評(ping)價內存條的性能指標(biao)一共(gong)有(you)四(si)個:
(1) 存(cun)(cun)(cun)儲(chu)(chu)(chu)(chu)容(rong)量(liang):即一根內存(cun)(cun)(cun)條(tiao)可(ke)以容(rong)納的(de)二(er)進(jin)制(zhi)信(xin)息量(liang),如常用(yong)的(de)168線內存(cun)(cun)(cun)條(tiao)的(de)存(cun)(cun)(cun)儲(chu)(chu)(chu)(chu)容(rong)量(liang)一般多為(wei)(wei)32兆(zhao)、64兆(zhao)和(he)128兆(zhao)。而DDRII3普遍為(wei)(wei)1GB到(dao)8GB。 (2) 存(cun)(cun)(cun)取(qu)速(su)度(du)(存(cun)(cun)(cun)儲(chu)(chu)(chu)(chu)周期(qi)):即兩次(ci)獨立的(de)存(cun)(cun)(cun)取(qu)操(cao)作之(zhi)(zhi)間(jian)(jian)所(suo)需的(de)最(zui)短(duan)時(shi)間(jian)(jian),又稱為(wei)(wei)存(cun)(cun)(cun)儲(chu)(chu)(chu)(chu)周期(qi),半(ban)導體存(cun)(cun)(cun)儲(chu)(chu)(chu)(chu)器(qi)的(de)存(cun)(cun)(cun)取(qu)周期(qi)一般為(wei)(wei)60納秒至100納秒。 (3) 存(cun)(cun)(cun)儲(chu)(chu)(chu)(chu)器(qi)的(de)可(ke)靠(kao)(kao)性(xing)(xing):存(cun)(cun)(cun)儲(chu)(chu)(chu)(chu)器(qi)的(de)可(ke)靠(kao)(kao)性(xing)(xing)用(yong)平均故(gu)障間(jian)(jian)隔時(shi)間(jian)(jian)來衡量(liang),可(ke)以理(li)解為(wei)(wei)兩次(ci)故(gu)障之(zhi)(zhi)間(jian)(jian)的(de)平均時(shi)間(jian)(jian)間(jian)(jian)隔。 (4)性(xing)(xing)能(neng)價格比:性(xing)(xing)能(neng)主要(yao)(yao)包括存(cun)(cun)(cun)儲(chu)(chu)(chu)(chu)器(qi)容(rong)量(liang)、存(cun)(cun)(cun)儲(chu)(chu)(chu)(chu)周期(qi)和(he)可(ke)靠(kao)(kao)性(xing)(xing)三項(xiang)內容(rong),性(xing)(xing)能(neng)價格比是(shi)一個綜合(he)性(xing)(xing)指標(biao),對于不(bu)同的(de)存(cun)(cun)(cun)儲(chu)(chu)(chu)(chu)器(qi)有(you)不(bu)同的(de)要(yao)(yao)求(qiu)。