The main difference is that Art Prints are made of 100% cotton paper and Photographic Prints are made of archival quality Kodak Endura paper.
While Art Prints include a white border of 1 - 2 inches (2.5 - 5 cm) around the design, Photographic Prints have no border.
Also, Photographic Prints are offered in two different finishes: luster and metallic.