DigiTimes reports that AMD plans to announce new high-end desktop and mainstream platforms in May of 2010. Leo will consist of a 45nm Phenom II series or upcoming six-core Thuban CPU with either 890FX or 890GX (RD890) northbridge and SB850 southbridge chipsets and an ATI Radeon HD 5000 series graphics card, the sources noted. Dorado will comprise an Athlon II CPU, 880G (RS880P) northbridge and SB810 southbridge and HD 5000 series GPU.