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AMD Phenom II X4 810 & X3 720 Black Edition - AM3 je stigao
09.02.2009.
    « Prev  : Stranica 1 od 5 :  Next »      By ::  Krešimir Matanović 
- Opis -

O Shangai arhitekturi, na kojoj počivaju ovi procesori, ste na PC Ekspertu mogli čitati još od njenog Berlinskog predstavljanja. Nakon toga smo Vam na dan samog predstavljanja prvih Phenom II procesora donijeli i prvi test istih u kojem smo vidjeli kako su novi procesori i dalje slabiji od Intelovih najmoćnijih procesora, no kako su ipak smanjili ogroman jaz u performansama. Uz to donijeli su i manju potrošnju električne energije te smanjeno zagrijavanje. Dodatno povećanje performansi bi trebalo donijeti korištenje DDR3 memorije, čiju podršku donose upravo danas testirani procesori. AMD danas, kao što smo rekli, predstavlja pet novih procesora koji podržavaju AM3 socket, odnosno imaju 938 pinova:

• AMD Phenom™ II X4 910 - (2.6GHz)
• AMD Phenom™ II X4 810 - (2.6GHz)
• AMD Phenom™ II X4 805 - (2.5GHz)
• AMD Phenom™ II X3 720 Black Edition - (2.8GHz)
• AMD Phenom™ II X3 710 - (2.6GHz)

Kao što vidimo riječ je o tri četverojezgrena i dva trojezgrena modela koji rade na taktovima od 2.5GHz pa do 2.8GHz. Najbrži, X3 720 ujedno je i pripadnik dobro nam poznate "Black Edition" serije koja donosi otključan množitelj, a upravo taj procesor nam je AMD poslao da se njime poigramo. Uz njega, stigao je i pripadnik X4 8 serije, koja ima smanjenu količinu priručne memorije. Koliko manjak cachea utječe na same performanse provjeriti ćemo u testovima. Svakako treba napomenuti kako ovi novi procesori ne podržavaju samo AM3 socket, već ih je moguće koristiti i na starom AM2+ socketu. Ovo je postignuto činjenicom tako što ovi procesori imaju dva memorijska kontrolera. Zbog smanjenog broja utora u AM3 socketu (938), dosadašnje AM2+ procesore neće biti moguće koristiti na njemu, što je i logično jer nemaju DDR3 memorijski kontroler.

Kao što Već i ptice na grani znaju ovi procesori su napravljeni u 45nm (DSL Silicon on Insulator tehnologija) proizvodnom procesu u AMD-ovoj Dresdenskoj tvornici. Imaju 758 milijuna tranzistora te površinu jezgre od 258mm2. Radni napon im je na oko 1.3V, a Quiet`n`Cool tehnologija je unaprijeđena do treće razine. Na toj razini, Phenomi II imaju četiri p-stanja i mogu minimalno raditi na 800MHz. Time se dodatno osigurava smanjenje već ionako smanjene potrošnje električne energije u odnosu na prethodnika. Ono što je ipak najbitnije za danas predstavljene modele je memorijski kontroler, ili bolje rečeno kontroleri. Ovi procesori ih imaju dva - jedan za DDR2 i drugi za DDR3 memoriju. Kao i do sada na AM2+ pločama, moguće je koristiti 1066MHz DDR2 memoriju i to maksimalno u 4 slota. Novost je podrška za DDR3 (na AM3 pločama), koja može biti brzine do 1333MHz a moguće je koristiti do 4 utora. Oba kontrolera podržavaju dvokanalni rad (128 bita) identičnih modula, ali i tzv. "unganged" mod u kojem je moguće koristiti dva različita memorijska modula.

Kao što na slici možete primjetiti novom procesoru (lijevom) "fale" dva pina te ih on sada broji 938. Okrećemo se modelima koji su nam pristigli na test i odmah primjećujemo kako X4 8 serija ima 4MB dijeljenje L3 priručne memorije što je za 2MB manje nego na punokrvnim Denebima. Ovo smanjenje će svakako imati utjecaja na potrošnju električne energije, a koliko gubimo u performansama tek nam ostaje za vidjeti. Ostatak arhitekture "cache" memorije je identičan na svim Phenomima, tj. imaju 64K + 64K L1 i 512KB L2 po jezgri.

X3 720 Black Edition ima svih 6MB L3 priručne memorije te radi na 2.8GHz. Ovo bi mu trebalo osigurati sasvim pristojne performanse u svim aplikacijama koje ne koriste sve četiri jezgre, tj. u većini igara. S obzirom da ima otključan množitelj biti će se vrlo lako poigrati i sa overclockingom te otkriti njegove granice. Kao što smo vidjeli iz testa X4 920 i 940 procesora, tek podizanjem frekvencije Phenomi II pružju svoj pravi potencijal. Procesor iz serije 8 koji smo mi dobili na test je brži od dva za sada predstavljena pripadnika i radi na brzini od 2.6GHz. Ima 4MB L3 priručne memorije te kao što vidimo sa slika radi na nešto nižem naponu od X3 modela. Oba procesora rade na brzini HT Linka od 2000MHz. Toliko o teoriji, i vrijeme je da krenemo na testove.



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