Gaming laptops are one of the best ways to get into PC gaming with competitive prices for mid-range systems and a plug-and-play mobile experience. However, your screen choice is far more important in a gaming laptop than usual.
For a good gaming experience, a gaming laptop screen needs to offer a snappy, blur-free experience. Preferably while offering good color reproduction! In the past, to get that snappy blur-free experience, the go-to panel technology was TN or "Twisted Nematic." However, this panel technology is known for its washed-out look compared to the more popular IPS panel technology. With advancements in IPS technology, most good modern laptops will come with an IPS screen. OLED technology is also slowly entering the market, and would be the overall superior option on all fronts if your budget allows.
If you're worried about using a gaming laptop for other types of work that are sensitive to screen color performance, then you should know that most modern IPS gaming laptop screens are often good enough to do color work on, though you'll have to check the color gamut and calibration of individual models to be sure.
Gaming laptops generally range from 14-inches for ultraportable systems to 17.3-inches for larger desktop-replacement class systems. There have also been 18-inch, 19-inch, and even 21-inch gaming laptops, but such enormous screen options are rare. Since you can easily adjust how far or close to your gaming laptop you sit, screen size isn't the be-all it might be with a TV or computer monitor on a desk. However, 14-inch systems are likely too small for most people to game comfortably on, depending on the types of games you enjoy.
As with most laptops for general-purpose use, a 15.6-inch screen will do for most people most of the time. However, that's only true if you'll be gaming on an external display or if your gaming laptop is not
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