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 HP MP9 G2, 3.2 GHz, 3 MB, 8 GT/s, 4 GB, DDR4-SDRAM, 32 GB HP MP9 G2. Processor frequency: 3.2 GHz, Processor cache: 3 MB, System bus rate: 8 GT/s. Internal memory: 4 GB, Internal memory type: DDR4-SDRAM, Maximum internal memory: 32 GB. Total storage capacity: 500 GB, Storage media: HDD, HDD capacity: 500 GB. Graphics card manufacturer: Intel, Maximum graphics card memory: 1700 MB. Audio system: DTS Studio Sound