Display
27 in, IPS, 2560 x 1440 pixels / Quad HD (QHD) / 1440p
27
Refresh Rate
48 Hz - 320 Hz / Overclock - 320 Hz / DisplayPort - 490 kHz - 490 kHz; 48 Hz - 320 Hz / HDMI - 30 kHz - 490 kHz; 48 Hz - 320 Hz
48 Hz
Brightness
350 cd/m²
350 cd
Contrast Ratio
1000 : 1
1000
Overview
The ASUS ROG Strix XG27ACMS is an 2560 x 1440 pixels / Quad HD (QHD) / 1440p IPS monitor rated for a 48 Hz - 320 Hz / Overclock - 320 Hz / DisplayPort - 490 kHz - 490 kHz; 48 Hz - 320 Hz / HDMI - 30 kHz - 490 kHz; 48 Hz - 320 Hz refresh range. On the picture-quality side, it’s specified at 350 cd/m² typical brightness, 1000 : 1 contrast and 130 % sRGB coverage. Response time is quoted at 1 ms GtG and 0.3 ms (MPRT) MPRT — the two are measured differently and shouldn’t be compared directly. For hookups, there’s 1x HDMI 2.1, 1x DisplayPort 1.4. Tearing is addressed through FreeSync, G-Sync, VESA AdaptiveSync Display 320Hz.
BrandASUSPanel TypeIPSResolution2560 x 1440 pixels / Quad HD (QHD) / 1440pRefresh Rate48 Hz - 320 Hz / Overclock - 320 Hz / DisplayPort - 490 kHz - 490 kHz; 48 Hz - 320 Hz / HDMI - 30 kHz - 490 kHz; 48 Hz - 320 Hz
Key Highlights
- IPS panel at 2560 x 1440 pixels / Quad HD (QHD) / 1440p
- 48 Hz - 320 Hz / Overclock - 320 Hz / DisplayPort - 490 kHz - 490 kHz; 48 Hz - 320 Hz / HDMI - 30 kHz - 490 kHz; 48 Hz - 320 Hz refresh range — built for competitive, fast-paced gaming
- 1 ms GtG / 0.3 ms (MPRT) MPRT response time
- 1000 : 1 contrast ratio
- 350 cd/m² typical brightness
- 130 % sRGB colour coverage
- FreeSync, G-Sync, VESA AdaptiveSync Display 320Hz
- Connectivity: 1x HDMI 2.1, 1x DisplayPort 1.4
Who Should Buy the Asus ROG Strix XG27ACMS
+ Best For
Competitive QHD gamers
320 Hz targets exceptionally high frame-rate play
Radeon and GeForce users
both major adaptive-sync options are listed
Ergonomic gaming desks
120 mm height, ±45° swivel and ±90° pivot are included
Players wanting wider colour
130% sRGB and 94% DCI-P3 are listed
× Not Ideal For
Laptop charging setups
USB-C power is limited to 15 W
Speaker-free desks
the monitor has no built-in speakers
Serious HDR buyers
the IPS panel has 1,000:1 contrast and no local dimming is listed
Modest gaming PCs
approaching 320 fps at QHD requires very high performance
Display Performance
Refresh Rate
48 Hz - 320 Hz / Overclock - 320 Hz / DisplayPort - 490 kHz - 490 kHz; 48 Hz - 320 Hz / HDMI - 30 kHz - 490 kHz; 48 Hz - 320 Hz
High-refresh gaming range
Response Time
1 ms GtG
Manufacturer-published transition time
Brightness
350 cd/m²
Typical brightness as specified; peak figure not published
Contrast
1000 : 1
Standard panel black depth
Colour Gamut
130 % sRGB
Standard game and web colour
Gaming Performance
Refresh Rate48 Hz - 320 Hz / Overclock - 320 Hz / DisplayPort - 490 kHz - 490 kHz; 48 Hz - 320 Hz / HDMI - 30 kHz - 490 kHz; 48 Hz - 320 HzHigh ceiling supports competitive frame rates
Response Time1 ms (GtG) / 0.3 ms (MPRT) (MPRT)MPRT uses strobing and is not directly comparable to GtG
VRR / Adaptive SyncFreeSync, G-Sync, VESA AdaptiveSync Display 320HzHelps reduce tearing on compatible GPUs
GPU Requirement2560 x 1440 pixels / Quad HD (QHD) / 1440p up to 490 HzHigh refresh ceiling needs a high-end GPU to fully utilise
HDR & Brightness Reality
This is still entry-level HDR, but the figures are more credible than a monitor listing 400 cd/m² for both typical and peak output. The XG27ACMS is rated at 350 cd/m² typical and 500 cd/m² peak, leaving 150 cd/m² for highlights. DisplayHDR 400 and HDR10 are supported. However, the 1,000:1 IPS contrast ratio and absence of listed local dimming mean dark-scene HDR will remain limited compared with Mini LED or OLED hardware.
