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>在您最需要的时候，为您提供更高的性能</b> 当低于规格限制操作时，Intel® Turbo Boost Technology 2.0 可以通过提高操作频率加速处理器和图形性能。最大频率取决于工作负荷、硬件、软件和整体系统配置。 2.0 Does not contain "conflict minerals": tantalum, tin, tungsten, and gold. Y 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 i7-4xxx DIRECTIVE (EU) 2022/2380 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 November 2022 (Part III) y 戴尔 Latitude E6540, 英特尔®酷睿™ i3, 2.7 GHz, 39.6 cm (15.6"), 1920 x 1080 像素, 8 GB, 500 GB 戴尔 Latitude E6540. 产品类型: 笔记本, 外型: 翻盖式. 处理器系列: 英特尔®酷睿™ i3, 处理器: i7-4800MQ, 处理器频率: 2.7 GHz. 显示器尺寸（对角长）: 39.6 cm (15.6"), HD 类型: Full HD, 显示器分辨率: 1920 x 1080 像素. 内置存储器: 8 GB, 内存类型: DDR3-SDRAM. 总存储容量: 500 GB, 儲存裝置: 混合式硬盘, 光驱类型: DVD Super Multi光碟. 已预装操作系统: Windows 7 Professional. 产品色彩: 黑色, 银色 http://digi.ifeng.com/nbook/evaluation/detail_2013_08/31/29183351_0.shtml 戴尔Latitude系列是DELL面向企业用户推出的商用笔记本，它随着每年新一代硬件平台的更新而升级。但死近几年来，这个系列的外观升级似乎停滞了，去年和前年的Latitude系列笔记本外观基本一致，没有太大变化，不过进入2013年下半年以后，携新平台发布的戴尔Latitude硬件外观都升级了，我们测试的戴尔Latitude E6540其中之一。戴尔Latitude E6540是一款15寸传统商用笔记本，为了提供更强的抗冲击性，它配有镁合金内部框架，所以整机厚度与重量和超极本存在较大的差距，移动便携性受到一...