A cikin Janairu 2002, Intel ta saki Pentium 4s tare da sabon lambar lambar da ake kira "Northwood" a gudun 1.6 GHz, 1.8 GHz, 2 GHz da 2.2 GHz. Northwood (lambar samfurin 80532) ya fara haɗuwa da karuwar girman L2 cache daga 256 KB zuwa 512 KB (ƙara yawan adadin transistor daga 42 zuwa 55 miliyan) tare da sauyawa zuwa sabon tsarin ƙirar 130 nm. Yin mai sarrafawa daga ƙananan transistors yana nufin cewa zai iya gudana a mafi girman saurin agogo da kuma samar da ƙananan zafi. A cikin wannan watan an saki allon da ke amfani da 845 chipset tare da tallafin tallafi don DDR SAM wanda ya ba da sau biyu na bandwidth na PC133 SDRAM, kuma ya sauƙaƙe babban farashin amfani da RAM guda ɗaya mai suna "Northwood" don iyakar gudu tare da Pentium 4A 2.4 GHz. An saki Northwood (lambar samfurin 80532) a watan Afrilu 2002, kuma ya haɗu da haɓaka girman girman L2 cache daga 256 KB zuwa 512 KB (ƙara yawan adadin transistor daga 42 zuwa 55 miliyan) tare da sauyawa zuwa sabon tsarin ƙira na 130
gudu a mafi girma agogon gudu da kuma samar da kasa zafi