{"id":459817,"date":"2025-05-25T12:27:26","date_gmt":"2025-05-25T05:27:26","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=459817"},"modified":"2025-05-25T12:27:26","modified_gmt":"2025-05-25T05:27:26","slug":"cpu-la-gi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/cpu-la-gi\/","title":{"rendered":"CPU l\u00e0 g\u00ec? C\u1ea5u t\u1ea1o, ch\u1ee9c n\u0103ng v\u00e0 c\u00e1c lo\u1ea1i CPU ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay"},"content":{"rendered":"

CPU l\u00e0 g\u00ec?<\/b> \u0110\u00e2y \u0111\u01b0\u1ee3c xem l\u00e0 “b\u1ed9 n\u00e3o” c\u1ee7a m\u00e1y t\u00ednh, n\u01a1i th\u1ef1c hi\u1ec7n h\u1ea7u h\u1ebft c\u00e1c thao t\u00e1c x\u1eed l\u00fd d\u1eef li\u1ec7u v\u00e0 \u0111i\u1ec1u khi\u1ec3n to\u00e0n b\u1ed9 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd c\u00f9ng t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 c\u1ea5u t\u1ea1o c\u1ee7a CPU, ch\u1ee9c n\u0103ng c\u1ee5 th\u1ec3 c\u0169ng nh\u01b0 c\u00e1c lo\u1ea1i CPU ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay tr\u00ean th\u1ecb tr\u01b0\u1eddng. Nh\u1eefng th\u00f4ng tin n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 vai tr\u00f2 thi\u1ebft y\u1ebfu c\u1ee7a CPU trong ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y t\u00ednh v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed.<\/span><\/p>\n

CPU l\u00e0 g\u00ec?<\/b><\/h2>\n

CPU, vi\u1ebft t\u1eaft c\u1ee7a Central Processing Unit (t\u1ea1m d\u1ecbch l\u00e0 b\u1ed9 x\u1eed l\u00fd trung t\u00e2m), l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i v\u00e0 kh\u00f4ng th\u1ec3 thi\u1ebfu trong b\u1ea5t k\u1ef3 h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh n\u00e0o. V\u1ec1 b\u1ea3n ch\u1ea5t, CPU l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c m\u1ea1ch \u0111i\u1ec7n t\u1eed c\u00f3 ch\u1ee9c n\u0103ng th\u1ef1c hi\u1ec7n c\u00e1c c\u00e2u l\u1ec7nh c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh m\u00e1y t\u00ednh. N\u00f3 l\u00e0m \u0111i\u1ec1u n\u00e0y th\u00f4ng qua vi\u1ec7c x\u1eed l\u00fd c\u00e1c ph\u00e9p t\u00ednh s\u1ed1 h\u1ecdc, logic, so s\u00e1nh v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c ho\u1ea1t \u0111\u1ed9ng nh\u1eadp\/xu\u1ea5t d\u1eef li\u1ec7u c\u01a1 b\u1ea3n theo h\u01b0\u1edbng d\u1eabn c\u1ee7a m\u00e3 l\u1ec7nh.<\/span><\/p>\n

\"cpu-la-gi-1\"<\/picture><\/p>\n

Ch\u1ee9c n\u0103ng c\u1ee7a CPU l\u00e0 g\u00ec?<\/b><\/h2>\n

Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a CPU l\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p to\u00e1n logic, s\u1ed1 h\u1ecdc v\u00e0 \u0111i\u1ec1u khi\u1ec3n qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh c\u1ee7a c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh tr\u00ean m\u00e1y t\u00ednh. Khi ng\u01b0\u1eddi d\u00f9ng m\u1edf m\u1ed9t \u1ee9ng d\u1ee5ng b\u1ea5t k\u1ef3, ch\u1eb3ng h\u1ea1n nh\u01b0 tr\u00ecnh duy\u1ec7t web, ph\u1ea7n m\u1ec1m x\u1eed l\u00fd v\u0103n b\u1ea3n hay m\u1ed9t tr\u00f2 ch\u01a1i, CPU s\u1ebd ti\u1ebfn h\u00e0nh x\u1eed l\u00fd t\u1ea5t c\u1ea3 c\u00e1c l\u1ec7nh, d\u1eef li\u1ec7u v\u00e0 t\u00edn hi\u1ec7u li\u00ean quan \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u01b0\u01a1ng tr\u00ecnh \u0111\u00f3 ho\u1ea1t \u0111\u1ed9ng m\u01b0\u1ee3t m\u00e0. N\u00f3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y th\u00f4ng qua ba giai \u0111o\u1ea1n c\u01a1 b\u1ea3n: t\u00ecm n\u1ea1p l\u1ec7nh (fetch), gi\u1ea3i m\u00e3 (decode) v\u00e0 th\u1ef1c thi (execute).<\/span><\/p>\n

