Display: We focused on 15-inch models for this guide because they strike a good balance between screen size and relative portability, and they fit our budget. Our cheap gaming laptop pick needs a 1920×1080 screen—no exceptions. Lower resolutions look terrible, and higher resolutions aren’t affordable yet. (And our budget laptops’ GPUs can’t play games well at resolutions above 1080p anyway.) Very few laptops in this price range have high-refresh-rate (120 Hz or 144 Hz) panels, but it’s a nice bonus, especially for first-person games like Overwatch or Doom; the higher the refresh rate, the smoother animations appear, as long as the frame rate is also high. IPS screens tend to provide better viewing angles and color reproduction over TN panels, but they can also be more expensive, so we treat them as a preference but not a requirement.
A computer’s internal components heat up whenever a lot of demand is placed on them. Despite the best efforts of manufacturers to dissipate this heat using fans and heat pipes, some areas of a laptop tend to get hotter than others. This can make gaming laptops quite uncomfortable to use (especially when placed on their user’s lap!); this high heat can also endanger a laptop’s internal electronics if the computer’s ventilation slots become obstructed (be careful not to let your computer’s ventilation system get clogged up with dust!). If you intend to place your computer on your desk and use an external mouse for gaming, its temperature will not be a major consideration.
In addition to poring over our reviews and checking out the vendors' sites, using the price filters at a reseller like Newegg.com can help you see different configurations at different price points. Some manufacturers offer lots of differently weighted versions of the same laptop (say, more storage in one config, a better GPU in another). Playing with the filters on these sites can be an illuminating exercise in give-and-take.