Although the E15 comes with a Full-HD IPS display, some have noted that it is fairly dim compared to higher end displays. Regardless, you will get decent viewing angles and the matte finish will prevent any potential glare. It has a solid battery life of around 8 hours and 30 minutes,  with Acer even claiming up to 15 hours of battery life, though heavier applications and games will drain its battery life a lot faster. The NVIDIA GeForce MX150 is by no means a beast compared to higher end cards, and most modern AAA titles will struggle somewhat, but lowering the graphics will afford you some playability even on next-gen titles.
In an effort to produce sleeker, more portable gaming laptops, Nvidia launched an initiative in 2017 named Max-Q, a term borrowed from the aeronautics industry. In that scenario, it describes the maximum amount of aerodynamic stress an aircraft can sustain. Here, it refers to a combination of hardware and software modifications that allow higher-end graphics cards to fit into thinner chassis than traditionally possible. By limiting the power ceiling of cards like the GTX 1080 and GTX 1070, less heat is produced, meaning less room is needed for cooling and heat dissipation.
For proper functioning of GPU, it is essential to have VRAM of their own. This is beneficial in storing different frames, textures and other required properties for getting frames for the monitor. Finding out how much you require may be tricky. Hence, it is better to go for a laptop with as much VRAM as possible. You can buy a laptop with 3-4 VRAM. If you have reduced budget, you can opt for 2 GB VRAM. You, however, need to ensure that the resolution of the gaming laptop is 1080P.

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. 
×