\"cpu-la-gi-2\"<\/picture><\/p>\n

B\u00ean c\u1ea1nh \u0111\u00f3, CPU c\u00f2n \u0111\u1ea3m nh\u1eadn vai tr\u00f2 x\u1eed l\u00fd c\u00e1c d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o. V\u00ed d\u1ee5, khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadp li\u1ec7u t\u1eeb b\u00e0n ph\u00edm, di chuy\u1ec3n chu\u1ed9t, ho\u1eb7c th\u1ef1c hi\u1ec7n thao t\u00e1c c\u1ea3m \u1ee9ng, d\u1eef li\u1ec7u n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn CPU \u0111\u1ec3 ph\u00e2n t\u00edch v\u00e0 ph\u1ea3n h\u1ed3i ph\u00f9 h\u1ee3p. CPU c\u0169ng \u0111i\u1ec1u khi\u1ec3n c\u00e1ch c\u00e1c thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng kh\u00e1c nh\u01b0 RAM, \u1ed5 c\u1ee9ng, card \u0111\u1ed3 h\u1ecda\u2026 ho\u1ea1t \u0111\u1ed9ng ph\u1ed1i h\u1ee3p v\u1edbi nhau nh\u1eb1m t\u1ed1i \u01b0u hi\u1ec7u n\u0103ng t\u1ed5ng th\u1ec3 c\u1ee7a m\u00e1y t\u00ednh.<\/span><\/p>\n

\u0110\u1eb7c bi\u1ec7t, trong m\u00f4i tr\u01b0\u1eddng laptop, CPU c\u00f2n ph\u1ea3i l\u00e0m vi\u1ec7c hi\u1ec7u qu\u1ea3 trong m\u1ed9t kh\u00f4ng gian nh\u1ecf g\u1ecdn, \u0111\u1ed3ng th\u1eddi ti\u1ebft ki\u1ec7m \u0111i\u1ec7n n\u0103ng \u0111\u1ec3 k\u00e9o d\u00e0i th\u1eddi l\u01b0\u1ee3ng pin. Do \u0111\u00f3, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00f4ng ng\u1eebng nghi\u00ean c\u1ee9u v\u00e0 c\u1ea3i ti\u1ebfn CPU theo h\u01b0\u1edbng t\u0103ng hi\u1ec7u su\u1ea5t, gi\u1ea3m ti\u00eau th\u1ee5 \u0111i\u1ec7n v\u00e0 h\u1ed7 tr\u1ee3 \u0111a nhi\u1ec7m t\u1ed1t h\u01a1n.<\/span><\/p>\n

C\u1ea5u t\u1ea1o c\u1ee7a CPU<\/b><\/h2>\n

Nh\u01b0 ch\u00fang ta \u0111\u00e3 bi\u1ebft ch\u1ee9c n\u0103ng c\u1ee7a <\/span>CPU l\u00e0 g\u00ec<\/b> v\u00e0 \u0111\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c nh\u1eefng ch\u1ee9c n\u0103ng ph\u1ee9c t\u1ea1p \u0111\u00f3, CPU \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb nhi\u1ec1u b\u1ed9 ph\u1eadn kh\u00e1c nhau, m\u1ed7i ph\u1ea7n \u0111\u1ea3m nh\u1eadn m\u1ed9t vai tr\u00f2 ri\u00eang bi\u1ec7t nh\u01b0ng ph\u1ed1i h\u1ee3p ch\u1eb7t ch\u1ebd v\u1edbi nhau \u0111\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3.<\/span><\/p>\n

Kh\u1ed1i \u0111i\u1ec1u khi\u1ec3n (CU – Control Unit)<\/b><\/h3>\n

\u0110\u00e2y l\u00e0 n\u01a1i ti\u1ebfp nh\u1eadn c\u00e1c y\u00eau c\u1ea7u t\u1eeb ng\u01b0\u1eddi d\u00f9ng, sau \u0111\u00f3 chuy\u1ec3n \u0111\u1ed5i c\u00e1c l\u1ec7nh n\u00e0y th\u00e0nh ng\u00f4n ng\u1eef m\u00e1y m\u00e0 CPU c\u00f3 th\u1ec3 hi\u1ec3u v\u00e0 x\u1eed l\u00fd. CU c\u00f3 nhi\u1ec7m v\u1ee5 \u0111i\u1ec1u ph\u1ed1i ho\u1ea1t \u0111\u1ed9ng c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng, ki\u1ec3m so\u00e1t lu\u1ed3ng d\u1eef li\u1ec7u ra v\u00e0o gi\u1eefa c\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong CPU c\u0169ng nh\u01b0 gi\u1eefa CPU v\u00e0 c\u00e1c thi\u1ebft b\u1ecb ngo\u1ea1i vi. CU \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb c\u00e1c m\u1ea1ch logic, cho ph\u00e9p n\u00f3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c ch\u00ednh x\u00e1c, nhanh ch\u00f3ng v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/span><\/p>\n

\"cpu-la-gi-3\"<\/picture><\/p>\n

Kh\u1ed1i t\u00ednh to\u00e1n ALU (Arithmetic Logic Unit)<\/b><\/p>\n

B\u1ed9 ph\u1eadn n\u00e0y ch\u1ecbu tr\u00e1ch nhi\u1ec7m th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh to\u00e1n h\u1ecdc (c\u1ed9ng, tr\u1eeb, nh\u00e2n, chia) v\u00e0 ph\u00e9p to\u00e1n logic (so s\u00e1nh, v\u00e0, ho\u1eb7c…). \u0110\u00e2y l\u00e0 n\u01a1i th\u1ef1c hi\u1ec7n c\u00e1c qu\u00e1 tr\u00ecnh x\u1eed l\u00fd s\u1ed1 li\u1ec7u tr\u1ef1c ti\u1ebfp v\u00e0 \u0111\u01b0a ra k\u1ebft qu\u1ea3 \u0111\u1ec3 chuy\u1ec3n ti\u1ebfp cho c\u00e1c thao t\u00e1c x\u1eed l\u00fd ti\u1ebfp theo ho\u1eb7c l\u01b0u tr\u1eef.<\/span><\/p>\n

