That's because the Asus ROG Strix GL502 comes packing a brilliant and vibrant 1,920 x 1,080 IPS screen and then pairs it with some superb, top-tier gaming hardware. An Intel Core i7 processor and Nvidia GeForce GTX 1070, along with 16GB of DDR4 RAM makes short work of any title at that resolution (and often consistently surpass 60fps!) and makes playing games a totally stress-free experience in terms of performance.
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.
Right now, Nvidia graphics cards are found on the overwhelming majority of new gaming laptops. You’ll generally find laptop specific parts on machines launched in 2014 and 2015 (such as 950M, 960M etc), but from this year all Nvidia laptops get full desktop-level GPUs. This is because the company’s ‘Pascal’ architecture is so efficient it can squeeze into the same space as an old-style laptop GPU without needing extra cooling. Look out for 10-series cards such as the GTX 1050, GTX 1060, 1070 and 1080.
We also liked that the laptop, despite its very thin 0.8 inches, features a lot of connectivity. You get two USB 2.0, two USB 3.0, a LAN jack, HDMI, plus a card reader. It's a great setup, leaving no modern ports left to be desired. Speaking of modern, the ASUS Metal also sports a very good anti-glare display, plus dual fan cooling to keep the laptop running smooth during gaming sessions.
One of the typical features that sets apart a gaming laptop is a colorful, backlit keyboard. These vary quite a bit from model to model, with more elaborate backlighting going hand-in-hand with higher prices and a higher general level of other components. Almost all budget gaming laptops will employ single-color backlighting (most often, red or white) to keep costs down. The next step up is lighting programmable by zone, with three or four blocks of the keyboard independently customizable in different colors, but this is not common in budget machines. Keyboards with per-key, individually programmable lighting are the province of high-end machines only.
Updated Nov. 25 at 5:45 a.m. ET: You can snag some inexpensive gaming laptops for great prices through Cyber Monday. The Lenovo Legion Y530 is on sale for $100 off from Best Buy, while the 15.6-inch Dell G3 can be had for $649 from Walmart — a savings of $350. The Dell G5 is also on sale for $899 from Walmart ($400 off!) A sale at eBay knocks the MSI GL63 down to $969, for a savings of $229. Check out our Cyber Monday hub for more fantastic deals. 
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