It's common knowledge for anyone who has used a PC in the past two decades.
If you've worked in an office of any kind that uses Dell desktops, those systems at minimum supported two displays. The Intel chip itself supported at least three. MacBook Pros of that era also used Intel chips. Here's a $42 Celeron launched in 2013 that supports three displays.
Intel® Celeron® Processor G1610 (2M Cache, 2.60 GHz) - Product Specifications | Intel
Intel® Celeron® Processor G1610 (2M Cache, 2.60 GHz) quick reference with specifications, features, and technologies.ark.intel.com
Transistor count? Ivy Bridge is 1.4B. M3 is 25B.
Well… it is also common knowledge that the resolution and the refresh rate supported by a Celeron processor are a fraction of those supported by a modern processor.