C\u00e1c thanh ghi (Registers)<\/b><\/h3>\n

Thanh ghi (Registers) c\u1ee7a <\/span>CPU l\u00e0 g\u00ec?<\/b> Linh ki\u1ec7n n\u00e0y \u0111\u1ea3m nh\u1eadn c\u00e1c b\u1ed9 nh\u1edb dung l\u01b0\u1ee3ng nh\u1ecf nh\u01b0ng c\u00f3 t\u1ed1c \u0111\u1ed9 truy c\u1eadp c\u1ef1c nhanh, d\u00f9ng \u0111\u1ec3 l\u01b0u tr\u1eef t\u1ea1m th\u1eddi c\u00e1c d\u1eef li\u1ec7u nh\u01b0 h\u1ea1ng to\u00e1n, \u0111\u1ecba ch\u1ec9 b\u1ed9 nh\u1edb ho\u1eb7c k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n. Trong s\u1ed1 \u0111\u00f3, quan tr\u1ecdng nh\u1ea5t l\u00e0 b\u1ed9 \u0111\u1ebfm ch\u01b0\u01a1ng tr\u00ecnh (Program Counter), c\u00f3 nhi\u1ec7m v\u1ee5 l\u01b0u \u0111\u1ecba ch\u1ec9 c\u1ee7a l\u1ec7nh ti\u1ebfp theo c\u1ea7n th\u1ef1c hi\u1ec7n, gi\u00fap qu\u00e1 tr\u00ecnh x\u1eed l\u00fd \u0111\u01b0\u1ee3c di\u1ec5n ra li\u00ean t\u1ee5c v\u00e0 c\u00f3 tr\u00ecnh t\u1ef1.<\/span><\/p>\n

\"cpu-la-gi-4\"<\/picture><\/p>\n

Opcode (Operation Code)<\/b><\/h3>\n

Quan tr\u1ecdng, \u0111\u00e2y l\u00e0 ph\u1ea7n m\u00e3 m\u00e1y trong m\u1ed7i l\u1ec7nh, cho bi\u1ebft CPU c\u1ea7n th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng g\u00ec. M\u1ed7i opcode t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t thao t\u00e1c c\u1ee5 th\u1ec3 nh\u01b0 di chuy\u1ec3n d\u1eef li\u1ec7u, th\u1ef1c hi\u1ec7n ph\u00e9p to\u00e1n, ho\u1eb7c \u0111i\u1ec1u khi\u1ec3n d\u00f2ng ch\u01b0\u01a1ng tr\u00ecnh.<\/span><\/p>\n

Ph\u1ea7n \u0111i\u1ec1u khi\u1ec3n<\/b><\/h3>\n

C\u1ea5u tr\u00fac cu\u1ed1i c\u00f9ng l\u00e0 ph\u1ea7n \u0111i\u1ec1u khi\u1ec3n, c\u00f3 vai tr\u00f2 qu\u1ea3n l\u00fd xung nh\u1ecbp \u2013 t\u1ea7n s\u1ed1 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a CPU. Xung nh\u1ecbp \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng \u0111\u01a1n v\u1ecb MHz ho\u1eb7c GHz v\u00e0 gi\u00fap \u0111\u1ed3ng b\u1ed9 h\u00f3a m\u1ecdi ho\u1ea1t \u0111\u1ed9ng trong CPU c\u0169ng nh\u01b0 gi\u1eefa CPU v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c trong h\u1ec7 th\u1ed1ng. M\u1ed7i chu k\u1ef3 xung nh\u1ecbp t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t b\u01b0\u1edbc x\u1eed l\u00fd nh\u1ecf, quy\u1ebft \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9 th\u1ef1c hi\u1ec7n l\u1ec7nh c\u1ee7a b\u1ed9 x\u1eed l\u00fd.<\/span><\/p>\n

C\u00e1ch CPU x\u1eed l\u00fd l\u1ec7nh v\u00e0 t\u00ednh to\u00e1n<\/b><\/h2>\n

CPU li\u00ean t\u1ee5c th\u1ef1c hi\u1ec7n m\u1ed9t chu tr\u00ecnh x\u1eed l\u00fd l\u1ec7nh g\u1ed3m nhi\u1ec1u b\u01b0\u1edbc, l\u1eb7p l\u1ea1i h\u00e0ng t\u1ef7 l\u1ea7n m\u1ed7i gi\u00e2y. V\u00e0 b\u00ean c\u1ea1nh vi\u1ec7c hi\u1ec3u r\u00f5 <\/span>CPU l\u00e0 g\u00ec<\/b>, b\u1ea1n c\u0169ng c\u1ea7n n\u1eafm r\u00f5 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a CPU nh\u00e9.<\/span><\/p>\n

