Asus ROG Swift PG27AQN with 27″ 1440p ‘Ultrafast IPS’ Panel and 360Hz Refresh Rate

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At this week’s CES event Asus have announced their new ROG Swift PG27AQN esports gaming monitor. This is a 27″ screen with a 2560 x 1440 resolution, but with a whopping 360Hz refresh rate. This is the first time we’ve seen 360Hz on any monitor with more than 1080p resolution and the PG27AQN also provides a range of new technology innovations according to the press release.

The first 1440p 360Hz monitor

We’ve seen quite a few 360Hz refresh rate monitors already, including the Asus ROG Swift PG259QN that we reviewed back in September 2020 – the first to market in fact. This is the first time though that we’ve seen 360Hz available from a higher resolution screen, offering 2560 x 1440 like many 27″ sized screens. This is of course going to require an even more hefty system and graphics card to power it! The launch video states that this is via an overclocking feature, which would make sense as we are not aware of any native 360Hz AUO panels of this size. Either way, the refresh rate is higher than other 27″ 1440p models currently available.

Co-developed with NVIDIA

The screen features a Native NVIDIA G-sync module and has been co-developed with NVIDIA to optimise performance. This helps ensure super-smooth VRR experience, as well as bring other in-built benefits like variable overdrive and super-low input lag. The NVIDIA G-SYNC processor delivers an amazing experience with no tearing, stuttering, or input lag. This variable refresh rate technology synchronizes the refresh rate of the display with the GPU so that you get a smooth and tear-free gaming experience, all without the latency introduced by traditional Vsync. As well as the G-sync module, the screen includes NVIDIA Reflex Analyzer so you can measure and track system and display latency easily.

‘Ultrafast IPS technology’ for improved response times

Asus are keen to promote in their launch video and press release the new so-called ‘Ultrafast IPS’ technology they’ve used for this screen. Their press release says there are “three key innovations in its liquid-crystal display technology give it the fastest response time of any monitor we’ve ever made. We call this trio of innovations ultra-fast IPS technology. It’s built to crush motion blur and give gamers unprecedented clarity even in the fast-moving battlefields of today’s esports competitions.”

Asus say that in conjunction with AU Optronics (the panel manufacturer for this screen) they have introduced a new kind of liquid crystal that offers higher birefringence and lower viscosity so they can twist quickly and make space for light to pass through, improving the response times. They have also changed the orientation of the liquid crystals for efficiency. Previously, they were lined up parallel to the polarizer surface, so the response time for the entire screen to turn from black to white was slower. With this new arrangement, the liquid crystals take less time to turn compared to the ones found in normal panels.  Oddly Asus don’t talk about the response time spec at all in the press release or video, only that it’s “the fastest they’ve ever built”.

Lastly Asus and AUO have integrated a dual-layer voltage driver into the display. Conventional displays only use a single-layer voltage driver to twist the liquid crystals from the upper left to the bottom-right corner. With the new dual-layer voltage driver design, the liquid crystals twist from the upper-left and bottom-right corners simultaneously for a smoother, more consistent image. 

It remains to be seen how this will perform in practice, but it does appear to be more than just a marketing gimmick, backed by actual technical improvements. Asus also provide this video explaining Ultrafast IPS in more detail that is worth a watch:

YouTube player

Other Specs and Features

The PG27AQN has 1x DisplayPort 1.4 and 3x HDMI 2.0 ports. A cable management channel built into the stand lets you tuck cords out of sight. And an integrated USB hub makes it easy to connect your favourite peripherals to your PC while keeping your desk surface tidy. 

More information on specs, pricing and availability when we get it.

Source: Asus (and launch video)

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