HP Pavilion HDX18-1020US 18.4-Inch Laptop (2.26 GHz Intel Core 2 Duo P8400 Processor, 4 GB RAM, 500 GB Hard Drive, Blu-ray Drive, Vista Premium) HP Pavilion X18-1020US 18.4 Inch Laptop. Expanding on the sophisticated elegance of the current line, the new X18-1020US is defined by fluid, modern lines and metalized finishes with surprising innovations inside and out. 18.4-inch Diagonal High Definition HP Ultra Brightview Infinity Display, 1920x1080 reolution 2.26 GHz Intel Core 2 Duo Processor P8400 with 3 MB L2 Cache 4096MB DDR2 System Memory (2 Dimm), 500GB (5400RPM) Hard Drive (SATA), NVIDIA GeForce 9600M GT with up to 2302MB Total Available Graphics Memory with 512MB dedicated Blu-Ray ROM with SuperMulti DVDR/RW Double Layer, Intel WiFi Link 5100AGN and Bluetooth