C\u00e1ch ho\u1ea1t \u0111\u1ed9ng<\/b><\/h3>\n

Nh\u1edd v\u00e0o b\u1ed9 \u0111\u1ebfm ch\u01b0\u01a1ng tr\u00ecnh (Program Counter), CPU bi\u1ebft ch\u00ednh x\u00e1c v\u1ecb tr\u00ed l\u1ec7nh c\u1ea7n th\u1ef1c thi v\u00e0 s\u1ebd ti\u1ebfn h\u00e0nh l\u1ea5y l\u1ec7nh \u0111\u00f3 t\u1eeb b\u1ed9 nh\u1edb l\u1ec7nh (Instruction Memory). L\u1ec7nh sau khi \u0111\u01b0\u1ee3c l\u1ea5y s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ebfn b\u1ed9 gi\u1ea3i m\u00e3 (Instruction Decoder) \u2013 n\u01a1i CPU ph\u00e2n t\u00edch \u0111\u1ec3 hi\u1ec3u n\u1ed9i dung v\u00e0 y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a l\u1ec7nh.<\/span><\/p>\n

\"cpu-la-gi-5\"<\/picture><\/p>\n

T\u1ea1i b\u01b0\u1edbc gi\u1ea3i m\u00e3, CPU x\u00e1c \u0111\u1ecbnh xem l\u1ec7nh y\u00eau c\u1ea7u th\u1ef1c hi\u1ec7n ph\u00e9p to\u00e1n n\u00e0o ho\u1eb7c thao t\u00e1c \u0111i\u1ec1u khi\u1ec3n g\u00ec. L\u1ec7nh c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t ph\u00e9p to\u00e1n s\u1ed1 h\u1ecdc nh\u01b0 c\u1ed9ng, tr\u1eeb, nh\u00e2n, chia, ho\u1eb7c c\u00e1c ph\u00e9p logic nh\u01b0 so s\u00e1nh, AND, OR. Sau khi hi\u1ec3u \u0111\u01b0\u1ee3c b\u1ea3n ch\u1ea5t c\u1ee7a l\u1ec7nh, CPU s\u1ebd th\u1ef1c hi\u1ec7n n\u00f3 th\u00f4ng qua kh\u1ed1i ALU (Arithmetic Logic Unit) \u2013 b\u1ed9 x\u1eed l\u00fd s\u1ed1 h\u1ecdc v\u00e0 logic. \u0110\u00e2y l\u00e0 n\u01a1i di\u1ec5n ra c\u00e1c thao t\u00e1c t\u00ednh to\u00e1n c\u1ee5 th\u1ec3 tr\u00ean d\u1eef li\u1ec7u. D\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o c\u00f3 th\u1ec3 \u0111\u1ebfn t\u1eeb b\u1ed9 nh\u1edb ho\u1eb7c t\u1eeb c\u00e1c thanh ghi t\u1ea1m th\u1eddi trong CPU.<\/span><\/p>\n

Khi l\u1ec7nh \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, k\u1ebft qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh x\u1eed l\u00fd s\u1ebd \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef l\u1ea1i. T\u00f9y theo lo\u1ea1i l\u1ec7nh, k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u01b0u t\u1ea1m th\u1eddi trong thanh ghi (Register) \u0111\u1ec3 s\u1eed d\u1ee5ng ti\u1ebfp trong c\u00e1c b\u01b0\u1edbc x\u1eed l\u00fd sau, ho\u1eb7c \u0111\u01b0\u1ee3c ghi tr\u1edf l\u1ea1i v\u00e0o b\u1ed9 nh\u1edb d\u1eef li\u1ec7u (Data Memory) ho\u1eb7c RAM \u0111\u1ec3 l\u01b0u tr\u1eef l\u00e2u d\u00e0i ho\u1eb7c ph\u1ee5c v\u1ee5 c\u00e1c t\u00e1c v\u1ee5 kh\u00e1c. To\u00e0n b\u1ed9 chu tr\u00ecnh n\u00e0y \u2013 t\u1eeb l\u1ea5y l\u1ec7nh, gi\u1ea3i m\u00e3, th\u1ef1c thi \u0111\u1ebfn l\u01b0u tr\u1eef k\u1ebft qu\u1ea3 \u2013 di\u1ec5n ra v\u1edbi t\u1ed1c \u0111\u1ed9 c\u1ef1c cao v\u00e0 \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i kh\u00f4ng ng\u1eebng, \u0111\u1ea3m b\u1ea3o cho c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh m\u00e1y t\u00ednh ho\u1ea1t \u0111\u1ed9ng m\u01b0\u1ee3t m\u00e0, ch\u00ednh x\u00e1c.<\/span><\/p>\n

