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AMD Sempron 2600+
22.04.2005.
    « Prev  : Stranica 1 od 5 :  Next »      By ::  Denis Arunović 
- Uvod -

Kao i uvijek, krenut ćemo sa malo teorije. Socket 754 Semproni predstavljaju AMD-ovu liniju low-end procesora. Uz njih postoje još i Socket 462 verzije Semprona, ali te procesore uz Socket 754 Semprone veže samo ime. Naime Semproni za Socket 462 su ništa drugo doli Athloni XP bazirani na jezgri Thoroughbred B sa drugim imenom i prerađenim oznakama modela, dok su Socket 754 Semproni derivati Athlona 64. Ti se novi Semproni od svoje starije braće razlikuju prema tome što ne podržavaju tehnologiju AMD64 (dakle nemaju 64-bitne instrukcije), imaju manje L2 cachea (256 ili 128 kB, zavisno o modelu), a neki modeli ne podržavaju niti tehnologiju Cool'n'Quiet (2600+ i 2800+). Ono što Semprone od arhitekture K8 i dalje krasi jest integrirani memorijski kontroler te podrška za NX bit.

Novi Semproni bazirani su na derivatu jezgre Winchester - jezgri Palermo

Prilikom inicijalnog predstavljanja Semprona, AMD je na tržište "bacio" samo jedan Socket 754 model ove low-end linije procesora. Bila je riječ o modelu 3100+ sa 256 kB cachea i taktom od 1,8 GHz koji je bio baziran na derivatu tada aktualne jezgre Newcastle. Novi Semproni, kao što se moglo i pretpostaviti, imaju i novu jezgru. Riječ je o jezgri Palermo, skresanoj varijantni jezgre Winchester koju poznajemo sa Athlona 64 Socket 939. S obzirom na to, nove verzije Semprona su izrađene 90-nanometarskim proizvodnim procesom, rade na naponu od 1,4 volta, a u odnosu na svoje prethodnike (zapravo prethodnika) nude niže zagrijavanje. Naravno, budući da se radi o low-end procesorima, zagrijavanje Semprona je ionako prilično nisko - tek 62 W.

Popis modela
Model
Takt
L2 cache
3100+
1,8 GHz
256 kB
3000+
1,8 GHz
128 kB
2800+
1,6 GHz
256 kB
2600+
1,6 GHz
128 kB

AMD je sa novom jezgrom predstavio ukupno četiri modela Semprona koji se razlikuju prema taktu, količini L2 cachea, ali i podršci za tehnologiju Cool'n'Quiet. Dakle imamo modele na taktu od 1,6 i 1,8 GHz s tim da svaki takt postoji varijanta sa 128 ili 256 kB cachea. Uz to, modeli na taktu od 1,6 GHz nemaju podršku za Cool'n'Quiet odnosno dinamičku izmjenu radnog napona i takta zavisno o opterećenju procesora.

AMD Socket 754 namjerava pretvoriti u low-end platformu

S obzirom na nedavno predstavljanje dvojezgrenih verzija Athlona 64 koji rade na Socketu 939, prilično je evidentno da AMD više ne namjerava izdavati Socket 754 verzije Athlona 64. Nije nam poznato koliko će se dugo postojeći Socket 754 Athloni 64 zadržati na tržištu, ali jasno je da nove modele nećemo vidjeti. S druge strane, AMD je nedavno predstavio i Sempron 3300+ - procesor koji radi na taktu od 2 GHz i 128 kB cachea. Premda dotični model još uvijek nije prisutan na tržištu, pretpostavljamo da ćemo u budućnosti vidjeti još brže modele koji bi Socket 754 trebali dosta dugo održavati na životu.



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