My Mid 2014, 15" Macbook Pro has both Intel and Nvidia.

Chipset Model: Intel Iris Pro

Chipset Model: NVIDIA GeForce GT 750M

This Macbook pro was a free upgrade from Apple after I'd had 3 mainboard replacements because they'd had faulty GPU's on my 2011 MBP ( see https://web.archive.org/web/20170119031155/https://people.ca... for background) - Basically after I found out what was going on I took my 'repaired' machine home and stress tested it until it failed. After the very quick repeated failures Apple decided to replace my machine completely.