Mice aimed at first-person shooters, for one, tend to feature ratcheting scroll wheels—letting you cycle through your arsenal without selecting the wrong weapon—and on-the-fly resolution switchers. The latter will help you snap-change between the broad tracking you need in a frantic shootout and the tight control for lining up a sniper shot. (Sometimes this feature is dubbed something like "sniper mode," and it may involve a dedicated button for getting granular.)
Gaming laptops need to have the necessary processing power to run high-end games. Laptops with good processing speed help run your games seamlessly without any lag. When it comes to a CPU, the important elements to be considered are the number of cores it contains and its processing speed. A laptop with a powerful CPU ensures a lag-free gaming experience.
Look for Intel Core i5 processors in midrange systems, with Core i7 U, HQ, and HK processors in higher-end gaming laptops. The H-series processors are higher-power, and tend to show up in bigger, thicker laptop models, while the low-power U-series chips are designed for thinner, more portable machines. They are quite different, in terms of thermal profile, as well as overall performance potential; a U-series Core i7 processor may not even have the same number of processing cores as an H-series Core i7 chip.
Dell recently phased out its entry-level gaming-laptop series in favor of something more exciting and powerful. Meet the G7 15. Visually, the G7 15 is cut from a different cloth than either the Inspiron or the Alienware brands, giving the laptop an identity of its own. And it offers solid overall performance for all your multitasking needs. But more importantly, thanks to its Max-Q GTX 1060, you can expect good frame rates on AAA titles on medium to high settings.