V\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/b><\/h3>\n

\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 <\/span>CPU l\u00e0 g\u00ec<\/b> v\u00e0 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng trong th\u1ef1c t\u1ebf, h\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng b\u1ea1n \u0111ang ch\u01a1i m\u1ed9t tr\u00f2 ch\u01a1i \u0111i\u1ec7n t\u1eed y\u00eau c\u1ea7u x\u1eed l\u00fd cao nh\u01b0 Li\u00ean Minh Huy\u1ec1n Tho\u1ea1i (LOL) tr\u00ean m\u00e1y t\u00ednh. Khi b\u1ea1n \u0111i\u1ec1u khi\u1ec3n nh\u00e2n v\u1eadt di chuy\u1ec3n, b\u1eafn \u0111\u1ea1n, ho\u1eb7c t\u01b0\u01a1ng t\u00e1c v\u1edbi m\u00f4i tr\u01b0\u1eddng xung quanh, CPU \u0111ang \u00e2m th\u1ea7m th\u1ef1c hi\u1ec7n h\u00e0ng tri\u1ec7u l\u1ec7nh m\u1ed7i gi\u00e2y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ecdi thao t\u00e1c di\u1ec5n ra m\u01b0\u1ee3t m\u00e0, ch\u00ednh x\u00e1c v\u00e0 kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/span><\/p>\n

Gi\u1ea3 s\u1eed b\u1ea1n nh\u1ea5n ph\u00edm \u201cW\u201d \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n nh\u00e2n v\u1eadt di chuy\u1ec3n l\u00ean ph\u00eda tr\u01b0\u1edbc. \u0110\u1ea7u ti\u00ean, CPU th\u1ef1c hi\u1ec7n b\u01b0\u1edbc l\u1ea5y l\u1ec7nh (Fetch), ngh\u0129a l\u00e0 truy xu\u1ea5t l\u1ec7nh \u0111i\u1ec1u khi\u1ec3n t\u1eeb b\u1ed9 nh\u1edb l\u1ec7nh. \u0110\u00e2y l\u00e0 n\u01a1i l\u01b0u tr\u1eef t\u1ea5t c\u1ea3 c\u00e1c h\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch tr\u00f2 ch\u01a1i v\u1eadn h\u00e0nh.\u00a0<\/span><\/p>\n

\"cpu-la-gi-6\"<\/picture><\/p>\n

Ngay sau \u0111\u00f3, l\u1ec7nh \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o giai \u0111o\u1ea1n gi\u1ea3i m\u00e3 (Decode). CPU th\u00f4ng qua b\u1ed9 gi\u1ea3i m\u00e3 l\u1ec7nh \u0111\u1ec3 ph\u00e2n t\u00edch h\u00e0nh \u0111\u1ed9ng b\u1ea1n v\u1eeba th\u1ef1c hi\u1ec7n. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, n\u00f3 nh\u1eadn di\u1ec7n r\u1eb1ng vi\u1ec7c nh\u1ea5n ph\u00edm \u201cW\u201d l\u00e0 y\u00eau c\u1ea7u di chuy\u1ec3n nh\u00e2n v\u1eadt v\u1ec1 ph\u00eda tr\u01b0\u1edbc. T\u1eeb \u0111\u00f3, CPU x\u00e1c \u0111\u1ecbnh c\u00e1c thao t\u00e1c c\u1ea7n l\u00e0m nh\u01b0 thay \u0111\u1ed5i t\u1ecda \u0111\u1ed9 c\u1ee7a nh\u00e2n v\u1eadt, hi\u1ec3n th\u1ecb h\u00ecnh \u1ea3nh m\u1edbi tr\u00ean m\u00e0n h\u00ecnh, v\u00e0 \u0111\u1ed3ng b\u1ed9 h\u00f3a v\u1edbi c\u00e1c y\u1ebfu t\u1ed1 trong game.<\/span><\/p>\n

Khi \u0111\u00e3 hi\u1ec3u l\u1ec7nh, CPU ti\u1ebfp t\u1ee5c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n l\u1ec7nh (Execute) b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng kh\u1ed1i ALU \u0111\u1ec3 t\u00ednh to\u00e1n v\u1ecb tr\u00ed m\u1edbi c\u1ee7a nh\u00e2n v\u1eadt. Cu\u1ed1i c\u00f9ng, k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef (Store) trong c\u00e1c thanh ghi, tr\u1ea1ng th\u00e1i nh\u00e2n v\u1eadt ho\u1eb7c hi\u1ec7u \u1ee9ng \u0111ang k\u00edch ho\u1ea1t. Nh\u1eefng d\u1eef li\u1ec7u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u1ea1i ngay trong c\u00e1c chu k\u1ef3 x\u1eed l\u00fd ti\u1ebfp theo.<\/span><\/p>\n

T\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd CPU th\u1ebf n\u00e0o l\u00e0 nhanh?<\/b><\/h2>\n

Ch\u00fang ta \u0111\u00e3 bi\u1ebft \u0111\u01b0\u1ee3c b\u1ea3n ch\u1ea5t c\u1ee7a <\/span>CPU l\u00e0 g\u00ec? <\/b>Theo \u0111\u00f3, t\u1ea7n s\u1ed1 xung nh\u1ecbp cho bi\u1ebft s\u1ed1 chu k\u1ef3 m\u00e0 CPU c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n trong m\u1ed9t gi\u00e2y. V\u00ed d\u1ee5, m\u1ed9t CPU c\u00f3 xung nh\u1ecbp 3.0GHz c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n kho\u1ea3ng 3 t\u1ef7 chu k\u1ef3 m\u1ed7i gi\u00e2y. Nh\u01b0 v\u1eady, trong c\u00f9ng m\u1ed9t d\u00f2ng chip x\u1eed l\u00fd, v\u00ed d\u1ee5 nh\u01b0 Intel Core i3, th\u00ec CPU c\u00f3 xung nh\u1ecbp c\u00e0ng cao th\u01b0\u1eddng s\u1ebd c\u00f3 kh\u1ea3 n\u0103ng x\u1eed l\u00fd nhanh h\u01a1n, th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 m\u01b0\u1ee3t m\u00e0 v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/span><\/p>\n

