To play 720p HD video, an iTunes LP or iTunes Extras, a 2.0GHz Intel Core 2 Duo or faster processor, 1GB of RAM and an Intel GMA X3000, ATI Radeon X1300, NVIDIA GeForce 6150 or better are required.To play standard-definition video from the iTunes Store, an Intel Pentium D or faster processor, 512MB of RAM and a DirectX 9.0–compatible video card are required.