AOC U27G4R: Dual-frame monitor with 4K@160 Hz and FHD@320 Hz – no more need to choose between resolution and speed

With the AGON U27G4R, monitor manufacturer AOC has presented a new display model that attracts attention with an unusual dual-frame concept. The 27-inch device from the G4 gaming series combines native UHD resolution (3840 × 2160 pixels) with a refresh rate of up to 160 Hz and an FHD version (1920 × 1080 pixels) with a refresh rate of up to 320 Hz. Switching between the two modes is possible directly via the monitor’s OSD menu – an approach that is intended to underline the desired versatility for different gaming scenarios.

Two modes, two target groups

With the UHD mode, AOC targets gamers who value the highest possible resolution and image quality in open-world or graphics-intensive titles. The FHD mode, on the other hand, is aimed at competitive gamers, for example in shooters such as CS2 or Valorant, where every millisecond counts and the smoothest playback is paramount. In both cases, the device promises a response time of 1 ms (GtG), which is a typical but still sufficiently low value for an IPS panel. The idea behind this dual approach is that users should no longer have to choose between a high-resolution display and extremely fast playback. However, it is obvious that this does not happen without a loss of quality in practice – especially in FHD mode at 27 inches, where the pixels per inch drop significantly. For pure eSports gameplay, however, this may be of secondary importance.

Panel technology and color space coverage

AOC relies on a so-called “Fast IPS” panel for the U27G4R. This is not a technological quantum leap, but simply an optimized IPS panel with shorter switching times. The color space coverage is specified as 124.7 % sRGB and 95.9 % DCI-P3. Although the monitor does not meet the requirements for professional graphics processing, it is more than suitable for gaming requirements. VESA DisplayHDR 400 is also on board. However, as usual, HDR400 remains more of a marketing badge than a real added value, because with a typical peak brightness of around 400 cd/m², the effect of HDR is manageable in practice. Adaptive Sync is supported – without restriction to G-Sync or FreeSync – which ensures compatibility with different graphics cards.

Connections and ergonomics

When it comes to connectivity, AOC delivers solid standard fare: two HDMI 2.1 ports, one DisplayPort 1.4 port and an integrated USB 3.1 hub with several ports for peripheral devices. The case design follows the AGON-G4 style: angular, functional, largely black. The stand allows height adjustment, tilt and rotation. A pivot function also appears to be available, but was not specified in more detail.

Pricing and other models in the G4 series

With an entry-level price of around €349, AOC is positioning the U27G4R quite aggressively – especially when you consider the flexibility it offers. For comparison: Many conventional 4K models with a high refresh rate are currently still well above this price limit. However, it should be noted that the monitor cannot use both modes at the same time – it is either or.

In addition to the U27G4R, AOC has announced three more monitors in the G4 series:

• CU34G4 (34-inch, curved, UWQHD, 200 Hz): approx. ca. 335 €
• 24G4HA (24-inch, FHD, 180 Hz): approx. 155 €
• 27G4HA (27 inch, FHD, 180 Hz): approx. 179 €

AOC thus covers the entire spectrum from the entry-level eSports segment to ultra-wide screens for a more immersive experience – at least on paper.

The AOC AGON U27G4R relies on an interesting concept that may not represent a technical revolution, but offers the user noticeable flexibility in the choice of resolution and speed. It remains to be seen whether the switch between 4K@160Hz and FHD@320Hz will be put to good use in everyday use. After all, for £299 you get an IPS panel with high color gamut coverage, up-to-date interfaces and solid ergonomics. If you are prepared to make minor compromises in terms of pixel density and HDR performance, you will find a useful tool for many gaming situations.

Source: AOC