HP TouchSmart 300-1020 Desktop PC comes with AMD Athlon II 235e Dual-Core Processor (2.7 GHz, 2MB L2 Cache, 4000 MHz System Bus); 4GB PC3-8500 DDR3 SDRAM memory; 500GB 7200RPM Serial ATA hard drive; Slot-load SuperMulti DVD Burner; Touch-enabled 20" diagonal HD LCD Display with Brightview technology; ATI

HP TouchSmart 600-1050 23-Inch Desktop PC offers Intel Core2 Duo Processor T6500 (2.1 GHZ, 2 MB L2 Cache, 800 MHz System Bus); 4GB PC3-8500 DDR3 SDRAM memory (2x2048); 750GB 7200RPM Serial ATA hard drive; Slot-load SuperMulti DVD Burner with LightScribe Technology; Touch-enabled 23" diagonal Full HD 1080p