DDR2比DDR3到底差多少?CPU和显卡都够好了,屏也不错 http://www.bhphotovideo.com/bnh/controller/home?O=productlist&sku=654927&is=REG&Q=&A=details
* 2.8GHz Intel Core 2 Duo Processor T9600
* 4GB (2x2GB) RAM
* 320GB 7200rpm Hard Drive
* SuperMulti DVD Burner
* ATI Mobility Radeon HD 4650 Graphics
* 14" LED Backlit Widescreen Display
* Integrated Camera and Microphone
* Bluetooth 2.1+EDR
* 802.11b/g/n Wi-Fi
* Windows 7 Home Premium, 5.5 lb