HP Argento 17.3" 4GB 640GB Pavilion dv7-4157cl Laptop HP Pavilion dv7 Entertainment Notebook 2.90GHz argento 17.3 Inch diagonal High-Definition+ HP BrightView LED Display (1600 x 900), VISION Technology from AMD with AMD Phenom II Dual-Core Mobile Processor N640 2.9Ghz 4GB DDR3 System Memory 640GB (5400RPM) Hard Drive LightScribe Blu-ray Beats Audio and HP Triple Bass Reflex Subwoofer