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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



To see the B247Y’s maximum brightness, it’s necessary to turn on the Max Brightness option, it’s off by default. Then, you get around 288 nits, which isn’t super bright but is bright enough for the office, or a dorm room, or the media room where your budget gaming PC lives. You can get a little more light in this segment from the other screens (except the Philips), but the difference isn’t significant.
VA panels offer deeper black levels, so if you want more than the B247Y’s solid 1,351.2:1, you’ll have to forgo thoughts of an IPS monitor. This is a very respectable number though, and it’s comfortably above the segment average, as is the GS27FA.
After Calibration to 200 nits



Calibration doesn’t change the results much with the B247Y still checking in around 1,300:1. It offers decent black levels and solid contrast performance. It also fares well in the ANSI test with a consistent 1,251.1:1 score. This is excellent performance for the value IPS segment.
Test Takeaway: The best non-OLED black levels and contrast come from VA panels, so if dynamic range is a priority, the B247Y’s IPS tech isn’t the best choice. But if you want better viewing angles and some extra color volume, then it is an excellent choice. And it outperforms many more expensive IPS screens.
MORE: Best Gaming Monitors
MORE: How We Test PC Monitors
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Christian Eberle is a Contributing Editor for Tom's Hardware US. He's a veteran reviewer of A/V equipment, specializing in monitors. Christian began his obsession with tech when he built his first PC in 1991, a 286 running DOS 3.0 at a blazing 12MHz. In 2006, he undertook training from the Imaging Science Foundation in video calibration and testing and thus started a passion for precise imaging that persists to this day. He is also a professional musician with a degree from the New England Conservatory as a classical bassoonist which he used to good effect as a performer with the West Point Army Band from 1987 to 2013. He enjoys watching movies and listening to high-end audio in his custom-built home theater and can be seen riding trails near his home on a race-ready ICE VTX recumbent trike. Christian enjoys the endless summer in Florida where he lives with his wife and Chihuahua and plays with orchestras around the state.