The dual-mode video cannot be normalized on this model
David M., Amazon
11 March 2014
Summary: We have all Dell laptops at our business and always ordered the performance video chipset. For the previous models that had the Intel/NVidia combo video (E6420, E6430), we went into the BIOS under video and disabled Optimus.
Summary: I decided to splash out a bit on a powerful business laptop that could handle having a load of applications open at the same time without grinding to a halt. Whilst the machine is ok at multitasking, there are a few basics that sadly make me hate it. Firstly, the keyboard is terrible.