Compaq 620 Notebook PC Quick Specs HP Compaq 620 - Intel Core 2 Duo T6570 (2.1Ghz, 800 Mhz, 2MB L2)/Mobile Intel GM45 Chipset/ Widescreen 15.6-inch diagonal LED-backlit HD display with 16:9 aspect ratio with BrighView (1366 x 768 resolution)/ DVD+/-RW SuperMulti DL LightScribe Drive/ 2GB 1066Mhz DDR3 RAM (Max 8GB, 2 Slots)/ 320GB 7200rpm HDD with DriveGuard/ Mobile Intel Graphics Media Accelerator 4500MHD / Integrated 802.11 b/g/n & Bluetooth/Ethernet (10/100 NIC) Fast Charge Technology/Starting weight 2.27 kg/Secure Digital and Express Card slot/ 1 yr carry-in warranty/ Free DOS/ Webcam 2MP   Quick Specs HP Compaq 621 - Intel Core 2 Duo T6570 (2.1Ghz, 800 Mhz, 2MB L2)/Mobile Intel GM45 Chipset/ Widescreen 15.6-inch diagonal LED-backlit HD display with 16:9 aspect ratio with BrighView (1366 x 768 resolution)/ DVD+/-RW SuperMulti DL LightScribe Drive/ 2GB 1066Mhz DDR3 RAM (Max 8GB, 2 Slots)/ 320GB 7200rpm HDD with DriveGuard/ Mobile Intel Graphics Media Accelerator 4500MHD / Integrated 802.11 b/g/n & Bluetooth/Ethernet (10/100 NIC) Fast Charge Technology/Starting weight 2.27 kg/Secure Digital and Express Card slot/ 1 yr carry-in warranty/ Free DOS/ Webcam 2MP / 512MB Dedicated Graphics   Quick Specs HP Compaq 620 - Intel Core 2 Duo T6570 (2.1Ghz, 800 Mhz, 2MB L2)/Mobile Intel GM45 Chipset/ Widescreen 15.6-inch diagonal LED-backlit HD display with 16:9 aspect ratio with BrighView (1366 x 768 resolution)/ DVD+/-RW SuperMulti DL LightScribe Drive/ 2GB 1066Mhz DDR3 RAM (Max 8GB, 2 Slots)/ 320GB 7200rpm HDD with DriveGuard/ Mobile Intel Graphics Media Accelerator 4500MHD / Integrated 802.11 b/g/n & Bluetooth/Ethernet (10/100 NIC) Fast Charge Technology/Starting weight 2.27 kg/Secure Digital and Express Card slot/ 1 yr carry-in warranty/ Windows 7 Basic / Webcam 2MP