Acer XB270HU 27-Inch IPS 144Hz G-Sync Monitor Review

Why you can trust Tom's Hardware Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.

Color Gamut And Performance

For details on our color gamut testing and volume calculations, please click here.

In the XB270HU's Standard mode, we see good accuracy in the color saturations, but there are a few hue issues in the secondary colors, especially magenta. Since the gamma is where it should be, all that's needed to fix things is a grayscale calibration. Bringing the white point in line will pull the secondaries onto their targets and firm up the luminance levels too.

The XB270HU omits the color management system found in the XG270HU but obviously it's not needed here. Every color is on target for both saturation and hue, and luminance levels are near perfect. Aside from a slight over-saturation in the red primary, this is an excellent chart.

Now we return to the comparison group.

Since the Overlord Tempest was calibrated through a LUT, the XB270HU is the winner of the calibrated-by-OSD competition. Only an expensive pro-screen will post a better result than this. Its color accuracy obviously outperforms most gaming monitors.

Gamut Volume: Adobe RGB 1998 And sRGB

If gamut volume is an important metric in your work, then the XB270HU offers a little bonus red bringing up the total to over 107 percent of sRGB. The Monoprice sits atop the ladder thanks to its Adobe RGB gamut, which may not be ideal for gaming or entertainment purposes.

Christian Eberle
Contributing Editor

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.