Connectivity & Ports
HDMI1x HDMI 2.1Published port count and version
DisplayPort1x DisplayPort 1.4Primary high-refresh PC connection
USB-CNot publishedNo one-cable laptop or charging function
USB HubNot publishedNo listed peripheral expansion
Audio Out3.5 mm audio out / headphone outExternal audio may still be preferred
Desk Fit & Ergonomics
Size / Footprint614.8 mm x 392.9 mm x 218.8 mm (W x H x D)Check desk width and depth before purchase
StandRemovable: YesA separate arm can replace the supplied base
VESA Mount100 x 100 mmUse a matching arm or wall mount
Tilt-5 ° to +20 ° / Cable management / 1/4" Tripod SocketCovers the published forward and backward range
Height Adjust120 mm (4.72 in)Supports eye-level positioning
Swivel / Pivot±45 ° / ±90 °Supports shared angles and portrait rotation
Real-World Use Cases
320 Hz and dual-brand adaptive sync target serious high-frame-rate gaming
QHD resolution provides more workspace than Full HD
±90° pivot supports vertical documents and chat windows
94% DCI-P3 and 10-bit through FRC broaden the listed colour range
Pros & Cons
Pros
- 48 Hz 320 Hz / Overclock - 320 Hz / DisplayPort - 490 kHz - 490 kHz; 48 Hz - 320 Hz / HDMI - 30 kHz - 490 kHz; 48 Hz - 320 Hz refresh range with 1 ms GtG response is built for competitive, fast-paced gaming
- FreeSync, G-Sync, VESA AdaptiveSync Display 320Hz give broad adaptive-sync compatibility
- 130 % sRGB coverage solid coverage for everyday colour accuracy
- Stand offers 120 mm (4.72 in) height adjustment, swivel, pivot
- Backed by 3 years
- 109 ppi / 42 ppcm keeps text and UI edges crisp at normal desk distance
- IPS panel gives consistent colour and wide viewing angles
- 100 x 100 mm VESA mount compatibility works with third-party arms and stands
- Low blue light and/or flicker-free modes support longer viewing comfort
Cons
- No USB-C or USB hub for peripheral connectivity
- No listed built-in speakers
- No KVM switch for controlling two PCs from one keyboard/mouse
- IPS panels typically show lower native contrast than VA or OLED alternatives
- No energy-efficiency certification (e.g. ENERGY STAR, TCO) is listed
- Limited or no USB-A downstream ports for connecting multiple accessories
Score & Ratings
8/10
Great
Model Information
12
| Specification | Value |
|---|---|
| Brand | ASUS |
| Series | ROG Strix |
| Model | ROG Strix XG27ACMS |
| Full Product Name | ASUS ROG Strix XG27ACMS |
| Model Year | 2025 |
| Monitor Type | Gaming Monitor |
| Market Position | Upper-Mid to High-End Gaming |
| Primary Use | Competitive & Immersive Gaming |
| Launch Status | 2025 |
| Available Colors | Black |
| Warranty | 3 years (36 months) standard limited warranty from date of purchase |
| Burn-In Warranty | Not applicable (non-OLED panel) |
Display & Panel
10
| Specification | Value | What It Means |
|---|---|---|
| Screen Size | 27 in | |
| Exact Diagonal | 684.66 mm (26.96 in) | |
| Aspect Ratio | 16:9 | |
| Active Display Width | 596.96 mm (23.50 in) | |
| Active Display Height | 335.32 mm (13.20 in) | |
| Display Area | 88.69 % | |
