Chip loi kep nang luc nhan doi

Tags: toc do xu ly, nang luc xu ly, may tinh de ban, bo xu ly, nha san xuat, tren con duong, the hien, cac Bo, ung dung, co the, phat trien, san pham, CPU, kep, Intel


Chip loi kep nang luc nhan doi
GamePC GPW-955X, dong PC su dung CPU loi kep Intel Pentium D.

AMD va Intel dang chay dua tren con duong phat trien cac bo xu ly da loi cho may tinh de ban va xach tay, nham the hien tot hon vai tro da nhiem va da dong su kien. Tuy nhien, neu cho rang nang luc xu ly va toc do xu ly se tang len theo so loi thi thuc te khong han la nhu vay.

"Hai cai dau hien nhien bao gio cung tot hon mot". Do la cau than chu ma cac nha san xuat bo xu ly Intel va AMD dang co gang “um ba la” cho chung thanh hien thuc trong nam 2006. Ngay cang nhieu cac bo xu ly chinh (CPU) co trong may tinh de ban va gio day la the gioi may tinh xach tay su dung cau truc co ten goi la thiet ke loi kep, cong nghe cho phep nhung hai CPU vao mot khoi silicon duy nhat.

Mac du duoc ton sung voi cum tu loi kep, cac nha san xuat khong nhat thiet cu phai nhac di nhac lai ve cong nghe moi. Lieu ban co the mua mot dan PC doi moi ma lai khong tim hieu xem no co duoc dieu khien boi hai bo nao duoi mot cai dau? Vay cong nghe nay la gi? Tai sao lai phai nhung hai loi vao mot?

Tu nam 2003, Intel va Dell bat dau cam thay boi roi ve huong phat trien bo xu ly. Ke ca cac CPU nhanh nhat luc do chay het toc luc cung kho co the nang kha nang the hien len duoc nua. Cac nha quan sat cua nganh cong nghe bat dau ban tan ve tinh nghiem trong cua he thong lam mat, ke ca khi Intel no luc tung ra cac bo xu ly thuoc hang hi-end. Cac nha san xuat CPU khong the cai thien toc do xung dong ho (Hz), dai luong quyet dinh su nhanh cham cua kha nang the hien.

Buoc vao thi truong CPU loi kep co cac dai dien nhu AMD Athlon 64 X2 va Intel Pentium D. Cac bo xu ly nay phat huy lien ket giua hai loi CPU cho phep thuc hien nhieu bai toan ung dung mot cach hieu qua hon. Quan trong hon, chung phoi hop lam viec cung nhau de dua ra kha nang the hien hoan hao o toc do xu ly khong can cao, hon han tung thanh vien CPU loi don lam viec rieng le. Ket qua la, he thong lam viec mat me, it “stress” hon voi mot luong nho transistor silic hon, bieu hien cho tinh hieu qua trong che tao cac CPU doi dao tinh nang.

Neu ban nhan dinh rang cac CPU loi kep se co toc do xu ly nhanh gap hai lan cac model loi don la hoan toan sai lam. Co nhieu yeu to chi phoi kha nang the hien cua PC. Truoc het, CPU loi kep chi the hien uu the cua minh khi xu ly nhieu ung dung cung mot luc, nhanh hon han cac CPU dung chip roi rac.

Thu hai, ban co the chia se cong viec giua cac chip loi bat ky luc nao. Mac du, voi cac ung dung thuong thuc, ban khong the cho doi kha nang the hien cai thien 70% so voi bo xu ly loi don. Bu lai, CPU loi kep chay o toc do thap hon, cho phep than may manh mai hon cac PC dung bo xu ly loi don. PC World con dua ra bang thu nghiem so sanh giua cac CPU loi don va loi kep dau bang.

Phan mem di theo CPU hai loi

Co rat nhieu linh vuc rat can den nang luc “tai ba” cua cac CPU “hai bo nao”, mot nha phan tich cua nganh cong nghiep nay, ong Nathan Brookwood nhan dinh. Vi du, cac doanh nhan, thuong co rat nhieu chuong trinh muon mo cung mot luc. Cac CPU loi kep se giup ho mo rat nhanh cac thu ho can, va cho phep xu ly cac ung dung hang nang mot cach kip thoi, chang han nhu vua xu ly mot van ban vua mo mot trang web va nghe nhac tren phan mem Media Player.

Dieu quan trong nhat, ngay cang xuat hien nhieu phan mem danh cho cac bo xu ly loi kep. Cac nha san xuat game va card do hoa la hai nhom tich cuc phat trien kien truc da dong su kien (multithread) de khai thac toi da tiem nang cua he thong da chip. "Tham chi voi cac game don dong single-thread, tat ca cac chip do hoa va dieu khien 3D van co the thuoc loai da dong", theo nha phan tich Brookwood.

Cum tu “multithread” da hien dien trong nhieu ung dung sang tao media, nhu Adobe Photoshop va Premier. Ban co the cho doi kieu da dong su kien nay se tran lan khap cac phan mem tu don gian den phuc tap duoc thiet lap danh cho cac CPU hai loi. Ket qua la: Viec dau tu cac he thong may tinh loi kep ngay hom nay se giup ban don nhan cac loi the hien thi cac ung dung mo rong cua ngay mai.

