The Dell Inspiron 6400 Laptop is powered by 1.60 GHz Intel Pentium Core Duo Processor T2050 and it features 2-MB Cache, 667MHz FSB, Intel Mobile 945PM Chipset mainboard, 512-MB DDR2 SDRAM (upgrdable to 1-GB maximum in 2 slots), 80-GB 5400rpm SATA hard disk drive and a standard 24X DVD/CD-RW Combo Drive.The Dell Inspiron 6400 Laptop sports 15.4-inch (39.1 cm) Widescreen TFT Active Matrix WXGA display powered by ATI Mobility Radeon X1400 Graphics chipset with Hypermemory and shared memory which is capable of upto 1280 x 800 pixels screen resolution.