Clevo is king of the hill in terms of true DTR machines, and the P870TM is their latest incarnation, featuring up to a Core i9-9900K desktop class CPU, and up to SLI GTX 1080 for the ultimate in performance. As a true DTR you can outfit it with 64 GB of DDR4, and basically whatever combination of storage you'd like. The 1920x1080 144 Hz G-SYNC display is on the low-side in terms of resolution, but with the high refresh the gaming will be incredibly smooth, since this is one of the few laptops that can easily drive the maxium refresh rate on this resolution. Being a DTR though, you could also just connect it to a UHD display on your desk as well.
So what hardware is inside? Well, you get the popular Intel Core i7-4720HQ 2.6 GHz processor, capable of handling current games on high settings. The CPU is paired with the excellent and highly-recommended NVIDIA GTX 960M GPU. It's an amazing graphics card that offers high gaming performance at a great price. All that is combined with a very fast 256GB solid-state drive and a high-quality screen. The HP OMEN delivers a very good hardware combination for the price.
High-end systems, meanwhile, should guarantee you smooth gameplay at 1080p with graphics details maxed out, and might let you play at 4K resolution (if the screen supports it). A high-end model should also be able to power a VR headset and support additional external monitors. These machines tend to come with speedy storage components such as 512GB PCI Express solid-state drives, and they are priced above $2,500. Some support 3K to 4K screens, a hard drive to supplement the SSD, and ultra-efficient cooling fans as optional extras. A few elite boutique models will support dual graphics chips. (Such rare-bird machines will be massive and expensive, with minimal battery life.)
Also look at the key layout. Models with an isolated cluster of arrow keys or well-defined WASD keys get bonus points, in our book. Also, because most budget gaming laptops are 15.6-inch models, check for a dedicated number pad to the right of the main key area, if you prefer to have one—or not, for that matter. Some machines of this screen size will have one, some won't. (A 17-inch laptop almost invariably will, however.)
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