評價內(nei)存條的性(xing)能指標一共有四個：
(1) 存(cun)(cun)(cun)(cun)(cun)儲(chu)容(rong)(rong)(rong)量(liang)：即(ji)一根內存(cun)(cun)(cun)(cun)(cun)條可以容(rong)(rong)(rong)納的(de)二(er)進(jin)制信息量(liang)，如常用(yong)(yong)的(de)168線(xian)內存(cun)(cun)(cun)(cun)(cun)條的(de)存(cun)(cun)(cun)(cun)(cun)儲(chu)容(rong)(rong)(rong)量(liang)一般多為(wei)32兆、64兆和128兆。而DDRII3普遍為(wei)1GB到(dao)8GB。 (2) 存(cun)(cun)(cun)(cun)(cun)取速度(du)（存(cun)(cun)(cun)(cun)(cun)儲(chu)周(zhou)期(qi)）：即(ji)兩(liang)(liang)次(ci)獨(du)立(li)的(de)存(cun)(cun)(cun)(cun)(cun)取操作之間(jian)(jian)所需的(de)最短時(shi)間(jian)(jian)，又稱為(wei)存(cun)(cun)(cun)(cun)(cun)儲(chu)周(zhou)期(qi)，半導體存(cun)(cun)(cun)(cun)(cun)儲(chu)器(qi)(qi)的(de)存(cun)(cun)(cun)(cun)(cun)取周(zhou)期(qi)一般為(wei)60納秒至100納秒。 (3) 存(cun)(cun)(cun)(cun)(cun)儲(chu)器(qi)(qi)的(de)可靠性(xing)：存(cun)(cun)(cun)(cun)(cun)儲(chu)器(qi)(qi)的(de)可靠性(xing)用(yong)(yong)平均(jun)故(gu)障間(jian)(jian)隔(ge)(ge)時(shi)間(jian)(jian)來衡量(liang)，可以理(li)解為(wei)兩(liang)(liang)次(ci)故(gu)障之間(jian)(jian)的(de)平均(jun)時(shi)間(jian)(jian)間(jian)(jian)隔(ge)(ge)。 (4)性(xing)能(neng)價格(ge)比：性(xing)能(neng)主要(yao)包(bao)括存(cun)(cun)(cun)(cun)(cun)儲(chu)器(qi)(qi)容(rong)(rong)(rong)量(liang)、存(cun)(cun)(cun)(cun)(cun)儲(chu)周(zhou)期(qi)和可靠性(xing)三項內容(rong)(rong)(rong)，性(xing)能(neng)價格(ge)比是一個綜合性(xing)指標，對于不同的(de)存(cun)(cun)(cun)(cun)(cun)儲(chu)器(qi)(qi)有不同的(de)要(yao)求(qiu)。
