Eizo ColorEdge CS2730
We already stated this before: the Eizo ColorEdge CS2730 is a lot more expensive than three of the other four test participants. For this you do get a monitor with a five year warranty (two more than usual), the well-known Eizo construction quality and the ColorNavigator calibration software.
In terms of connectivity Eizo offers a single hdmi, dual-link dvi and displayport connector. Also included is a usb 3.0 hub with two host-connectors - but also two upstream-connectors, so that two systems can be connected and operated at the same time. A shading hood is an optional accessory with this model, which costs 140 pounds / 151 euros. A separate EX3 colorimeter that allows you to calibrate the monitor does not cost a lot in comparison at 82 pounds / 89 euros.
With the test results in standard mode a relatively high brightness of black stands out, which is also seen with lower brightness. The contrast is rather modest because of this, between 550 and 600:1. In AdobeRGB-mode we measure a coverage of 97.1% of the colour space, after HP the best result in the test in that mode. The average colour deviation in that mode ends up at 3, which is remarkably high in comparison with the competitors. The standard deviation is relatively high as well; the same can be said of the grayscale deviation. This is more or less seen in other modes as well.
When we calibrate the CS2730 we end up at an AdobeRGB-coverage of 98% and an average colour deviation of 3.4, while the average grayscale deviation is 4.64. The standard deviation is a lot lower, but still clearly higher than those of Benq and Dell. In terms of power consumption the CS2730 stands out in a negative way: it is a lot less efficient than the other three test models, both at 150 candela as well as at maximum brightness. The power consumption in standby is also rather high.