\"cpu-la-gi-7\"<\/picture><\/p>\n

Tuy nhi\u00ean, khi so s\u00e1nh gi\u1eefa c\u00e1c d\u00f2ng chip kh\u00e1c nhau, xung nh\u1ecbp kh\u00f4ng ph\u1ea3i l\u00e0 y\u1ebfu t\u1ed1 duy nh\u1ea5t quy\u1ebft \u0111\u1ecbnh hi\u1ec7u n\u0103ng. Ch\u1eb3ng h\u1ea1n, m\u1ed9t CPU Core i3 hai nh\u00e2n v\u1edbi xung nh\u1ecbp 2.2GHz ch\u01b0a ch\u1eafc \u0111\u00e3 y\u1ebfu h\u01a1n m\u1ed9t CPU Intel Pentium Dual-Core 2.3GHz. M\u1ed7i d\u00f2ng chip \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi ki\u1ebfn tr\u00fac kh\u00e1c nhau, hi\u1ec7u su\u1ea5t tr\u00ean m\u1ed7i chu k\u1ef3 (IPC \u2013 Instructions Per Clock) c\u0169ng kh\u00e1c nhau, d\u1eabn \u0111\u1ebfn s\u1ef1 ch\u00eanh l\u1ec7ch v\u1ec1 s\u1ee9c m\u1ea1nh d\u00f9 xung nh\u1ecbp t\u01b0\u01a1ng \u0111\u1ed1i g\u1ea7n nhau. Ngo\u00e0i ra, c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c nh\u01b0 s\u1ed1 nh\u00e2n, lu\u1ed3ng x\u1eed l\u00fd, b\u1ed9 nh\u1edb \u0111\u1ec7m (cache), c\u0169ng \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 th\u1ef1c thi l\u1ec7nh.<\/span><\/p>\n

C\u00e1c lo\u1ea1i CPU \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay<\/b><\/h2>\n

Trong th\u1ecb tr\u01b0\u1eddng c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i, CPU l\u00e0 b\u1ed9 ph\u1eadn kh\u00f4ng th\u1ec3 thi\u1ebfu trong m\u1ecdi thi\u1ebft b\u1ecb m\u00e1y t\u00ednh, t\u1eeb laptop, PC c\u00e1 nh\u00e2n \u0111\u1ebfn m\u00e1y tr\u1ea1m chuy\u00ean d\u1ee5ng. Ngay b\u00ean d\u01b0\u1edbi \u0111\u00e2y Ho\u00e0ng H\u00e0 Mobile s\u1ebd g\u1ee3i \u00fd cho b\u1ea1n m\u1ed9t s\u1ed1 lo\u1ea1i CPU ph\u1ed5 bi\u1ebfn nh\u00e9.<\/span><\/p>\n

CPU c\u1ee7a h\u00e3ng Intel<\/b><\/h3>\n

D\u00f2ng CPU ph\u1ed5 bi\u1ebfn nh\u1ea5t c\u1ee7a Intel hi\u1ec7n nay ch\u00ednh l\u00e0 Intel Core, bao g\u1ed3m c\u00e1c d\u00f2ng i3, i5, i7 v\u00e0 i9. Trong \u0111\u00f3, Core i3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c trang b\u1ecb cho c\u00e1c m\u00e1y t\u00ednh ph\u1ed5 th\u00f4ng v\u1edbi nhu c\u1ea7u s\u1eed d\u1ee5ng c\u01a1 b\u1ea3n nh\u01b0 l\u01b0\u1edbt web, h\u1ecdc t\u1eadp v\u00e0 x\u1eed l\u00fd v\u0103n ph\u00f2ng. Core i5 l\u00e0 l\u1ef1a ch\u1ecdn c\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u n\u0103ng v\u00e0 gi\u00e1 th\u00e0nh, ph\u00f9 h\u1ee3p v\u1edbi ng\u01b0\u1eddi d\u00f9ng c\u1ea7n x\u1eed l\u00fd \u0111a nhi\u1ec7m, l\u00e0m vi\u1ec7c v\u0103n ph\u00f2ng n\u00e2ng cao ho\u1eb7c ch\u1ec9nh s\u1eeda h\u00ecnh \u1ea3nh \u1edf m\u1ee9c c\u01a1 b\u1ea3n.\u00a0<\/span><\/p>\n

