<b>Higher Performance When You Need It Most</b> Intel® Turbo Boost Technology 2.01 accelerates processor and graphics performance by increasing the operating frequency when operating below specification limits. The maximum frequency varies depending on workload, hardware, software, and overall system configuration. 2.0 Legacy Intel® Core™ Processor Intel Core i5-2xxx Lenovo ThinkCentre Edge 91, 3.3 GHz, Intel® Core™ i5, 4 GB, 500 GB, DVD-RW, Windows 7 Professional Lenovo ThinkCentre Edge 91. Processor frequency: 3.3 GHz, Processor family: Intel® Core™ i5, Processor model: i5-2500. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1333 MHz. Total storage capacity: 500 GB, Storage media: HDD, Optical drive type: DVD-RW. On-board graphics card model: Intel® HD Graphics 2000. Operating system installed: Windows 7 Professional, Operating system architecture: 32-bit. Power supply: 240 W. Chassis type: SFF. Product type: PC