Note: All the following prices were obtained on-site by the editor at Zhongguancun counters, with business conditions provided by certified agents. The market situation changes constantly and the prices are for reference only. Adata and KINGMAX 1GB/333 have both dropped to a low price of 280 yuan, making them very suitable for old users to upgrade. In terms of DDR2, Kingston's 1GB/800 is only 5 yuan more expensive than 1GB/667, showing remarkable cost performance.