These budget systems typically won't include a lot of gamer bling like customizable RGBs and multi-zone keyboard lighting. Many will cut necessary cost corners by using a plastic chassis instead of aluminum, and you won't see sexy thin bezels like those on the MateBook Pro or Dell XPS 13. You'll also get, at minimum, 3 USB ports, an HDMI output and standard headphone jacks.
If the refresh rate (which is measured in hertz, or Hz) is being called out as a feature on a given laptop, that means it's likely higher than the norm. Most laptop screens, including those in almost all budget models, stick to 60Hz, which means they redraw the onscreen image 60 times per second and thus can display up to 60 frames per second (fps) of in-game performance. (If your graphics chip can produce 90fps in a given game, you'll see only 60 of them.) Some notebook screens these days, though, can display at 75Hz, 120Hz, or more. These high refresh rates can be beneficial for some extremely fast-paced games, particularly titles played competitively online, such as Counterstrike: Global Offensive, DOTA 2, and Overwatch.
Gaming laptops can put a serious dent in your wallet, with some of the fancier models costing upward of $3,000. But who says that the right rig has to cost an arm, a leg and the soul of your firstborn? Fortunately for the fiscally conscious gamer, there are some sub-$1,000 notebooks that can run graphically taxing games like Destiny 2 and Shadow of the Tomb Raider at solid frame rates.