Last but not least, if you're a professional gamer looking to buy a gaming laptop that can keep you competitive, be prepared to brown-bag your lunches for a while. That kind of high-end performance can only come from top-of-the-line components, especially in a portable package, and they don't come cheap. Plus, an emerging trend among high-end machines is a high-refresh-rate screen built into the laptop, which allows for display of lofty frame rates in full to smooth out the perceived gameplay. Note, though, that you'll need a powerful graphics chip to leverage the benefits of a high-refresh panel with demanding games. You'll be able to identify machines like these by marketing lingo touting, say, a 120Hz or 144Hz screen. (A typical display on a laptop is a 60Hz panel.)
You'll immediately want to buy a gaming mouse; even the nicest touchpads are garbage for gaming. The Logitech G series has been the gold standard for years; Razer makes well-reviewed mice, too. Depending on how hot your laptop gets, you may want a cooling pad, as well. And if you've sprung for a pricier laptop, you may want a second monitor for some games.
You'll see guides from 2017 or even from this year still recommending laptops with Nvidia's 900 series mobile GPUs, for example the 950M or 960M. Don't settle for these. Nvidia's Pascal architecture in its 10-Series graphics cards is a huge leap forward in performance and power efficiency. You may save $50 to $75 on these systems, but you won't save yourself a few years of disappointment.
We recommend the $1,250 model with an Nvidia GeForce GTX 1060 Max-Q graphics processor with 6 GB of dedicated memory, an Intel Core i7-8750H processor, 16 GB of RAM, a 128 GB solid-state drive, and a 1 TB hard drive. The G5 is available in black or red, and has a red-backlit keyboard in place of the G7’s blue-accented design. But because of the screen, we recommend the G5 only if the G7 is unavailable.
GPU or the graphics processing unit is considered to be the most vital part of the gaming laptops. This chip is doing the hard work, thereby providing you the eye candy. It is recommended to choose a laptop with a powerful GPU for running the most demanding games. The GTX 760M or Geforce GTX 850M happens to be the least requirement for those gaming laptops. You can also go for the laptop with GPU of 800 or GeForce GTX 700 series as they are recommended for the games of today.
Minimal Portability (17 - 18 inches): If you plan to keep your laptop in your home and leave it on your desk or just move it between rooms, a system with a 17 or 18-inch display like the Alienware 17 should be fine. Laptops in this size range are usually the most powerful, because they have plenty of room for heat-generating components. However, they're heavy to carry, a tough fit for most bags and too power-hungry to use unplugged for very long.
IMO the Roccat Kone is a great mouse. Comes with weights to make it heavier if you don’t like how it feels, the XTD version comes with OLED strips on it that are customisable to 4 different colours (two on each strip one top one bottom on both sides that blend together in the middle) and they have just released the LEADR which is the wireless version.