| Panel Type | IPS | IPS affects viewing angles, black depth and color consistency — each panel technology trades these off differently. |
| Backlight Type | W-LED | |
| 3D Support | No | |
| Screen Coating | Anti-glare/Matte (3H) |
Resolution & Pixel Details
3
| Specification | Value | What It Means |
|---|---|---|
| Native Resolution | 2560 x 1440 pixels / Quad HD (QHD) / 1440p | |
| Pixel Density | 109 ppi / 42 ppcm | 109 ppi / 42 ppcm indicates how much scaling may be needed in the operating system for comfortable reading. |
| Pixel Pitch | 0.233 mm (0.01 in) |
Picture Quality & Color
13
| Specification | Value | What It Means |
|---|---|---|
| Panel Bit Depth | 10 bits (8 bits + FRC) | |
| FRC | Yes | |
| Display Colors | 1073741824 colors / 30 bits | |
| Typical Brightness | 350 cd/m² | |
| Peak Brightness | 500 cd/m² | |
| Static Contrast Ratio | 1000 : 1 | |
| Horizontal Viewing Angle | 178 ° | |
| Vertical Viewing Angle | 178 ° | |
| HDR Support | DisplayHDR 400HDR10 |
|
| HDR10 | Yes | |
| sRGB Coverage | 130 % | 130 % indicates how much of that color space the panel can reproduce, which affects color accuracy for photo/video work. |
| DCI-P3 Coverage | 94 % | |
| Color Adjustment | Yes |
Refresh Rate, Response & Gaming
12
| Specification | Value |
|---|---|
| Native Refresh Rate | 320 Hz |
| Refresh Rate Range | 48 Hz - 320 Hz / Overclock - 320 Hz / DisplayPort - 490 kHz - 490 kHz; 48 Hz - 320 Hz / HDMI - 30 kHz - 490 kHz; 48 Hz - 320 Hz |
| Minimum Response Time | 1 ms |
| MPRT Response Time | 0.3 ms (MPRT) |
| AMD FreeSync | Yes |
| NVIDIA G-Sync | Yes |
| Motion Blur Reduction | Yes |
| Shadow Boost | Yes |
| Crosshair | Yes |
| Dynamic Crosshair | Yes |
| AI Gaming Features | Yes |
| GameVisual | Yes |
Ports & Connectivity
11
| Specification | Value |
|---|---|
| HDMI Ports | 1 |
| HDMI Version | 2.1 |
| HDMI Bandwidth | 30 kHz - 490 kHz |
| DisplayPort Input | 1 |
| DisplayPort Version | 1.4 |
| USB-C Video Input | Yes |
| DisplayPort Alt Mode | Yes |
| HDCP Support | Yes |
| USB-C Power Delivery | 15 W |
| Audio Output | 3.5 mm |
| Headphone Output | 3.5 mm Audio Out |
Audio, Camera, Network & Smart Features
1
| Specification | Value |
|---|---|
| Built-In Camera | No |
Ergonomics & Stand
16
| Specification | Value | What It Means |
|---|---|---|
| VESA Mount | Yes | |
| VESA Size | 100 x 100 mm | |
| Removable Stand | Yes | |
| Height Adjustment | Yes | 120 mm (4.72 in) of travel allows the screen to be raised or lowered for a comfortable eye-level position. |
| Height Adjustment Range | 120 mm (4.72 in) | |
| Tilt Adjustment | Yes | |
| Forward Tilt | 5 ° | |
| Backward Tilt | 20 ° / Cable management / 1/4" Tripod Socket | |
| Swivel Adjustment | Yes | |
| Left Swivel | 45 ° | |
| Right Swivel | 45 ° | |
| Left Pivot | 90 ° | |
| Right Pivot | 90 ° | |
| Portrait Mode | Yes | |
| Security Lock | Yes | |
| Anti-Theft Lock | Kensington Lock |
Dimensions, Weight & Design
5
| Specification | Value |
|---|---|
| Dimensions With Stand | 614.8 mm x 392.9 mm x 218.8 mm (W x H x D) |
| Dimensions Without Stand | 614.8 mm x 367.1 mm x 60.1 mm (W x H x D) |
