Compare Lenovo ThinkPad T40p 2373 (2373G3U) PC Notebook to Lenovo ThinkPad T520 (4239L65) PC Notebook

With new Intel Centrino mobile technology on select models, the IBM ThinkPad T40 series notebooks are a new benchmark of computing performance, battery life and mobility. Work unplugged longer by combining the new ThinkPad T40 series High Capacity Battery (standard on select models) with the new optional ThinkPad Ultrabay Slim Li Polymer Battery for all-day computing (up to 9.5 hours).??The unique IBM Embedded Security Subsystem, an IBM ThinkVantage Technology, is available on select models. This hardware and software solution can help safeguard data with encryption to virtually lock private information. IBM Rapid Restore PC, another IBM ThinkVantage Technology, is preloaded - giving you the power of a one-button recover and restore solution to save time and frustration. The ThinkPad T40 series notebooks include the IBM UltraConnect Antenna built into the cover. This can improve signal reception whether you choose models with integrated IBM 11a/b Wi-Fi4 wireless, Cisco Aironet Wire... Less

Lenovo 4239L65 Notebook - ThinkPad T520 15.6" LED Core i5 i5 2520M 2.5GHz Black 4 GB RAM 320 GB HDD DVD Writer Bluetooth Webcam Genuine Windows 7 Professional DisplayPort - 4239L65 Brilliant business laptops. Rock-solid reliability. Blazing-fast performance. Clever manageability tools. We pack a lot of intelligent features into every ThinkPad laptop and tablet so you get more out. More productivity, more cost savings, more IT headache-busting. That's why a ThinkPad investment isn't just smart. Less