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 DIRECTIVE (EU) 2022/2380 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 November 2022 (Part III) y Lenovo ThinkPad L520, Intel® Core™ i5, 2.5 GHz, 15.6", 1600 x 900 pixels, 4 GB, 320 GB Lenovo ThinkPad L520. Processor family: Intel® Core™ i5, Processor model: i5-2520M, Processor frequency: 2.5 GHz. Display diagonal: 15.6", HD type: HD+, Display resolution: 1600 x 900 pixels. Internal memory: 4 GB. Total storage capacity: 320 GB, Storage media: HDD, Optical drive type: DVD-RW. On-board graphics card model: Intel® HD Graphics 3000. Product color: Black. Weight: 5.73 lbs (2.6 kg) https://www.notebookcheck.net/Review-Lenovo-ThinkPad-L520-NWB53GE-Notebook.54102.0.html The L520 in front of us is already available from 570 euros . In this case there may not be a Windows operating system included, but there are business features such as a Docking Port, a non-glare LED TFT, and also several interfaces including eSATA, Disp... Good application performance, Very quiet and cool, Matte display, Very good Trackpoint and mouse, ThinkVantage software, Low power consumption, Docking Port, Helpful ThinkVantage Tools Unfavorable location of the ports, Partially unfavorable key layout, Weak viewing angle stability, Low contrasts, Bendable lid, Battery is a bit wobbly, No USB 3.0 One thing has become abundantly clear following our test: In case of a shortage of cash, there is room for a ThinkPad from the L-Series next to a cup of coffee. For under 700 Euros (under 600 Euros without an OS) there is a full-fledged business notebook...