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 DIRECTIVE (EU) 2022/2380 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 November 2022 (Part III) y Lenovo Essential G555, AMD Athlon II, 2.1 GHz, 15.6", 1366 x 768 pixels, 3 GB, 160 GB Lenovo Essential G555. Form factor: Clamshell. Processor family: AMD Athlon II, Processor model: M320, Processor frequency: 2.1 GHz. Display diagonal: 15.6", Display resolution: 1366 x 768 pixels. Internal memory: 3 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 160 GB, Storage media: HDD, Optical drive type: DVD Super Multi DL. On-board graphics card model: AMD Radeon HD 4200. Operating system installed: Windows 7 Home Premium. Product color: Black. Weight: 5.95 lbs (2.7 kg)