Results: Color Gamut And Performance
Color gamut is measured using a saturation sweep that samples the six main colors (red, green, blue, cyan, magenta, and yellow) at five saturation levels (20, 40, 60, 80, and 100%). This provides a more realistic view of color accuracy. Since there are no color management controls on the HP E271i, we're only showing the post-calibration graphs (although we’re sure they'd look pretty much the same out-of-box).
We’ve seen the oversaturation of blue on a few other screens, so this chart is not out of the ordinary. You can also see that green, yellow, and magenta are clocked slightly away from their targets. The errors are fairly small, as shown on the bottom Delta E chart. In fact, things look pretty good until you pass the 60 percent saturation level. Color luminance (middle chart) also dips for red, magenta, and blue as the saturation level rises.
Thanks to its excellent mid and low saturation color accuracy, the VG248QE’s color error average stays just below the visible level of three. HP's ZR30w is the only screen we’ve tested this year that finishes over three. This tells us that most monitors out there are pretty close to either the Adobe RGB 1998 or sRGB standard. It’s getting harder to buy a bad screen these days!
Gamut Volume: Adobe RGB 1998
There are basically two categories of displays in use today: those that conform to the sRGB/Rec 709 standard (like HDTVs) and wide-gamut panels that show as much as 100 percent of the Adobe RGB 1998 spec. We use Gamutvision to calculate the gamut volume, based on an ICC profile created from actual measurements. The chart is also expanded from previous reviews to include the sRGB gamut volume.
None of the sRGB-compliant screens we’ve tested reach the 100-percent mark. At 93.1 percent, the VG248QE does pretty well. This is more than adequate performance for any sort of entertainment use, from movies to games.
Current page: Results: Color Gamut And PerformancePrev Page Results: Grayscale Tracking And Gamma Response Next Page Results: Viewing Angle And Uniformity
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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.
I gotta wonder if 1 ms vs 5 ms really makes a difference...Reply
I own this. Bought when it was first available. Great monitor for gaming. I use 2x GTX Titans with it.Reply
i don't like the sound of this dithering BS, i guess that's why its cheap....Reply
if I have $300 dollars I will not buy for 24 inch "TN" screenReply
IPS is much better then TN
People who think 144 Hz is more important than an 8-bit panel are in for a big, big fail.Reply
This monitor uses PWM (Pulse Width Modulation) for the backlight, which causing flickering. The only 144hz monitor that does not use PWM is the BenQ XL2420TE.Reply
they only sell BenQ XL2420T version in my country, so i bought the asus for the double pwm hz. pwm, the scourge og the lcd monitor.Reply
ryude - yes, it uses PWM, however, as an owner of one of these monitors, I have not noticed any flickering at all. It's a really solid performing monitor. That same PWM comes in real handy when running in Lightboost mode for even more reductions to input lag.Reply
CaptainTom, 1ms makes a huge difference over 5ms. I didn't think it would at first until I bought one of these. Next to my old 24" HDTV that was my monitor for awhile, the difference is insane.
PS , Christian, your SmartBuy award photo at the end of the article is the wrong ASUS monitor ;) Also, would you guys mind releasing the ICC profile you guys calibrated for your tests?Reply
The final picture is not of the VG248QE?Reply