ASUS ROG Swift PG279QM 27-inch 240Hz G-SYNC monitor: specs and who it suits

The ASUS ROG Swift PG279QM is a 27-inch gaming monitor with a 2560 x 1440 (QHD) Fast IPS panel running at up to 240Hz. It includes NVIDIA's G-SYNC processor and a built-in latency measurement tool. It is aimed at players of fast-paced games who want a sharp image with very smooth motion.

Resolution and size

At 27 inches, QHD (1440p) is a popular balance between sharpness and demand on the graphics card. It has about 77% more pixels than Full HD, so text and detail look crisper, but it asks less of a graphics card than 4K does. That makes it easier to reach high frame rates, which matters when you are using a 240Hz screen.

240Hz and 1ms response

The refresh rate is how many times per second the screen updates. At 240Hz, motion looks smoother and more responsive than at the common 60Hz. To benefit, your computer has to produce frames that fast, which depends on the game and your graphics card.

ASUS lists a 1ms gray-to-gray (GTG) response time using its Fast IPS technology. Response time is how quickly a pixel changes colour. Lower values reduce blur and ghosting behind moving objects. Manufacturer GTG figures are usually measured in best-case conditions.

G-SYNC and Reflex Latency Analyzer

The NVIDIA G-SYNC processor matches the monitor's refresh rate to the graphics card's frame output, which avoids tearing without the stutter that older sync methods could cause. The listing says it works at refresh rates up to 240Hz and is intended for use with compatible NVIDIA graphics cards.

The NVIDIA Reflex Latency Analyzer is a feature that measures system latency, the delay from a mouse click to the result on screen. It works together with a compatible mouse and graphics card. The listing calls it an accurate measurement for competitive players.

Colour and HDR

The monitor has a DisplayHDR 400 certification and covers the DCI-P3 colour gamut. DisplayHDR 400 is the entry level of VESA's HDR scale. It means HDR content is accepted, but the brightness and contrast improvement is more modest than with higher tiers. The monitor also comes with a colour calibration report.

Connections

The listing gives these connections:

• DisplayPort 1.4
• Three HDMI 2.0 ports
• Two USB 3.0 ports

DisplayPort is typically the way to reach the highest refresh rate with G-SYNC. HDMI 2.0 may not carry 1440p at 240Hz, so check the manual before connecting consoles or other devices.

What is in the box

According to ASUS, the box includes a power adapter, a power cord, a DisplayPort cable, an HDMI cable, a USB 3.0 cable, a warranty card, a quick start guide, the colour calibration report, a ROG welcome card and a ROG sticker.

Size and weight

The monitor measures about 24.2 x 10.0 x 16.1 inches including the stand and weighs 17.9 lb (about 8.1 kg). Measure your desk depth, as the stand base takes space.

Who it suits

It suits PC gamers with a capable graphics card, particularly NVIDIA models, who play fast action or competitive games and want a high refresh rate at 1440p. It is less needed for slower games, office work or console play.

What to check before you buy

• Graphics card: check that your PC can reach high frame rates at 1440p.
• G-SYNC support: confirm your graphics card supports it.
• Ports: use DisplayPort for the top refresh rate.
• Desk space: check the stand's footprint and height.
• HDR expectations: DisplayHDR 400 is a basic level.

The short version

• A 27-inch 2560 x 1440 Fast IPS monitor with up to 240Hz refresh and 1ms GTG response.
• NVIDIA G-SYNC processor and Reflex Latency Analyzer.
• DisplayHDR 400 certification and DCI-P3 colour gamut.
• DisplayPort 1.4, three HDMI 2.0 and two USB 3.0 ports.
• Weighs 17.9 lb with its stand.

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