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Intel Pentium 4 Extreme Edition 3.2GHz
28.11.2003.
    « Prev  : Stranica 1 od 6 :  Next »      By ::  Ozren Žagmešter 
- Uvod -

Nakon što smo detaljno isprobali AMD Athlon 64 procesore, došlo je vrijeme da isprobamo i Intelov odgovor - procesor P4 Extreme Edition 3.2GHz. Ovaj procesor posjetio je Hrvatsku na vrlo kratko vrijeme pa tako nismo imali puno vremena da ga isprobamo. Situacija oko procesora bila je vrlo kaotična, no trudom Status Grupe (PR agencije koja hendla Intel u Hrvatskoj) te dobrom voljom i sustreljivošću dobrih ljudi u BUG-u, sve je na kraju ispalo OK. Nažalost, zbog nedostatka vremena nismo uspjeli isprobati overclocking potencijal ovog procesora (te još neke stvari koje su nas zanimale). Intel je obećao da će se procesor u prosincu ponovo vratiti u Hrvatsku pa se nadamo da ćemo tada moći upotpuniti naš test.

Logač

Pentium 4 Extreme Edition je službeno predstavljen sredinom studenog, no o njemu se moglo sve saznati i mnogo ranije. Naime, Intel je primjerke procesora P4EE podijelio najpoznatijim svjetskim hardware stranicama na IDF-u te su prvi testovi ovog procesora osvanuli u isto vrijeme kada je lansirana i Athlon 64 linija. Ovakav tajming nije bio slučajan - Intel je napravio sve u svojoj moći da AMD-u što više zagorča život. Neki će reći da je to bio "niski" potez no, na to se ne treba obazirati jer se radi o normalnoj borbi dvaju konkurenata na otvorenom tržištu. Ovakav tajming nam govori i da je Intel shvatio Athlon 64 liniju itekako ozbiljno te da je osjetio da zbog kašnjenja Prescott P4 procesora nema pravog takmaca za procesore Athlon 64 FX. Prescott jezgra čini se da pati od pregrijavanja što i nije neko iznaneđenje jer vrijeme kada su se AMD procesori smatrali "pekačima jaja" je prošlo - trenutni P4 procesori se itekako griju (primjer - P4C 2.4C overclockan na 3.3GHz-a @ 1.54V s vodenim hlađenjem bez problema dostigne 63C pod punim opterećenjem).

P4EE je prvi Intel procesor za kojeg tvrtka tvrdi da je namijenjen gamerima i power-userima. Do sada je Intel bio orijentiran prvenstveno na korporativno i OEM tržište. Razloge za ovakav preokret opet možemo naći u konkurentnom Athlonu 64 FX - ovaj procesor AMD je isto reklamirao kao idealnim za entuzijaste i gamere. No, što je stvarno P4EE?

P4EE se prema službenim specifikacijama od "stare" Northwood jezgre razlikuje samo po dodatnoj količini cache memorije. Na procesor je dodano 2MB L3 cache memorije koja je koncipirana kao dodatak postojećem L2 cacheu od 512KB. Kako arhitektura cache memorije na P4 procesorima nije ekskluzivnog tipa, a obje razine cache memorije imaju istu latenciju, realna količina cache memorije iznosi 2MB, a ne 2.5MB kako bi se u prvi tren pomislilo. Zbog veće cache memorije narastao je i broj tranzistora (i to na ogromnih 178 milijuna) i broj kondezatora na poleđini chipa (s 12 na 30). Veliko povećanje broja tranzistora rezultiralo je i većom površinom jezgre - ona je sad 237mm2 (Northwood jezgra je 146mm2). Nažalost, ovakvo povećanje donosi i veliku cijenu procesora - oko USD930!

Oni koji prate i serverski segment procesora, lako će prepoznati veliku sličnost P4 Extreme Edition procesora s Xeon MP modelima (Gallatin jezgra). Defakto P4EE je hibrid Northwood i Gallatin jezgri - takt sabirnice (800MHz) i socket (Socket478) preuzet je s Northwood jezgre, a konfiguracija cache memorije s Gallatin jezgre. Vrlo praktično rješenje koje sigurno, što se razvoja tiče, nije koštalo previše. Nama se najviše sviđa to što je zadržan Socket478 format te korisnik kupnjom P4EE procesora nije primoran promijeniti i matičnu ploču. Uz to, chipseti za Socket478 procesore, prvenstveno Intel i875P i i865PE, su stvarno odlični. Po nama je ovo najjača strana P4EE procesora - dok se kupnjom Athlon 64 FX procesora obavezujete na kupnju nove matične ploče, a bome i memorije (registered DDR400), kod P4EE procesora takvih dodatnih investicija/problema nema. Uz to, da bi vam P4EE radio kako treba nije potrebna ni nova verzija BIOS-a za vašu matičnu ploču. Pametan potez Mr. Intel!

No dosta priče, vrijeme je da vidimo što to P4EE donosi u vidu performansi!



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