Displays & Monitors

AOC 27″ Q27G4X IPS 180Hz FreeSync Gaming Monitor Review

Display Analysis

Colour reproduction is indeed very good on this monitor, scoring a Delta-E of just 1.33 on average. Give that anything under 5 is reasonably good, under 3 is excellent, and anything below that is fantastic, it’s fair to say this monitor reproduces colour very accurately.

The Gamma curve was a bit off on this monitor, so for the sake of being thorough, I decided to test each of the Gamma settings in sequence to see which one actually gave an accurate 2.2 result, as each of them was actually a bit off from what they claimed to be. As you can see, using the default 2.2, it recorded Gamma 2.1.

At setting 1.8 it came in at 1.7, far from ideal.

This resulted in a pretty poor grey ramp too.

Setting it to 2.0 came in at 1.9, but actually quite closer to the 1.8 Gamma.

Again the gray ramp wasn’t fantastic, but did have very little deviance.

2.2 was the default, but again that came in a little shy of 2.1.

It did have a much smoother grey ramp though, which is good to see.

Setting it to 2.4 needed a much more desirable result, showing as 2.3, but actually very close to an accurate 2.2 reading.

This also resulted in the cleanest grey ramp yet, sitting around 6700K for most of the range.

And finally, 2.6 came in at 2.4, which was way off.

This also saw a good grey ramp, but overall, I think setting this monitor to Gamma 2.4 is going to give you very accurate results.

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Peter Donnell

As a child still in my 30's (but not for long), I spend my day combining my love of music and movies with a life-long passion for gaming, from arcade classics and retro consoles to the latest high-end PC and console games. So it's no wonder I write about tech and test the latest hardware while I enjoy my hobbies!

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