Nhung tat ca cac bo xu ly loi kep khong duoc tao ra theo cung mot cach. Chris Connelly, giam doc tiep thi cua mot hang chuyen phat trien cac PC da loi, GamePC, cho biet, chip xu ly hai nhan cua AMD co kha nang the hien troi hon dang ke so voi CPU Pentium D cua Intel. Ong trich dan dong may tinh Disruptor-SLI cua GamePC, duoc trang bi cac cong nghe hang dau de phuc vu cac game va cac ung dung desktop cao cap. Ho may tinh Disruptor-SLI su dung bo xu ly loi kep AMD Athlon 64 X2.

"Loi phan nan nhieu nhat ve cac san pham loi kep cua Intel va co toc do xu ly qua manh khien toa ra qua nhieu nhiet, trong khi cac chip khong thuc hien duoc nhieu cong viec dung nhu mong doi", Connelly nhan xet.

Tat ca cac nhuoc diem nay co the thay doi duoc. Brookwood cho biet cac chip the he moi danh cho may de ban cua Intel da tro nen hieu qua hon ngay ca o tam toc do xu ly thap.

"Su canh tranh giua Intel va AMD cang gay gat cang co loi cho nguoi tieu dung", theo Brookwood. Intel con hua hen se tung ra bo xu ly loi kep moi danh rieng cho may ban, voi ten goi Conroe vao nua sau nam 2006 va duoc ky vong la se canh tranh hon so voi san pham cua AMD.

Su canh tranh khoc liet nay se som dua cac he thong loi kep tro thanh nhom san pham trong yeu tren thi truong, giam doc Connelly nhan dinh. GamePC cho doi 90-95% so PC hang ban ra vao cuoi nam nay se la loai loi kep.

Tuong lai rong mo

CPU loi kep la mot giai phap tot cho tat ca cac dong san pham tru hang low-end, nhung nguoi quyet dinh cuoi cung van chinh la nguoi tieu dung. Cac CPU 64 bit da danh dau mot moc quan trong trong thi truong hang tieu dung, the hien su thanh cong cua AMD voi dong san pham Athlon 64. Va Brookwood cho rang bat ky ai quan tam den phien ban moi cua he dieu hanh Windows, tuc Windows Vista, hay nghi den mot bo xu ly 64-bit.

"Vista se khai thac cac the manh cua CPU 64-bit theo cac cach ma Windows XP khong the lam duoc" ong Brookwood khang dinh. "Dieu do cung khang dinh cac chuong trinh ung dung 32-bit chay tren phan mem Windows Vista se khong nhanh bang chay tren nen 64-bit".

Do la mot su that kha hien nhien. Vi du, phien ban 64-bit cua Adobe Premiere co the trinh dien mot thuoc video keo dai nhieu gio tot hon nhieu so voi chuong trinh tuong tu nhung la phien ban 32-bit. "Do do, may tinh 64 bit thuc su la san pham mo uoc cua nguoi dung", Brookwood nhan dinh.

Khong dung lai o hai loi, nguoi ta dang phat trien tiep cac bo xu ly 4 loi tro len. Cac loi bo sung se giup tang cuong hon nua nang luc the hien, cho phep bo xu ly dat den tam cao moi ma van khong toa nhieu nhiet, tranh duoc nguy co thuong dan den su te liet CPU. Gan day, Intel con tiet lo tren xa lo thong tin duoc cong bo boi to Tom"s Hardware, trinh bay ve cac du an phat trien cac nen tang CPU 4 va 8 loi, trong vong tu nay den nam 2008.

Lieu bo xu ly mot loi co het thoi? Ket cuc nay co le chi co nguoi tieu dung moi co the tra loi. Boi nhung nguoi chi can dung may tinh de luot web, xu ly cac trang van ban, soan thao e-mail va choi game nhe nhang kieu “boi bai Tay” nhu Solitaire thi chang can nhieu nang luc xu ly. Cac bo xu ly low-end hay CPU mot loi van la phuong an kinh te nhat so voi phuong an da loi.

Theo T.B.

So hoa/PCWorld

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Tìm hiểu: toc do xu ly, nang luc xu ly, may tinh de ban, bo xu ly, nha san xuat, tren con duong, the hien, cac Bo, ung dung, co the, phat trien, san pham, CPU, kep, Intel

Xem Bản Tiếng Việt Có Dấu: Chip lõi kép - năng lực nhân đôi?

Ban co the doc ban tieng Viet co dau cua bai viet Chip lõi kép - năng lực nhân đôi? bang cach nhan chuot vao duong dan tren.

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Nhan xet, hay lien he ve tin Chip loi kep nang luc nhan doi co the gui bang duong dan o duoi. Ban nen gui kem tieu de bai viet Chip loi kep nang luc nhan doi de lam tham khao. Bai viet nay thuoc chuyen de Tin Tong hop trong chuyen muc Cong nghe.

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