| Weight With Stand | 6.52 kg (14.37 lbs) |
| Weight Without Stand | 3.81 kg (8.4 lbs) |
| Stand Depth | 218.8 mm (8.61 in) |
Power & Operating Conditions
13
| Specification | Value |
|---|---|
| Power Input | 100–240V |
| 110V Input Range | 110 V - 120 V |
| 220V Input Range | 220 V - 240 V |
| AC Frequency | 50 Hz - 60 Hz |
| Average Power Consumption | 27 W |
| Sleep Consumption | 0.5 W |
| Off Consumption | 0.5 W |
| Operating Temperature | 0 °C - 40 °C / 32 °F - 104 °F |
| Operating Humidity | 10 % - 85 % |
| Operating Altitude | 5000 m / 16404.2 ft |
| Storage Temperature | -25 °C - 55 °C / -13 °F - 131 °F |
| Storage Humidity | 5 % - 93 % |
| Storage Altitude | 12192 m / 40000 ft |
Eye Care, Protection & Additional Features
7
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Low Blue Light | Yes |
| Desktop Control Software | Yes |
| Monitor Management Software | Yes |
| Multiple HDR Modes | Yes |
| Anti-Theft Slot | Yes (Kensington lock slot) |
| Additional Monitor Features | 3-sided frameless design; Aspect Control; Asus Power Sync; Color Temperature Selection; DisplayWidget Center; Fast IPS; GamePlus AI; GameVisual; Multi HDR Mode; ROG Gaming AI; Trace Free technology; Variable Overdrive 2.0 |
Certifications, Standards & Licenses
4
| Specification | Value |
|---|---|
| TÜV Flicker-Free | Yes |
| TÜV Low Blue Light | Yes |
| VESA DisplayHDR | DisplayHDR 400 |
| VESA AdaptiveSync | Display 320Hz |
Included Accessories
1
| Specification | Value |
|---|---|
| DisplayPort Cable | DisplayPort cable |
Packaging Information
5
| Specification | Value |
|---|---|
| Package Dimensions | 789 mm x 515 mm x 226 mm (W x H x D) |
| Package Width | 789 mm (31.06 in) |
| Package Height | 515 mm (20.28 in) |
| Package Depth | 226 mm (8.90 in) |
| Package Weight | 8.9 kg (19.62 lbs) |
Frequently Asked Questions
01 Why are 1 ms GtG and 0.3 ms MPRT shown together? +
They are separate response-time methods, but the sheet runs them together without spacing. Neither figure should be treated as an independent test result.
02 How difficult is it to use the full 320 Hz at QHD? +
It requires a very fast graphics card and games that can produce close to 320 frames per second at 2560 x 1440. Competitive settings or reduced detail may be needed.
03 Does 500 cd/m² peak brightness make DisplayHDR 400 worthwhile? +
It gives 150 cd/m² of headroom above the 350 cd/m² typical figure, which is better than a 400/400 listing. The 1,000:1 contrast ratio and lack of stated local dimming still limit overall HDR range.
04 What can the 15 W USB-C port do on this ROG monitor? +
It carries video through DisplayPort Alt Mode and can provide light charging. It is not enough to replace the charger for most gaming laptops.
05 What is missing despite the premium gaming speed? +
There are no built-in speakers, no listed downstream USB hub and no high-power USB-C charging. The display specification is stronger than the docking features.
Reviews
DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT
SHEET № ROG STRIX XG27ACMS