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評(ping)價內存條的性能指(zhi)標一(yi)共有(you)四個：

(1) 存(cun)(cun)(cun)(cun)儲(chu)(chu)(chu)容(rong)量(liang)(liang)：即(ji)一(yi)根內(nei)(nei)存(cun)(cun)(cun)(cun)條(tiao)可(ke)以(yi)容(rong)納(na)的(de)(de)二進(jin)制信(xin)息量(liang)(liang)，如常用的(de)(de)168線(xian)內(nei)(nei)存(cun)(cun)(cun)(cun)條(tiao)的(de)(de)存(cun)(cun)(cun)(cun)儲(chu)(chu)(chu)容(rong)量(liang)(liang)一(yi)般(ban)多為(wei)(wei)(wei)(wei)32兆(zhao)、64兆(zhao)和128兆(zhao)。而DDRII3普遍為(wei)(wei)(wei)(wei)1GB到8GB。 (2) 存(cun)(cun)(cun)(cun)取速度（存(cun)(cun)(cun)(cun)儲(chu)(chu)(chu)周期(qi)）：即(ji)兩次獨立的(de)(de)存(cun)(cun)(cun)(cun)取操作之間(jian)(jian)(jian)所需的(de)(de)最短(duan)時間(jian)(jian)(jian)，又稱為(wei)(wei)(wei)(wei)存(cun)(cun)(cun)(cun)儲(chu)(chu)(chu)周期(qi)，半(ban)導體存(cun)(cun)(cun)(cun)儲(chu)(chu)(chu)器(qi)的(de)(de)存(cun)(cun)(cun)(cun)取周期(qi)一(yi)般(ban)為(wei)(wei)(wei)(wei)60納(na)秒至(zhi)100納(na)秒。 (3) 存(cun)(cun)(cun)(cun)儲(chu)(chu)(chu)器(qi)的(de)(de)可(ke)靠性(xing)(xing)：存(cun)(cun)(cun)(cun)儲(chu)(chu)(chu)器(qi)的(de)(de)可(ke)靠性(xing)(xing)用平均故障(zhang)間(jian)(jian)(jian)隔時間(jian)(jian)(jian)來衡量(liang)(liang)，可(ke)以(yi)理(li)解為(wei)(wei)(wei)(wei)兩次故障(zhang)之間(jian)(jian)(jian)的(de)(de)平均時間(jian)(jian)(jian)間(jian)(jian)(jian)隔。 (4)性(xing)(xing)能價(jia)格(ge)比(bi)：性(xing)(xing)能主要(yao)包括存(cun)(cun)(cun)(cun)儲(chu)(chu)(chu)器(qi)容(rong)量(liang)(liang)、存(cun)(cun)(cun)(cun)儲(chu)(chu)(chu)周期(qi)和可(ke)靠性(xing)(xing)三(san)項(xiang)內(nei)(nei)容(rong)，性(xing)(xing)能價(jia)格(ge)比(bi)是(shi)一(yi)個綜合性(xing)(xing)指標(biao)，對(dui)于不(bu)同的(de)(de)存(cun)(cun)(cun)(cun)儲(chu)(chu)(chu)器(qi)有不(bu)同的(de)(de)要(yao)求。