uyini umehluko phakathi kwe-ddr3 ne-ddr4?

1. Ukucaciswa okuhlukile

Imvamisa yokuqala yenkumbulo ye-DDR3 ingu-800MHz kuphela, futhi imvamisa ephezulu ingafinyelela ku-2133MHz. Imvamisa yokuqala yenkumbulo ye-DDR4 ingu-2133MHz, futhi imvamisa ephezulu kakhulu ingafinyelela ku-3000MHz. Uma kuqhathaniswa nenkumbulo ye-DDR3, ukusebenza kwenkumbulo ephezulu ye-DDR4 kuthuthukiswa kakhulu kuzo zonke izici. Iphinikhodi ngayinye yememori ye-DDR4 inganikeza umkhawulokudonsa ongu-2Gbps, ngakho-ke i-DDR4-3200 ingu-51.2GB/s, ephakeme kunaleyo ye-DDR3-1866. Umkhawulokudonsa ukhuphuke ngo-70%;

2. Ukubukeka okuhlukile

Njengenguqulo ethuthukisiwe ye-DDR3, i-DDR4 ibe nezinguquko ezithile ekubukekeni. Iminwe yegolide yenkumbulo ye-DDR4 isigobile, okusho ukuthi i-DDR4 ayisahambisani ne-DDR3. Uma ufuna ukufaka esikhundleni sememori ye-DDR4, udinga ukufaka esikhundleni sebhodi lomama ngeplatifomu entsha esekela inkumbulo ye-DDR4;

3. Umthamo wenkumbulo ohlukile

Mayelana nokusebenza kwenkumbulo, umthamo omkhulu we-DDR3 owodwa ungafinyelela ku-64GB, kodwa kuphela i-16GB ne-32GB etholakala emakethe. Umthamo owodwa omkhulu we-DDR4 ngu-128GB, futhi umthamo omkhulu usho ukuthi i-DDR4 inganikeza ukusekelwa kwezinye izinhlelo zokusebenza. Ukuthatha inkumbulo ye-DDR3-1600 njengebhentshimakhi yereferensi, inkumbulo ye-DDR4 inokuthuthukiswa kokusebenza okungenani okungu-147%, futhi umkhawulo omkhulu kangaka ungabonisa umehluko osobala;

4. Ukusetshenziswa kwamandla okuhlukile

Ngaphansi kwezimo ezijwayelekile, i-voltage yokusebenza yememori ye-DDR3 yi-1.5V, edla amandla amaningi, futhi imodyuli yememori ijwayele ukushisa nokunciphisa imvamisa, okuthinta ukusebenza. I-voltage esebenzayo yenkumbulo ye-DDR4 iningi layo lingu-1.2V noma ngaphansi. Ukuncipha kokusetshenziswa kwamandla kuletha ukusetshenziswa kwamandla okuncane nokushisa okuncane, okuthuthukisa ukuzinza kwemojuli yememori, futhi ngokuyisisekelo akubangeli ukwehla okubangelwa ukushisa. i-frequency phenomenon;