\"cpu-la-gi-8\"<\/picture><\/p>\n

Th\u00eam v\u00e0o \u0111\u00f3, Core i7 l\u1ea1i mang \u0111\u1ebfn hi\u1ec7u su\u1ea5t m\u1ea1nh m\u1ebd h\u01a1n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c d\u00f2ng laptop cao c\u1ea5p v\u00e0 PC ph\u1ee5c v\u1ee5 c\u00f4ng vi\u1ec7c n\u1eb7ng nh\u01b0 d\u1ef1ng video, x\u1eed l\u00fd d\u1eef li\u1ec7u l\u1edbn ho\u1eb7c ch\u01a1i game c\u00f3 c\u1ea5u h\u00ecnh cao. \u0110\u1eb7c bi\u1ec7t, Core i9 l\u00e0 d\u00f2ng CPU cao c\u1ea5p nh\u1ea5t trong b\u1ed9 Intel Core, s\u1edf h\u1eefu nhi\u1ec1u nh\u00e2n, lu\u1ed3ng v\u00e0 t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd \u1ea5n t\u01b0\u1ee3ng, ph\u00f9 h\u1ee3p cho c\u00e1c t\u00e1c v\u1ee5 chuy\u00ean s\u00e2u nh\u01b0 \u0111\u1ed3 h\u1ecda 3D, bi\u00ean t\u1eadp video 4K, l\u1eadp tr\u00ecnh AI ho\u1eb7c d\u00f9ng trong c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y tr\u1ea1m.<\/span><\/p>\n

Song song, Intel c\u00f2n ph\u00e1t tri\u1ec3n m\u1ed9t s\u1ed1 d\u00f2ng CPU kh\u00e1c nh\u01b0 Intel Pentium v\u00e0 Intel Celeron h\u01b0\u1edbng \u0111\u1ebfn ph\u00e2n kh\u00fac gi\u00e1 r\u1ebb, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c thi\u1ebft b\u1ecb c\u1ea7n ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 hi\u1ec7u n\u0103ng c\u01a1 b\u1ea3n. Trong l\u0129nh v\u1ef1c m\u00e1y ch\u1ee7 v\u00e0 x\u1eed l\u00fd chuy\u00ean nghi\u1ec7p, d\u00f2ng Intel Xeon \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1edd kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 x\u1eed l\u00fd \u0111a nhi\u1ec7m c\u1ef1c k\u1ef3 t\u1ed1t.<\/span><\/p>\n

CPU c\u1ee7a h\u00e3ng AMD<\/b><\/h3>\n

AMD CPU l\u00e0 g\u00ec?<\/b> Th\u1ef1c t\u1ebf d\u00f2ng CPU Ryzen \u0111\u01b0\u1ee3c AMD ph\u00e1t tri\u1ec3n theo t\u1eebng c\u1ea5p \u0111\u1ed9 hi\u1ec7u su\u1ea5t, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 Intel, \u0111\u1ec3 \u0111\u00e1p \u1ee9ng \u0111a d\u1ea1ng nhu c\u1ea7u s\u1eed d\u1ee5ng. C\u1ee5 th\u1ec3, Ryzen 3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c trang b\u1ecb trong c\u00e1c d\u00f2ng m\u00e1y t\u00ednh ph\u1ed5 th\u00f4ng, th\u00edch h\u1ee3p cho h\u1ecdc sinh, sinh vi\u00ean ho\u1eb7c ng\u01b0\u1eddi d\u00f9ng v\u0103n ph\u00f2ng ch\u1ec9 c\u1ea7n x\u1eed l\u00fd c\u00e1c t\u00e1c v\u1ee5 c\u01a1 b\u1ea3n. Ryzen 5 l\u00e0 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho nh\u1eefng ng\u01b0\u1eddi d\u00f9ng c\u00f3 nhu c\u1ea7u cao h\u01a1n nh\u01b0 l\u00e0m vi\u1ec7c \u0111a nhi\u1ec7m, ch\u1ec9nh s\u1eeda \u1ea3nh c\u01a1 b\u1ea3n ho\u1eb7c ch\u01a1i c\u00e1c t\u1ef1a game nh\u1eb9.\u00a0<\/span><\/p>\n

\"cpu-la-gi-9\"<\/picture><\/p>\n

V\u1edbi Ryzen 7, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng th\u1ef1c hi\u1ec7n c\u00e1c c\u00f4ng vi\u1ec7c y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t cao nh\u01b0 d\u1ef1ng video, l\u1eadp tr\u00ecnh, thi\u1ebft k\u1ebf \u0111\u1ed3 h\u1ecda, v\u00e0 ch\u01a1i game \u1edf c\u1ea5u h\u00ecnh cao m\u1ed9t c\u00e1ch m\u01b0\u1ee3t m\u00e0. Cu\u1ed1i c\u00f9ng, Ryzen 9 l\u00e0 d\u00f2ng CPU cao c\u1ea5p nh\u1ea5t trong gia \u0111\u00ecnh Ryzen, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c m\u00e1y tr\u1ea1m, game th\u1ee7 chuy\u00ean nghi\u1ec7p v\u00e0 ng\u01b0\u1eddi d\u00f9ng l\u00e0m c\u00f4ng vi\u1ec7c s\u00e1ng t\u1ea1o n\u1ed9i dung n\u1eb7ng. D\u00f2ng n\u00e0y c\u00f3 nhi\u1ec1u nh\u00e2n v\u00e0 lu\u1ed3ng, h\u1ed7 tr\u1ee3 x\u1eed l\u00fd song song c\u1ef1c k\u1ef3 hi\u1ec7u qu\u1ea3, mang \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u01b0\u1ee3t tr\u1ed9i.<\/span><\/p>\n

