AOC CU34P2C review: A versatile and affordable 34-inch 100Hz widescreen monitor

AOC CU34P2C review: A versatile and affordable 34-inch 100Hz widescreen monitor

Ergonomics

The AOC CU34P2C, a very classic lampshade in a very dark dress.

The AOC CU34P2C, a very classic lampshade in a very dark dress.

The AOC CU34P2C monitor is completely black. The finishes are very good and the matte black plastic seems built to last. His foot is quite imposing (27.5 x 27.5 cm).

Height and tilt adjustment.

Height and tilt adjustment.

Rotation up to 180° left and right.

Rotation up to 180° left and right.

The AOC CU34P2C offers a height adjustment of more than 15 cm and a tilt between -5 and +23°. The foot can also rotate more than ±180° through a pad located under the entire plinth. However, there is no portrait orientation, a rare and almost useless feature on a widescreen monitor.

The back of the monitor.

Like the front, the rear is as unobtrusive as possible. The connectors face downwards, except for the two USB ports on the edge. At the base of the foot, there is a basic cable management system that allows them to be grouped in the same place.

The two USB 3.0 ports on the edge.

The two USB 3.0 ports on the edge.

The connection.

The connection consists of an HDMI 2.0 input, a DisplayPort 1.2, a 65W USB-C port, two USB 3.0 ports, and a headphone jack. There are also two USB 3.0 ports on the edge, handy for connecting a storage device like a USB key or hard drive. It also has two 3W speakers whose quality is not exceptional, but it is enough to watch short videos.

Remember that the USB-C port allows you to charge the laptop, use the two USB 2.0 ports located on the back to connect a keyboard and mouse, for example, as well as the two USB 3.0 ports located on the edge and send the signal video to screen. In short, a single cable is enough and allows you to transform the monitor into a kind of docking station. In this way, the screen can show a copy of that of the computer or enlarge its display. The 65 W of the USB-C port charges almost all laptops on the market. Only the most powerful computers, such as the 14-inch, 15-inch and 16-inch MacBook Pro, whose original power supply delivers more than 85 watts, can be hampered. In fact, it works flawlessly and the built-in battery takes care of it during heavy loads.

The buttons to access the settings.

The buttons to access the settings.

To tweak settings, AOC opts for five buttons, a far less practical system than the clickable joystick found on many competitors… and even on certain AOC monitors (such as the AOC Agon Pro AG274QXM, to name just one). The old-fashioned menus don’t help, and the interface is worthy of the ’90s. In short, it’s not necessarily nice to change settings on this monitor.

The AOC CU43P2C on our desk.

The AOC CU43P2C on our desk.

The AOC CU34P2C is quite comfortable on our 120 x 80 cm desk. The 27.5cm leg depth is not a big deal on a 80cm deep desk, but it will take up a lot of space on a shallower desk. The Ultra Wide Quad HD definition of 3440 x 1440 px is still just as pleasant to use, whether for office tasks with a comfortable workspace or in games where this definition remains in the good average of modern graphics cards. The resolution is still average with 110 pixels per inch, but a step back of 60 cm is sufficient. It is still necessary to provide a powerful card to properly exploit this definition at a frequency of 100 Hz.

Editor rating: 5 out of 5

colors and contrast



Out of the box and without changing the settings, the AOC CU34P2C shows a quality image. The color temperature curve is stable across the spectrum and the average measured at 6820 K is close to the 6500 K reference (video standard). The gamma curve also shows good stability, with an average similar to the target value (2.2). Finally, the colors can be considered faithful, since the average delta E is measured at 2, a value below 3, the threshold below which the human eye no longer perceives colorimetric drift. Only the blue drift (5.9) remains visible. Once the brightness is lowered to 23 – to obtain a white at 150 cd/m² – the measurements taken are very close. The gamma remains at 2.2 while the color temperature is slightly fairer (6800 K). After calibration, flawless rendering with an average Delta E of 1.1 and no hue exceeding 3. Average color temperature hits 6530K and gamma is still perfect. You can download the color profile in ICC format by clicking this link.

Contrast

Contrast

Editor rating: 5 out of 5

3640:1

This monitor displays excellent contrast. Black reduction to 0.04 cd/m² translates to a ratio of over 3600:1. The AOC CU34P2C does not perform as well as the best VA monitors, such as the MSI Optix MAG271CR, the Philips BDM4037UW or the Huawei MateView GT 34, whose contrast exceeds 4000:1, but it shows significantly better contrast than the AOC CU34P2C. monitors equipped with an IPS panel. This results in sufficiently deep blacks, even in the dark.

The average difference in brightness homogeneity is measured at 10% across the entire 34-inch panel. Note in passing that the model we tested was not affected by any cloudiness.

Editor Rating: 3 out of 5

Reactivity

This display does not use Pulse Width Modulation (PWM or “pulse width modulation“) to manage the LEDs of the backlighting system, allowing brightness to be reduced without risking a flickering effect that causes eye strain and headaches for those sensitive to it. This function is commonly called no sparkles. It also includes a blue light reduction mode via software settings.

This monitor supports FreeSync Premium between 48 and 100 Hz and therefore performs best when the graphics card is sending between 48 and 100 frames per second. We will still recommend a high-performance graphics card (such as the GeForce RTX 3070 Ti or Radeon RX 6700 XT) to take advantage of native Ultra Wide Quad HD definition and very high frame rates. In all cases, the fluidity is there and the image does not suffer from tearing problems (ripping) or idiots (micro stutter).

AOC CU34P2C: a versatile and affordable 34-inch 100Hz widescreen monitor

Reactivity

Editor Rating: 3 out of 5

9.5ms

We measured the afterglow time at 9.5 ms with theoverdrive (“Super Intensive” in OSD) set to “Medium”. By pushing theoverdrive at the maximum level (Strong), an effect of reverse ghosting appears The AOC CU34P2C is a little less responsive than the Iiyama GB3461WQSU-B1, with its 8 ms backlight time, but it is not a dedicated gaming monitor and this value is still quite correct for a casual gamer. Only Samsung models like the Odyssey G7 27 or 49G9 actually perform better and offer a limited afterglow time of 4.5ms, but they are aimed at competitive gamers and esports enthusiasts. Display lag is measured at 11.3 ms at 60 Hz, a very low value that translates to almost zero lag between the action performed with the mouse or keyboard and its impact on the screen.

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