評價內(nei)存條的性能指標一(yi)共有四個:
(1) 存(cun)(cun)(cun)(cun)儲(chu)容(rong)量:即(ji)一(yi)根(gen)內存(cun)(cun)(cun)(cun)條可(ke)以容(rong)納(na)(na)的(de)二進制信息量,如常用的(de)168線內存(cun)(cun)(cun)(cun)條的(de)存(cun)(cun)(cun)(cun)儲(chu)容(rong)量一(yi)般多為(wei)(wei)32兆(zhao)(zhao)、64兆(zhao)(zhao)和128兆(zhao)(zhao)。而DDRII3普遍為(wei)(wei)1GB到(dao)8GB。 (2) 存(cun)(cun)(cun)(cun)取速度(存(cun)(cun)(cun)(cun)儲(chu)周(zhou)(zhou)期(qi)):即(ji)兩次(ci)獨立的(de)存(cun)(cun)(cun)(cun)取操作之間(jian)(jian)(jian)所需的(de)最短時(shi)(shi)間(jian)(jian)(jian),又稱為(wei)(wei)存(cun)(cun)(cun)(cun)儲(chu)周(zhou)(zhou)期(qi),半(ban)導體存(cun)(cun)(cun)(cun)儲(chu)器的(de)存(cun)(cun)(cun)(cun)取周(zhou)(zhou)期(qi)一(yi)般為(wei)(wei)60納(na)(na)秒至100納(na)(na)秒。 (3) 存(cun)(cun)(cun)(cun)儲(chu)器的(de)可(ke)靠性(xing)(xing):存(cun)(cun)(cun)(cun)儲(chu)器的(de)可(ke)靠性(xing)(xing)用平均故(gu)障間(jian)(jian)(jian)隔(ge)時(shi)(shi)間(jian)(jian)(jian)來衡量,可(ke)以理(li)解為(wei)(wei)兩次(ci)故(gu)障之間(jian)(jian)(jian)的(de)平均時(shi)(shi)間(jian)(jian)(jian)間(jian)(jian)(jian)隔(ge)。 (4)性(xing)(xing)能(neng)價(jia)格(ge)比(bi):性(xing)(xing)能(neng)主要包括存(cun)(cun)(cun)(cun)儲(chu)器容(rong)量、存(cun)(cun)(cun)(cun)儲(chu)周(zhou)(zhou)期(qi)和可(ke)靠性(xing)(xing)三項內容(rong),性(xing)(xing)能(neng)價(jia)格(ge)比(bi)是一(yi)個綜合性(xing)(xing)指(zhi)標,對于不同(tong)的(de)存(cun)(cun)(cun)(cun)儲(chu)器有不同(tong)的(de)要求。