ASUS ROG Strix XG249CM 23.8-inch 270Hz Monitor: features and specs

The ASUS ROG Strix XG249CM is a 23.8-inch Full HD (1920 x 1080) gaming monitor with a Fast IPS panel and a 270Hz refresh rate. It targets fast-paced games where smooth motion matters, in a screen size that suits a compact desk. ASUS also lists a height-adjustable stand and USB-C connectivity.

Fast IPS and 1ms

IPS panels generally offer good colour and wide viewing angles, and ASUS's Fast IPS technology is aimed at bringing response times close to those of faster panel types. ASUS lists a 1ms grey-to-grey response time. It is a brand figure measured under favourable conditions, but it indicates that the panel is tuned for quick pixel changes.

270Hz refresh rate

ASUS describes 270Hz as overclocking, so you may need to enable it in the monitor's menu and in your graphics settings. Refresh rate is how many times per second the picture updates. Higher rates generally make fast motion look smoother, but you only see the benefit if your computer can produce a similar number of frames per second.

ELMB Sync and adaptive refresh

ELMB Sync is ASUS technology that enables Extreme Low Motion Blur together with G-SYNC Compatible. ASUS says this eliminates ghosting and tearing. The monitor supports Adaptive-Sync with NVIDIA GeForce GTX 10 series, GTX 16 series, RTX 20 series and newer cards, and FreeSync Premium with AMD graphics cards. These technologies match the screen's refresh to your frame rate to reduce tearing.

Colour and HDR

ASUS lists 105% sRGB coverage, which means the panel can reproduce slightly more than the standard sRGB range, and says its HDR technology improves contrast and colour. The listing doesn't give a DisplayHDR level, so treat HDR here as a modest extra, and check the specification sheet if HDR matters to you. A colour calibration report is included in the box.

Connections and what's in the box

The listing mentions DisplayPort, HDMI and USB-C, and the box contains a power cord and adapter, an HDMI cable, a DisplayPort cable, a USB cable, a USB-C cable, a colour calibration report, a ROG sticker, a warranty card and a quick start guide. That cable list is helpful, as you can connect a computer straight away. Check that your device's USB-C port supports video output before relying on that cable.

Size and weight

The listed dimensions are 9.3 x 21.3 x 15.2 inches (24 x 54 x 39 cm), and it weighs 19.4 lb (about 8.8 kg). The height-adjustable stand lets you set the screen at a comfortable level.

Who it suits

It suits competitive players of fast-paced games, anyone moving up from a 60Hz or 144Hz screen, and people short on desk space. At 23.8 inches, 1080p gives a fairly sharp image, though it offers less workspace than a larger, higher-resolution screen.

What to check before you buy

• Graphics card: confirm it can deliver frame rates that make use of 270Hz at 1080p.
• Ports: check which video output your computer has and use the matching cable.
• USB-C: confirm your laptop supports video over USB-C.
• Desk: measure for width and stand depth.
• Mounting: if you plan to use an arm, check the VESA pattern in the manual.
• Software offers: the Adobe Creative Cloud offer in the listing ran only until 2024.

The short version

• A 23.8-inch Full HD Fast IPS gaming monitor.
• 270Hz (overclocking) and 1ms GTG response time.
• ELMB Sync with G-SYNC Compatible, plus FreeSync Premium support.
• 105% sRGB, HDR, DisplayPort, HDMI and USB-C.
• Height-adjustable stand and several cables in the box.

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