Tom's Interactive Mobile CPU Charts focus on popular mobile processors, which are used in laptops and notebooks because of their increased energy efficiency. We tested nine AMD and Intel processors tested across 15 different benchmarks using Windows XP. Core 2 Duo is the dominating processor in the notebook/laptop space and AMD's Turion 64 X2 has become a budget option. However, all of these dual core processors deliver sufficient performance for mainstream applications. The Price/Performance Index relates US$ costs to the overall performance.