The VG2427wm achieved a brightness score of 266 candelas per square meter (cd/m2)--shy of ViewSonic's claimed 300 cd/m2 max. The Dell G2410 achieved a lower brightness with 234 cd/m2, but was closer to Dell's 250 cd/m2 claim. On our dark screen test, the ViewSonic exhibited some backlight bleed through on the top and bottom edges of the screen. Our Kill Bill Vol. 1 DVD test yielded apparent ghosting on the ViewSonic and colorwise, the Dell wins with much more balanced and accurate colors. The ViewSonic's color looked slightly washed out in comparison.
Unreal Tournament 3 looked great and had vibrant colors running at a 1,920x1,080-pixel resolution. We saw no signs of input lag, blurring, or streaking during fast movement.
The optimal viewing angle for a monitor is usually directly in front, about a quarter of the screen's distance down from the top. At this angle, you're viewing the colors and gamma correction as they were intended. Since most monitors are made to be viewed only at that angle type, picture quality at nonoptimal angles can vary. Like most monitors, the ViewSonic VG2427wm uses a TN panel, which gets overly bright or overly dark when viewed from nonoptimal angles. When we viewed the Asus from the sides or below, the screen appeared to darken only a couple inches from optimal. From the sides and below, text is still readable until viewing from about 70 degrees. Of course, when viewed from the optimal angle, we had no problems.
In the power consumption tests, the ViewSonic VG2427wm drew 39.37 watts in its Default/On mode--compared with the Dell G2410's much lower 23.22 watts. The ViewSonic's standby mode drew 0.42 watts compared with the G2410's 0.48 watts. Based on our formula, the VG2427wm would cost $12.04 per year to run, compared with the G2410's $7.26 per year. Putting the VG2427 in the Conserve Eco mode brings its price down to $6.94 per year.
(Longer bars indicate better performance)
(Longer bars indicate better performance)
(Longer bars indicate better performance)
Find out more about how we test LCD monitors.
Service and support
The ViewSonic VG2427wm comes with solid coverage including a three-year warranty that covers parts, labor, and the backlight. The company offers 24-7 toll free technical support and support via e-mail. However, there is no Web-chat support like some other vendors offer. Navigating ViewSonic's Web site and finding drivers and the user manual was easy.



