ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR <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 DisplayPort 1 Hard Drive HDD HP Compaq Elite 8200 USFF, 2,7 GHz, Intel® Core™ i5, i5-2500S, 4 GB, 320 GB, Windows 7 Professional HP Compaq Elite 8200 USFF. Processor frequency: 2,7 GHz, Processor family: Intel® Core™ i5, Processor model: i5-2500S. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1333 MHz. Total storage capacity: 320 GB, Storage media: HDD. On-board graphics card model: Intel® HD Graphics 2000, Discrete graphics card model: AMD Radeon HD 5450. Operating system installed: Windows 7 Professional, Operating system architecture: 64-bit. Power supply: 135 W. Chassis type: USFF. Product type: PC