The Alienware m15 and m17 are two peas from the same pod, with the former being built around a 15-inch display, while the latter makes use of a 17.3-inch display. No matter which notebook you select, you'll have the choice of a 1080p (up to 144Hz on the m15) or 4K display panel. The m17 also offers a third option: a 2560x1440 panel with a 120Hz refresh rate.
When it comes to graphics, base systems are fitted with a Pascal-based GeForce GTX 1050 Ti with 4GB of GDDR5 memory. However, for those that require a bit more power, you can start off with a GeForce RTX 2060 with 6GB of GDDR6 memory. From there, your choices expand to include the GeForce RTX 2070 with Max-Q design (6GB GDDR6) and finally the GeForce RTX 2080 with Max-Q design (8GB GDDR6).
On the processing front, you can select from 8th generation Core i5, Core i7 or Core i9 processors. The most potent of the bunch, however, is the Core i9-8950HK, which is an unlocked 6-core (12-thread) CPU that features can Turbo Boost to 4.5GHz. Those processors come standard with 8GB of DDR4-2666 memory, but can be expanded up to 32GB (there are two SO-DIMM slots).
With regards to storage, you can install up to two NVMe PCIe SSDs in the Alienware m15 and m17, topping out with two 1TB SSDs in the top configurations. You'll also find a fully assortment of ports including Killer Networks E2500 GbE, Thunderbolt 3 and USB-A 3.0. There's also HDMI 2.0 and Mini DisplayPort connectors along with an Alienware Graphics Amplifier Port.
Dell says that the Alienware m15 can last up to 17 hours per charge with its its optional 90 WHr battery, while the m17 is only quoted as having "exceptional battery life" with its own optional 90 WHr battery.
Both the Alienware m15 and m17 are available in Epic Silver or Nebula Red, and are priced from $1,579 starting on January 29.