PSP compared well to 6th generation consoles such as the Xbox, PS2, and GameCube in terms of graphics and memory capacity. The console has undergone many improvements since its release, with PlayStation Vita being its first successor. PSP was released in Japan in 2004 and in March and September 2005 in North America and the PAL region. The Sony Computer Entertainment created the famous PlayStation Portable (PSP) handheld video game console which formed part of the 7th generation portable video game consoles.