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>當您最需要時更高的效能</b> 當運作低於規格限制時，Intel®渦輪加速技術2.0可藉由提高操作頻率來加快處理器及圖形晶片效能的速度。最大頻率是依據工作負載、硬體、軟體及整體系統組態而改變。 2.0 4th Generation Intel® Core™ processors are based on Intel® microarchitecture formerly known as Haswell, manufactured on 22 nm process technology with 3D tri-gate transistors. This platform provides excellent CPU, graphics, media performance, flexibility, and enhanced security over the 3rd generation Intel® Core™ processors, making it ideal for a broad range of intelligent systems. Intel Core i5-4xxx DIRECTIVE (EU) 2022/2380 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 November 2022 (Part III) y 戴尔 Latitude E6540, Intel® Core™ i5, 2.7 GHz, 39.6 cm (15.6"), 1920 x 1080 像素, 8 GB, 500 GB 戴尔 Latitude E6540. 產品類型: 筆記型電腦, 外型: 翻蓋式. 處理器系列: Intel® Core™ i5, 處理器類型: i5-4310M, 處理器頻率: 2.7 GHz. 顯示器尺寸(對角長): 39.6 cm (15.6"), HD 類型: Full HD 高解析度畫質, 顯示器解析度: 1920 x 1080 像素. 內部記憶體: 8 GB, 內部記憶體類型: DDR3L-SDRAM. 總儲存空間: 500 GB, 媒體儲存功能: HDD 硬式磁碟機. 行動通訊系統: 3G. 提供作業系統: Windows 7 Professional. 產品色彩: 黑色, 銀