The W-series laptops were introduced by Lenovo as workstation-class laptops with their own letter designation, a descendant of prior ThinkPad T series models suffixed with 'p'. The W-series laptops offer ISV certifications from various vendors such as Adobe Systems and Autodesk for CAD and 3D modeling software. Notable exceptions are the W500, which has ATI FireGL integrated workstation-class graphics, and the W550s, which is an Ultrabook-specification laptop with only a dual-core processor. Most W-series laptops offer high-end quad-core Intel processors with an integrated GPU as well as an Nvidia Quadro discrete GPU, utilizing Nvidia Optimus to switch between the two GPUs as required.
The ThinkPad W-series laptops from Lenovo are described by the manufacturer as being 'mobile workstations', and suit that description by being physically on the larger side of the laptop spectrum, with screens ranging from 15' to 17' in size.