\u0110i\u1ec3m m\u1ea1nh c\u1ee7a CPU AMD l\u00e0 th\u01b0\u1eddng c\u00f3 gi\u00e1 th\u00e0nh c\u1ea1nh tranh h\u01a1n so v\u1edbi c\u00e1c \u0111\u1ed1i th\u1ee7 c\u00f9ng ph\u00e2n kh\u00fac t\u1eeb Intel, trong khi v\u1eabn \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ho\u1eb7c \u0111\u00f4i khi v\u01b0\u1ee3t tr\u1ed9i trong m\u1ed9t s\u1ed1 t\u00e1c v\u1ee5 nh\u1ea5t \u0111\u1ecbnh, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng t\u1eadn d\u1ee5ng nhi\u1ec1u nh\u00e2n. Ngo\u00e0i ra, c\u00e1c d\u00f2ng CPU AMD hi\u1ec7n \u0111\u1ea1i c\u00f2n h\u1ed7 tr\u1ee3 c\u00f4ng ngh\u1ec7 \u0111a lu\u1ed3ng (Simultaneous Multithreading), cho ph\u00e9p m\u1ed7i nh\u00e2n x\u1eed l\u00fd \u0111\u1ed3ng th\u1eddi nhi\u1ec1u lu\u1ed3ng d\u1eef li\u1ec7u, t\u0103ng \u0111\u00e1ng k\u1ec3 hi\u1ec7u qu\u1ea3 x\u1eed l\u00fd trong m\u00f4i tr\u01b0\u1eddng \u0111a nhi\u1ec7m.<\/span><\/p>\n

CPU c\u1ee7a h\u00e3ng ARM<\/b><\/h3>\n

Kh\u00e1c v\u1edbi c\u00e1c CPU truy\u1ec1n th\u1ed1ng trong m\u00e1y t\u00ednh c\u00e1 nh\u00e2n, CPU ARM ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00e1y t\u00ednh b\u1ea3ng, thi\u1ebft b\u1ecb IoT v\u00e0 th\u1eadm ch\u00ed c\u1ea3 m\u1ed9t s\u1ed1 d\u00f2ng laptop hi\u1ec7n \u0111\u1ea1i. Ki\u1ebfn tr\u00fac ARM n\u1ed5i ti\u1ebfng nh\u1edd kh\u1ea3 n\u0103ng ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u01b0u, cho ph\u00e9p thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng l\u00e2u d\u00e0i m\u00e0 kh\u00f4ng l\u00e0m hao pin nhanh ch\u00f3ng.\u00a0<\/span><\/p>\n

\"cpu-la-gi-10\"<\/picture><\/p>\n

M\u1ed9t trong nh\u1eefng v\u00ed d\u1ee5 n\u1ed5i b\u1eadt nh\u1ea5t ch\u00ednh l\u00e0 d\u00f2ng chip Apple A14 Bionic v\u00e0 Apple M1, s\u1eed d\u1ee5ng ki\u1ebfn tr\u00fac ARM. Apple A14 Bionic \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c m\u1eabu iPhone v\u00e0 iPad hi\u1ec7n \u0111\u1ea1i, mang l\u1ea1i hi\u1ec7u su\u1ea5t x\u1eed l\u00fd m\u1ea1nh m\u1ebd cho c\u00e1c t\u00e1c v\u1ee5 nh\u01b0 ch\u01a1i game, ch\u1ec9nh s\u1eeda video, hay s\u1eed d\u1ee5ng tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o (AI). Trong khi \u0111\u00f3, chip Apple M1 l\u1ea7n \u0111\u1ea7u xu\u1ea5t hi\u1ec7n trong d\u00f2ng MacBook v\u00e0 iMac \u0111\u00e3 cho th\u1ea5y s\u1ee9c m\u1ea1nh th\u1ef1c s\u1ef1 c\u1ee7a ki\u1ebfn tr\u00fac ARM khi c\u00f3 th\u1ec3 c\u1ea1nh tranh, th\u1eadm ch\u00ed v\u01b0\u1ee3t qua m\u1ed9t s\u1ed1 CPU Intel v\u00e0 AMD trong nhi\u1ec1u t\u00e1c v\u1ee5, \u0111\u1ed3ng th\u1eddi v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c m\u1ee9c ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng th\u1ea5p \u0111\u00e1ng kinh ng\u1ea1c.<\/span><\/p>\n

K\u1ebft lu\u1eadn<\/b><\/h2>\n

Nh\u01b0 v\u1eady, Ho\u00e0ng H\u00e0 Mobile \u0111\u00e3 cung c\u1ea5p cho b\u1ea1n th\u00f4ng tin v\u1ec1 <\/span>CPU l\u00e0 g\u00ec?<\/b> c\u0169ng nh\u01b0 gi\u1edbi thi\u1ec7u cho b\u1ea1n c\u00e1c th\u00f4ng tin li\u00ean quan \u0111\u1ebfn c\u1ea5u tr\u00fac, ch\u1ee9c n\u0103ng v\u00e0 g\u1ee3i \u00fd c\u00e1c d\u00f2ng CPU ph\u1ed5 bi\u1ebfn hi\u1ec7n nay. Hy v\u1ecdng qua b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n c\u00f3 th\u1ec3 d\u1eef ki\u1ec7n h\u1eefu \u00edch v\u1ec1 CPU nh\u00e9.<\/span><\/p>\n

Xem th\u00eam:<\/b><\/p>\n