- Good picture quality out of the box
- Excellent response times
- FreeSync support
- Nice design features
- Good connections
- Refresh rate: 70 Hz is a bit low, especially for FreeSync
- Outdated OSD
- Contrast isn’t great
The Iiyama ProLite B2783QSU is a QHD monitor with a 2560 x 1440-pixel display, a decent finish and plenty of handy design features. The price tag is attractive too. But it’s above all the FreeSync function that’ll appeal to gamers on a budget.
- Screen size : 27 inches
- Panel type : TN
- Resolution : 2560 x 1440 pixels
- Response time : 1 ms
- Inputs (HDMI / DVI / VGA / Component) : 1 / 1 / NC / NC
- Other details : 2 x USB 3.0
The Iiyama ProLite B2783QSU has a 27” TN screen panel with 2560 x 1440 pixels and is compatible with AMD’s FreeSync technology for variable refresh rates when gaming. Selling for under $400/£400, this model offers excellent value for money. In fact, the only cheaper alternative is the AOC q2778Vqe, which doesn’t offer the same design features or FreeSync support. This Iiyama monitor has a height-adjustable stand with screen tilt and swivel functions, and the display can pivot into portrait mode. There are plenty of connection ports and Iiyama has even included a pair of built-in speakers.
DESIGN & BUILD
Matte plastic casing and matte screen
Design-wise, the B2783QSU is classic Iiyama stuff. The screen is matte and has an anti-glare finish to keep reflections at bay. And, like the Prolite B2483HSU-B1 and XB2783HSU, Iiyama has kept the screen bezel as slim as possible. The design is inoffensive and will fit easily into most workstations. The casing is made from matte black plastic, which doesn’t feel amazing in quality, but it does at least hold up well over time.
Height-adjustment, tilt function, portrait mode
Like higher-end Iiyama monitors, the B2783QSU comes with plenty of mechanical features. The stand is height-adjustable over 13 cm, the screen tilts from -5° to +22°, the stand swivels by around 45° and the screen pivots into portrait mode. The switch from portrait to landscape and back is perfectly smooth with no creaking plasticky noises, which is testament to this monitor’s good build quality and finish.
Iiyama is also generous with connections, offering an HDMI port, a DVI Dual Link port and a DisplayPort 1.2 entry, which you’ll need for the FreeSync mode. There’s a headphones out port and an audio line in for inputting sound to the monitor’s pair of two-watt built-in speakers. Plus, there’s a USB hub with two USB 3.0 ports on the monitor’s left-hand edge. The cherry on the cake here is that the B2783QSU comes supplied with a DVI cable, a DisplayPort cable, an HDMI cable and an audio cable.
Out of the box, the B2783QSU guzzles 43 watts of power, but this drops to a more reasonable 24 watts with the brightness at 150 cd/m² (brightness setting 19), which works out at 119 W/m². It’s therefore not the most energy efficient monitor on the market, as some models push down under 100 W/m².
The main downside of this monitor’s design and handling is the On-Screen Display (OSD), which isn’t very well designed. There are five buttons for navigating through the menus, but their specific functions aren’t easy to understand and the menus themselves take you straight back to the 90s. It’s a far cry from Asus with its handy joystick or BenQ menus.
COLORS & CONTRAST
Default settings: color temperature over grey scale = 6249 K
Default settings: gamma = 2.2
Default settings: Delta E = 2.3
Straight out of the box, picture quality isn’t half bad in the B2783QSU. The gamma is almost perfect, averaging at 2.2 and proving just a little wobbly in the white. The average color temperature works out at 6249 K, which is very close to the “ideal” value of 6500 K. While red and green are way off the mark in terms of true fidelity, the average Delta E (the difference between “perfect” colors and those displayed onscreen) works out at just 2.3. Contrast is a low, however, at 948:1, but that’s pretty typical for a TN display.
Manual settings: color temperature over grey scale = 5829 K
Manual settings: gamma = 2.2
Manual settings: Delta E = 2.6
By dropping the brightness setting to 19 and switching the contrast to 85, actual screen brightness works out at 150 cd/m².This in turn makes the gamma a little less stable, but the average stays at 2.2 and color temperature drops to 5829 K. Colors are a little less accurate, with the average Delta E at 2.6. Still, the Delta E remains under three, so colors will still look perfectly rendered to the human eye. Contrast drops slightly to 921:1.
Calibration: color temperature over grey scale = 5985 K
Calibration: gamma = 2.3
Calibration : Delta E = 2.4
Calibration with a colorimeter doesn’t improve things much, bringing the average gamma to 2.3 and the average color temperature to 5985 K. The colors do, however, get a little more accurate, with an average Delta E of 2.4.
Contrast is still disappointing, at 913:1.
RESPONSIVENESS — 6.5 ms
This display doesn’t use a Pulse Width Modulation (PWM) function. PWM varies the brightness of the LED backlights, which some people perceive as screen flicker. In some rare cases, PWM can lead to eye strain and headaches.
With Overdrive set to 1, we measured the average response time at just under 7 ms, which is a great score for a TN display, even though the BenQ XL2430T manages to do better with 5 ms. The Iiyama B2483HSU came in at 6 ms and the BenQ XL2420G at just 4 ms.
Like other Iiyama monitors, the B2783QSU comes with an overdrive function to help limit the effect of ghosting. This is switched off with the monitor’s out-of-the-box settings. Set to 1, ghosting disappears but a very slight trace of reverse ghosting can be seen. Thankfully, it’s not too distracting.
Input lag was measured at just 10 ms. Latency between a frame being sent from the source and being displayed onscreen is therefore tiny, and shouldn’t bother even hardcore gamers.
FreeSync versus G-Sync
It’s not easy to compare the performances of AMD’s FreeSync with those of Nvidia’s G-Sync. When tested with the XFX Radeon R9 290 graphics card, games seemed a little less super-smooth with FreeSync, but then AMD’s system did manage to avoid image tearing when sync dropped out. Plus, this Iiyama monitor has a maximum refresh rate of just 70 Hz, or 70 frames per second, whereas G-Sync monitors often boast refresh rates topping 120 Hz, which also helps keep the image looking smooth.
In practice, both systems have trouble keeping the refresh rate synced when the number of frames per second sent from the graphics card isn’t in the refresh rate range supported by the monitor. The Iiyama B2783QSU supports 50 to 70 Hz, so it’s preferable to keep the game running at 50 to 70 frames per second. When the graphics card drops the rate to 30 or 40 fps, the image can stutter. We found stutter to be more marked with FreeSync than with G-Sync. Still, FreeSync is a good alternative to Nvidia’s G-Sync. Plus, it’s much more affordable, as this 27″ Quad HD monitor really isn’t over-priced (for once!).