The Intel graphics may be built-in and take what it needs (on-the-fly) from system memory.
My old Dell Inspiron has the low end Intel 4 Series Express. I’m running dual monitors.
- The internal monitor is 1366x768
- Connected external is a HP 25" at 1920x1080
It’s currently using 232MB of system memory, but it can swell to a maximum of 1325MB (out of the system’s 3GB, so it can want more than a third.)
I’m sure I’ve never taxed it to it’s fullest. And this is a cheap Walmart low-end “Suzie Housewife” model that my Aunt bought, and didn’t like. (She gave it to me in exchange for IT work on getting her a new Toshiba Satellite all fixed up with the doodads.)
I posted a screenshot of the nifty Intel Graphics Utility here: