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Asus ROG Strix XG259CMS 25" specifications and in-depth review

Asus ROG Strix XG259CMS 25"

Manufacturer: Asus

The Asus ROG Strix XG259CMS is a 25-inch class gaming monitor built around a 24.5-inch IPS panel, designed to meet the demands of fast-paced gameplay. With a 310Hz refresh rate, it targets competitive players who prioritize fluid motion over resolution, while the anti-glare coating helps reduce unwanted reflections in varied lighting conditions. The stand supports both tilt and swivel adjustments, and the display is also VESA mount compatible for those who prefer an aftermarket arm setup.

The panel delivers a 1920x1080 resolution at 89 ppi with a 1ms response time, and covers 110% of the sRGB color space at a typical brightness of 400 nits and a 1000:1 contrast ratio. Adaptive sync is handled through VESA Adaptive Sync, AMD FreeSync Premium, and Nvidia G-Sync Compatible certification. Connectivity includes one HDMI 2.0 port, one DisplayPort output, one USB Type-C port, a single additional USB port, and a 3.5mm audio jack. Operating power consumption sits at 18.7W, with a standby draw of just 0.5W.

Pros
  • The 310Hz refresh rate enables exceptionally smooth motion rendering for fast-paced gaming scenarios
  • Adaptive sync support covers both AMD FreeSync Premium and Nvidia G-Sync Compatible, making it broadly compatible with different GPU brands
  • Wide 178-degree viewing angles both horizontally and vertically ensure consistent image quality across a range of seating positions
  • The stand supports both tilt and swivel adjustments, offering reasonable ergonomic flexibility
  • USB Type-C connectivity adds versatility alongside the standard HDMI and DisplayPort inputs
  • sRGB coverage of 110% indicates the panel reproduces the full standard color gamut with additional headroom
Cons
  • Portrait mode is not supported, limiting orientation flexibility
  • No stereo speakers are built in, requiring a separate audio solution
  • Color calibration is not supported, leaving no option to fine-tune color accuracy from within the monitor
  • The panel is neither classified as matte nor glossy, which may cause uncertainty about its surface behavior in different lighting conditions
  • A single USB port offers limited peripheral connectivity for users who rely on monitor-side hubs
Who is this for?

This monitor is a strong fit for competitive and fast-paced gaming, where the 310Hz refresh rate and 1ms response time translate directly into smoother motion and reduced blur during high-action sequences. Users with both AMD and Nvidia graphics cards will benefit from the broad adaptive sync support, covering FreeSync Premium and G-Sync Compatible certifications. The swivel and tilt stand adjustments, combined with VESA mount compatibility, also make it a practical choice for users who want ergonomic flexibility or plan to use a third-party monitor arm in a dedicated gaming setup.

Who is this NOT for?

Users who prioritize color-accurate or professional creative work will find this monitor limiting, as it lacks color calibration support and the 1920x1080 resolution at 89 ppi may feel insufficiently detailed for tasks like photo editing, graphic design, or video production. The absence of built-in speakers and a front camera makes it a poor standalone option for users who rely on the monitor as a communication hub. Additionally, those who need portrait mode orientation — such as developers or writers who prefer vertical screen layouts — will need to look elsewhere, as that capability is not supported.

Display:

Display type IPS
response time 1 ms
screen size 24.5"
resolution 1920 x 1080 px
pixel density 89 ppi
Adaptive synchronization VESA Adaptive Sync, AMD FreeSync Premium, Nvidia G-Sync Compatible
has anti-glare coating ✓
refresh rate 310Hz
maximum horizontal viewing angle 178º
maximum vertical viewing angle 178º
has a matte panel ✕
has a glossy panel ✕
has a touch screen ✕

The display uses an IPS panel measuring 24.5 inches with a 1920x1080 resolution and a pixel density of 89 ppi. Its standout feature is a 310Hz refresh rate paired with a 1ms response time, making it well-suited for fast-motion content. The screen supports VESA Adaptive Sync, AMD FreeSync Premium, and Nvidia G-Sync Compatible technologies for smoother frame delivery, and viewing angles reach 178 degrees both horizontally and vertically. An anti-glare coating is present, while the panel is neither matte nor glossy in classification, and touch input is not supported.

General info:

Type Gaming
supports total tilt ✓
Has a swivel stand ✓
Supports VESA mount ✓
height 332 mm
width 558 mm
thickness 57 mm
weight 5580 g
supports portrait mode ✕
volume 10559.592 cm³

This is a gaming-type monitor with physical dimensions of 558mm wide, 332mm tall, and 57mm thick, with a total volume of 10559.592 cm³ and a weight of 5580g. The stand supports both tilt and swivel adjustments, and the display is compatible with VESA mounting for use with third-party arms or wall brackets. Portrait mode is not supported, so the screen is intended for landscape orientation only.

Colors:

brightness (typical) 400 nits
supports color calibration ✕
display colors 16.7 million
contrast ratio 1000:1
sRGB coverage 110%

The display renders 16.7 million colors with a typical brightness of 400 nits and a contrast ratio of 1000:1. Its sRGB coverage reaches 110%, meaning it reproduces the full sRGB color space with some headroom beyond the standard gamut. Color calibration is not supported out of the box, so no factory calibration profile is included.

Connectivity:

HDMI ports 1
supports Thunderbolt ✕
DisplayPort outputs 1
has a socket for a 3.5 mm audio jack ✓
has a DVI connector ✕
USB ports 1
Has USB Type-C ✓
HDMI version HDMI 2.0
supports Ethernet ✕
supports Wi-Fi ✕
has AirPlay ✕
mini DisplayPort outputs 0
has a VGA connector ✕

The monitor offers a straightforward set of video inputs, including one HDMI 2.0 port and one DisplayPort output, with no mini DisplayPort, DVI, or VGA connectors present. A USB Type-C port is included alongside one additional USB port, and a 3.5mm headset jack is available for audio passthrough. Wireless connectivity is not part of the package — there is no Wi-Fi, Ethernet, AirPlay, or Thunderbolt support.

Power:

operating power consumption 18.7W
standby power consumption 0.5W

The monitor draws 18.7W during normal operation and drops to just 0.5W in standby mode, indicating a modest power footprint across both active and idle states.

Features:

has PiP ✕
has stereo speakers ✕
has built-in smart TV ✕
has a remote control ✕
supports Dolby Digital ✕
supports Dolby Digital Plus ✕
has DTS Surround ✕
has an ambient light sensor ✕
has a front camera ✕

This monitor is focused purely on display output, with no supplementary features bundled in. It has no built-in speakers and does not support Dolby Digital, Dolby Digital Plus, or DTS Surround audio formats. There is no PiP functionality, no remote control, no ambient light sensor, no front camera, and no smart TV platform integrated into the display.

Final Verdict

The Asus ROG Strix XG259CMS is a monitor built with a clear and singular focus: delivering the smoothest possible experience for competitive gaming. Its 310Hz refresh rate combined with 1ms response time represents a meaningful technical commitment to fast-motion clarity, and the wide adaptive sync compatibility ensures that commitment holds across different GPU setups. The 110% sRGB coverage and wide viewing angles add a degree of visual quality that goes beyond pure speed. That said, the 1080p resolution, absence of built-in audio, and lack of color calibration signal that this display is not designed to serve creative professionals or users seeking an all-in-one workspace solution. For those whose primary demand is responsive, fluid gameplay, the XG259CMS delivers a well-defined and purposeful feature set.

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