Each gaming mouse will have a DPI range (e.g. 200 – 8,000), and the user can select a point in between that feels comfortable. A very high DPI would be something like 16,000. Most office mice will have a DPI of well below 1,000, by comparison. The majority of gamers will find 800 to 3,000 comfortable, but you can train yourself to cope with higher sensitivities over time.
The key thing here is to know what you're getting, and to make sure you have the appropriate port free (or that you have Bluetooth support). If you opt for a cabled mouse, don't forget to check the cable length. Is it long enough to reach from a PC tower on the floor to your desk? Is it six feet long, but only needs to run from your mouse pad to the laptop beside it? Also look at the cable itself. A braided nylon or cloth cover is more durable than a standard rubber coating.
Although priced slightly higher than $500, the Aspire E 15 E5-575G-57D4 has earned our top pick in the budget gaming category thanks to its dedicated NVIDIA GeForce 940MX graphics card which offers more than twice the performance of competing laptops with only integrated graphics units. The Aspire E 15  will run titles such as Overwatch, Battlefield 1 and Titanfall 2 on low to medium settings with graphics performance more than double than competing integrated graphics based laptops below.
Matthew Buzzi is a Hardware Analyst at PCMag, focusing on laptops and desktops with a specialty in gaming systems and games. Matthew earned a degree in Mass Communications/Journalism and interned for a college semester at Kotaku, writing about gaming before turning it into part of his career. He spends entirely too much time on Twitter (find him @M... See Full Bio
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.

There are currently many different types of displays on the market; however, the standard remains the 15.6″ or 17.3″ Full HD (1920 x 1080 pixels) display. Some manufacturers, such as Dell (Alienware) even offer 13.3-inch displays. There are even a few QHD (2560 x 1440 pixels) displays on the market (Dell Alienware again) as well as a few 4K (3840 x 2160 pixels) displays.
It has an average battery life of around 5 hours, 30 minutes according to reports, and most reviewers have pointed out that the audio quality is good overall. The Intel UHD 620 graphics won’t win any awards for gaming performance, but it will allow you to run some classic titles well, and even some newer titles on low settings (see this video). It also comes with USB 3.1 with a reversible USB C connector for super fast data transfers. ASUS’s new Vivobook F510UA-AH51 15.6-inch laptop offers a great performance for the price, and its portability and solid construction makes it well suited for business people constantly travelling.
And thanks to Nvidia's 1050 Ti GPUs, you can hook up an Oculus Rift and jump into the virtual realm.  However, some companies like Dell and Gigabyte are outfitting their rigs with Nvidia GTX 1060 Max-Q GPUs so fans of the HTC Vive can also get in on the fun. Or if you're not ready to make such a big financial or space commitment, you can hook up one of Microsoft's new MR headsets like the Acer Windows Mixed Reality AH101 headset, which has the added bonus of working with either discrete or integrated graphics. Best of all, you can use all that money you just saved to splurge on a top-notching gaming keyboard or mouse. 
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