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 Does not contain "conflict minerals": tantalum, tin, tungsten, and gold. Y Legacy Intel® Core™ Processor Intel Core i5-3xxx 联想 ThinkStation E31, 3.3 GHz, Intel® Core™ i5, i5-3550, 4 GB, DVD-RW, Windows 7 Professional 联想 ThinkStation E31. 處理器頻率: 3.3 GHz, 處理器系列: Intel® Core™ i5, 處理器類型: i5-3550. 內部記憶體: 4 GB, 內部記憶體類型: DDR3-SDRAM. 光碟機: DVD-RW. 主機板內建顯示卡型號: Intel® HD Graphics 2500. 提供作業系統: Windows 7 Professional, 作業系統結構: 64位元. 電源供應: 280 W. 機箱外型規格: Minitower. 產品類型: 工作站. 重量: 11.2 kg. 產品色彩: 黑色