ASUS ROG Strix XG27ACDNG 27-inch QD-OLED 360Hz Monitor: specs and who it suits

The ASUS ROG Strix XG27ACDNG is a 27-inch-class gaming monitor built on a QD-OLED panel. It combines a 1440p resolution with a 360Hz refresh rate and a very fast response time, and it is aimed at competitive players and anyone who wants deep contrast from a desktop screen. Here is what the main specifications mean.

What QD-OLED is

In an OLED display, each pixel makes its own light, so a pixel that should be black can switch off completely. That is why OLED screens typically show deeper blacks and stronger contrast than backlit LCD panels. QD-OLED adds a quantum-dot layer to produce colour, which ASUS pairs with 99% DCI-P3 coverage and true 10-bit colour. DCI-P3 is a wide colour gamut used in cinema and HDR content.

The panel measures 26.5 inches across the diagonal, sold as a 27-inch model, at QHD resolution (2560 x 1440). At this size, QHD is typically sharper than Full HD while staying easier for a graphics card to drive than 4K.

360Hz and 0.03ms

A 360Hz refresh rate means the image is redrawn 360 times every second. To use it, your computer has to produce very high frame rates, which in practice means fast competitive games and a capable graphics card. ASUS rates the response time at 0.03 ms grey-to-grey, a figure that OLED panels can reach because pixels switch directly. The monitor is G-SYNC Compatible, so it can follow a supported NVIDIA graphics card's frame rate to reduce tearing, and ROG's OLED Anti-flicker technology aims to reduce flicker when the refresh rate changes.

HDR and colour accuracy

The monitor meets VESA DisplayHDR 400 True Black, a certification level designed for OLED screens, where deep blacks are the focus. ASUS also quotes a Delta E below 2, a measure of colour difference where lower numbers mean the colour shown is closer to the target. These are the brand's figures.

Cooling and burn-in care

OLED panels can in principle keep an image burned in if the same content is displayed for long periods. ASUS says a custom heatsink and an advanced airflow design keep temperatures down, and that OLED Care+ functions reduce the risk of burn-in. DisplayWidget Center software lets you reach those functions and other settings with a mouse instead of the on-screen buttons. Check the manual and warranty for how burn-in is treated; ASUS lists a three-year warranty.

Size and weight

The monitor is about 24.0 inches wide and 20.3 inches high on its stand and weighs 16.4 lb (about 7.4 kg).

Who it suits

It suits fast-paced competitive gaming and people who want strong contrast and colour for games and films. It is less ideal for long hours of static content, such as the same spreadsheet or taskbar all day, because of the burn-in risk common to OLED, even with care features.

What to check before you buy

• Your graphics card: a 360Hz rate needs a card and ports that can deliver the frames.
• Ports and cables: check the inputs in ASUS's specifications and use cables rated for high refresh rates.
• Usage: think about how much static content you will show, and read the OLED care advice.
• Room lighting: OLED screens can show reflections, so consider where the monitor will sit.
• Warranty: read the warranty's terms.

The short version

• A 26.5-inch QHD (2560 x 1440) QD-OLED gaming monitor.
• 360Hz refresh rate, 0.03 ms response time and G-SYNC Compatible.
• 99% DCI-P3, true 10-bit, DisplayHDR 400 True Black, Delta E below 2, per ASUS.
• Custom heatsink, OLED Care+ and DisplayWidget Center software; three-year warranty.

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