To read about our monitor tests in-depth, please check out Display Testing Explained: How We Test PC Monitors. We cover brightness and contrast testing on page two.
Uncalibrated – Maximum Backlight Level
The Lenovo’s old-school TN panel wins the brightness contest, but the GFI24CBA has more than enough light output to deliver a picture that pops. It’s rated for 300 nits, so kudos to my sample for beating that number. Black levels and contrast are respectable but average for this group. The top three screens are standouts with over 1,200:1, something I don’t often see from IPS monitors. They all cost more than the Viotek.
After Calibration to 200 nits
Calibration slightly improves the GFI24CBA’s fortunes. Now, it ranks closer to 1,200:1, and with a slightly dark gamma, the picture has a lot of depth. Color is a bit oversaturated, too which adds to the image’s dimensionality.
The Viotek does even better in the ANSI test, which takes screen uniformity into account. It’s less than one point out of second place and well above average for IPS panels as a whole. Coupled with solid color, the GFI24CBA delivers a solid image for the money.