Two GPUs. Schenker's 17-inch Workstation is available with two Nvidia graphics cards in an SLI configuration. Read the review to find out whether the quality and the performance of the W724 can keep up with other dual-GPU laptops like the Aorus X7 Pro or the MSI GT80.
http://www.notebookcheck.net/Schenker-W724-Clevo-P370SM-A-Notebook-Review.144448.0.html