Graphic design boosts brand awareness beyond the websites. Tasks include iconography, photography, graphics for social media as well as print collateral such as business cards, flyers, posters, presentation graphics, and templates for documentation.
The ubiquitous nature of the web provides key guidelines for designing UI, but graphic design can vary in layout in design so much more. Usually a layout and some text content is provided and that is all. The freedom within is exciting and somewhat daunting. I actually enjoy restrictions in graphic design such as finding a way to add QR codes to business cards, creating posters or buttons at the correct size text so that they are readable in their respective locations. And once again, branding is the inspiration and foundation for the overall look and feel.