Dell Precision 7540 (15.6-Inch, 2019)

Spectacular eight-core Xeon CPU and Quadro RTX 5000 graphics. ; Excellent 4K display. ; Comfortable keyboard.

Pricey when tricked out. ; Brief battery life. ; No onboard color calibrator.

When it comes to 15.6-inch laptops, mobile workstations make gaming rigs look like wimps—and the new king of the hill is Dell's costly but colossal Precision 7540, tested in a maxed-out Xeon/Quadro RTX configuration.

Excellent 4K HDR display ; Best-in-class computing power ; Great battery life ; Strong security options

Low-quality webcam ; Very expensive, especially with 4K display

If you're all work and maybe a little play, the Dell Precision 7540 is one of the best straightforward workstation around.