |
|---|---|
| Brand | Asus |
| Series | ROG Strix |
| Model | ROG Strix XG27ACG |
| Model Alias | ROG Strix XG27ACG-W |
| Full Product Name | Asus ROG Strix XG27ACG |
| Model Year | 2024 |
| Available Colors | Black |
Display & Panel
5
| Specification | Value | What It Means |
|---|---|---|
| Screen Size | 27-inch | |
| Aspect Ratio | 1.778:1 | |
| Display Area | 88.88 % (percent) | |
| Panel Type | IPS | IPS is designed for broad viewing angles and consistent colour behaviour |
| Backlight Type | W-LED |
Resolution & Pixel Details
3
| Specification | Value | What It Means |
|---|---|---|
| Native Resolution | 2560 × 1440 | |
| Pixel Density | 109 PPI | 109 PPI balances detail and interface size at 27 inches |
| Pixel Pitch | 0.233 mm (millimeters) |
Picture Quality & Color
2
| Specification | Value |
|---|---|
| Panel Bit Depth | 8 bits |
| Display Colors | 16777216 colors |
Refresh Rate, Response & Gaming
1
| Specification | Value |
|---|---|
| Refresh Rate Range | 48 Hz - 180 Hz |
Ports & Connectivity
7
| Specification | Value |
|---|---|
| HDMI Ports | 1× HDMI 2.0 |
| HDMI Version | HDMI 2.0 |
| DisplayPort Input | 1× DisplayPort 1.4 |
| DisplayPort Version | DisplayPort 1.4 |
| USB-C Video Input | 1× USB-C |
| DisplayPort Alt Mode | Yes |
| HDCP Support | Yes |
Audio, Camera, Network & Smart Features
1
| Specification | Value |
|---|---|
| Built-In Camera | No |
Ergonomics & Stand
5
| Specification | Value |
|---|---|
| VESA Mount | 100 × 100 mm |
| VESA Size | 100 × 100 mm |
| Removable Stand | Yes |
| Height Adjustment | 120 mm |
| Height Range | 120 mm |
Dimensions, Weight & Design
2
| Specification | Value |
|---|---|
| Weight With Stand | 6.6 kg |
| Weight Without Stand | 3.8 kg |
Power & Operating Conditions
5
| Specification | Value |
|---|---|
| Power Input | 100–240V |
| AC Frequency | 50/60Hz |
| Typical Power Consumption | 28W |
| Average Power Consumption | 28W |
| Sleep Consumption | 0.3W |
Certifications, Standards & Licenses
2
| Specification | Value |
|---|---|
| TÜV Flicker-Free | TÜV Rheinland Flicker-free Certified |
| TÜV Low Blue Light | TÜV Rheinland Low Blue Light (Hardware Solution) |
Frequently Asked Questions
01 How fast is the XG27ACG in practice? +
1 ms (MPRT) is an MPRT figure - measured with backlight strobing rather than by timing the pixels themselves. It describes how long a frame persists on screen, which flatters the number compared with a grey-to-grey measurement. The true grey-to-grey transition is slower than this number implies.
02 What does 7.5 W USB-C power allow in practice? +
It can provide light power to small compatible devices while carrying video through DisplayPort Alt Mode. It is not enough to charge a normal performance laptop during use.
03 How useful is DisplayHDR 400 when peak brightness matches typical brightness? +
The sheet lists both at 400 cd/m², so there is no stated extra brightness for HDR highlights. HDR10 support confirms signal handling, not a strong HDR range.
04 Why might the DisplayPort input matter more than HDMI on this model? +
DisplayPort 1.4 HBR3 is listed alongside HDMI 2.0, but the sheet does not state the maximum refresh available through each connection. Users targeting the full 180 Hz should verify the required port and cable in the manual.
05 What makes the XG27ACG easier to position than a tilt-only monitor? +
Its stand adds 120 mm height adjustment, ±45° swivel and ±90° pivot to the -5° to +20° tilt range. It can therefore support both landscape and portrait desk layouts.
Reviews
DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT
SHEET № ROG STRIX XG27ACG