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Asus ROG Strix XG259QNS 25" specifications and in-depth review

Asus ROG Strix XG259QNS 25"

Manufacturer: Asus

The Asus ROG Strix XG259QNS is a 24.5-inch gaming monitor built around speed, offering one of the higher refresh rates available in its panel category. Designed specifically for gaming use, it features an IPS panel with a 380Hz refresh rate and a 1 ms response time, making it well-suited for fast-paced gameplay where motion clarity and timing are critical. The stand supports tilt and swivel adjustments, and the display is also VESA mount compatible for those who prefer an aftermarket arm.

The panel delivers a 1920 x 1080 resolution at 89 ppi across its 24.5-inch screen, with a typical brightness of 400 nits, a 1000:1 contrast ratio, and 110% sRGB color coverage across 16.7 million colors. VESA Adaptive Sync and AMD FreeSync Premium are supported to reduce screen tearing, and the anti-glare coating helps manage reflections in varied lighting conditions. Connectivity includes two HDMI 2.0 ports, one DisplayPort output, two USB ports, and a 3.5 mm audio jack, while Thunderbolt, USB Type-C, VGA, and DVI connections are absent. The monitor draws 14.36W during operation and drops to 0.5W in standby, and it does not include built-in speakers, a camera, or smart TV functionality.

Pros
  • The 380Hz refresh rate combined with a 1ms response time makes this monitor well-suited for fast-paced gaming where motion clarity and input timing are critical
  • AMD FreeSync Premium and VESA Adaptive Sync support help eliminate screen tearing across compatible systems
  • The IPS panel provides wide 178-degree viewing angles both horizontally and vertically, maintaining color consistency across a broad range of positions
  • 110% sRGB coverage and support for color calibration give users the ability to fine-tune color output for their specific needs
  • The stand supports both tilt and swivel adjustments, and VESA mount compatibility adds further flexibility for desk setups
  • Operating power consumption of just 14.36W is notably low for a high-refresh-rate gaming display
Cons
  • The 1920x1080 resolution across a 24.5-inch panel results in a pixel density of only 89 ppi, which may appear less sharp in non-gaming or detail-oriented tasks
  • No built-in speakers or audio processing support means external audio hardware is required for sound output
  • Portrait mode is not supported, limiting orientation flexibility
  • USB Type-C, Thunderbolt, DVI, VGA, and mini DisplayPort connections are all absent, narrowing the range of compatible source devices
  • There is no Picture-in-Picture functionality, preventing simultaneous display of multiple input sources
Who is this for?

The Asus ROG Strix XG259QNS is well-matched to competitive gamers who prioritize motion clarity and timing precision above all else, as the 380Hz refresh rate paired with a 1ms response time delivers the kind of fluid, low-latency display performance that fast-paced gaming demands. The AMD FreeSync Premium and VESA Adaptive Sync support make it a practical fit for users with compatible graphics hardware who want to minimize screen tearing during gameplay. The adjustable stand with tilt and swivel, combined with VESA mount compatibility, also suits users who need ergonomic flexibility or prefer a custom mounting solution at their workstation.

Who is this NOT for?

Users who need a monitor for detail-heavy work such as photo editing, graphic design, or high-resolution content creation will find the 89 ppi pixel density at 1920x1080 limiting on a 24.5-inch panel, as fine detail and text sharpness are noticeably reduced at this combination of screen size and resolution. Those who rely on a monitor for multimedia consumption or content production will also be constrained by the complete absence of built-in speakers and audio processing, requiring separate audio hardware. Additionally, users who work across multiple input sources simultaneously will find the lack of Picture-in-Picture support and the limited port selection — with no USB Type-C or Thunderbolt — a practical obstacle in multi-device workflows.

Display:

Display type LED-backlit, 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
has anti-glare coating ✓
refresh rate 380Hz
maximum horizontal viewing angle 178º
maximum vertical viewing angle 178º
has a matte panel ✕
has a glossy panel ✕
has a touch screen ✕

The Asus ROG Strix XG259QNS uses an LED-backlit IPS panel measuring 24.5 inches, with a resolution of 1920 x 1080 px at 89 ppi and a 380Hz refresh rate paired with a 1 ms response time for fast motion rendering. The display supports VESA Adaptive Sync and AMD FreeSync Premium to reduce tearing, and its wide viewing angles reach 178 degrees both horizontally and vertically. An anti-glare coating is present, while the panel is neither classified as matte nor glossy, 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 59 mm
weight 5580 g
supports portrait mode ✕
volume 10930.104 cm³

The Asus ROG Strix XG259QNS is a gaming monitor measuring 558 mm wide, 332 mm tall, and 59 mm thick, with a total weight of 5580 g. Its stand supports both tilt and swivel adjustments, giving users flexibility in positioning, and the display is VESA mount compatible for use with third-party mounting solutions. Portrait mode is not supported, so the monitor 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 produces 16.7 million colors with a typical brightness of 400 nits and a 1000:1 contrast ratio, providing a reasonably defined tonal range for a gaming-oriented IPS panel. Its 110% sRGB coverage means the color gamut extends slightly beyond the standard sRGB space, and the monitor supports color calibration, allowing users to adjust the output to their specific accuracy requirements.

Connectivity:

HDMI ports 2
supports Thunderbolt ✕
DisplayPort outputs 1
has a socket for a 3.5 mm audio jack ✓
has a DVI connector ✕
USB ports 2
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 Asus ROG Strix XG259QNS offers a straightforward video input selection, with two HDMI 2.0 ports and one DisplayPort output for connecting source devices, while mini DisplayPort, DVI, VGA, and USB Type-C video inputs are absent. Two USB ports and a 3.5 mm audio jack round out the physical connections, providing basic peripheral and headset hookup options. The monitor does not support Ethernet, Wi-Fi, or AirPlay, so all connectivity is limited to its wired ports.

Power:

operating power consumption 14.36W
standby power consumption 0.5W

The Asus ROG Strix XG259QNS draws 14.36W during normal operation and drops to a low 0.5W in standby mode, reflecting a modest power footprint for an actively driven 380Hz gaming display.

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 ✕

The Asus ROG Strix XG259QNS is focused purely on display output, with no built-in speakers, no audio format support such as Dolby Digital or DTS Surround, and no Picture-in-Picture functionality. It also lacks a front camera, ambient light sensor, remote control, and smart TV capabilities, making it a straightforward panel without any supplementary multimedia or smart features.

Final Verdict

The Asus ROG Strix XG259QNS makes a clear statement about its purpose: it is a monitor built entirely around speed. The 380Hz refresh rate with a 1ms response time and adaptive sync support position it squarely in the competitive gaming space, where motion fluidity and low-latency display output take precedence over resolution density or multimedia versatility. Color calibration support and 110% sRGB coverage add a degree of visual accuracy that goes beyond bare-minimum gaming specs, and the adjustable stand with VESA compatibility ensures reasonable ergonomic flexibility. Where it falls short — no built-in audio, a modest pixel density, and limited port variety — these are trade-offs that reflect deliberate design priorities rather than oversight. For users whose primary use case is fast-paced gaming and who have their audio and connectivity needs covered externally, the XG259QNS delivers a focused and technically well-equipped experience.

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