{"id":5465,"date":"2026-02-23T20:58:06","date_gmt":"2026-02-23T20:58:06","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=5465"},"modified":"2026-02-27T19:59:21","modified_gmt":"2026-02-27T19:59:21","slug":"gigabit-so-voi-gigabyte-khac-nhau-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/vi\/cong-nghe-2\/gigabit-so-voi-gigabyte-khac-nhau-nhu-the-nao\/","title":{"rendered":"Gigabit v\u00e0 Gigabyte: S\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 g\u00ec?"},"content":{"rendered":"<p>Tho\u1ea1t nh\u00ecn, gigabit v\u00e0 gigabyte tr\u00f4ng g\u1ea7n nh\u01b0 gi\u1ed1ng h\u1ec7t nhau. Trong th\u1ef1c t\u1ebf, ch\u00fang \u0111o l\u01b0\u1eddng hai th\u1ee9 ho\u00e0n to\u00e0n kh\u00e1c nhau. M\u1ed9t c\u00e1i cho b\u1ea1n bi\u1ebft t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u di chuy\u1ec3n qua m\u1ea1ng ho\u1eb7c k\u1ebft n\u1ed1i b\u0103ng th\u00f4ng r\u1ed9ng. C\u00e1i kia cho b\u1ea1n bi\u1ebft b\u1ea1n c\u00f3 th\u1ec3 l\u01b0u tr\u1eef bao nhi\u00eau d\u1eef li\u1ec7u tr\u00ean m\u1ed9t thi\u1ebft b\u1ecb. S\u1ef1 kh\u00e1c bi\u1ec7t nh\u1ecf \u0111\u00f3, \u0111\u1eb7c bi\u1ec7t l\u00e0 ch\u1eef \u201cb\u201d vi\u1ebft th\u01b0\u1eddng so v\u1edbi ch\u1eef \u201cB\u201d vi\u1ebft hoa, l\u00e0 ngu\u1ed3n g\u1ed1c c\u1ee7a s\u1ef1 nh\u1ea7m l\u1eabn v\u00f4 t\u1eadn khi mua c\u00e1c g\u00f3i b\u0103ng th\u00f4ng r\u1ed9ng, \u0111\u00e1nh gi\u00e1 t\u1ed1c \u0111\u1ed9, t\u1ea3i xu\u1ed1ng t\u1ec7p, t\u1ea3i l\u00ean n\u1ed9i dung ho\u1eb7c ch\u1ecdn l\u01b0u tr\u1eef.<\/p>\n\n\n\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch s\u1ef1 kh\u00e1c bi\u1ec7t m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng, k\u1ebft n\u1ed1i n\u00f3 v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng trong th\u1ebf gi\u1edbi th\u1ef1c v\u00e0 s\u1eeda ch\u1eefa nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn v\u1ec1 t\u1ed1c \u0111\u1ed9, l\u01b0u tr\u1eef, b\u0103ng th\u00f4ng, th\u00f4ng tin k\u1ef9 thu\u1eadt s\u1ed1 v\u00e0 chuy\u1ec3n \u0111\u1ed5i.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-the-difference-between-gigabit-and-gigabyte\">S\u1ef1 Kh\u00e1c Bi\u1ec7t Gi\u1eefa Gigabit v\u00e0 Gigabyte L\u00e0 G\u00ec?<\/h2>\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Kh\u00eda C\u1ea1nh<\/th><th>Gigabit (Gb)<\/th><th>Gigabyte (GB)<\/th><\/tr><\/thead><tbody><tr><td>\u0110o l\u01b0\u1eddng<\/td><td>T\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u<\/td><td>Dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef d\u1eef li\u1ec7u<\/td><\/tr><tr><td>K\u00edch th\u01b0\u1edbc<\/td><td>1.000.000.000 bit<\/td><td>1.000.000.000 byte (8.000.000.000 bit)<\/td><\/tr><tr><td>Chuy\u1ec3n \u0111\u1ed5i<\/td><td>1 Gb = 0,125 GB<\/td><td>1 GB = 8 Gb<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>M\u1ed9t gigabit \u0111o l\u01b0\u1eddng t\u1ed1c \u0111\u1ed9 truy\u1ec1n qua k\u1ebft n\u1ed1i b\u0103ng th\u00f4ng r\u1ed9ng.<br>M\u1ed9t gigabyte \u0111o l\u01b0\u1eddng k\u00edch th\u01b0\u1edbc l\u01b0u tr\u1eef.<\/p>\n\n\n\n<p>M\u1ed9t gigabyte b\u1eb1ng t\u00e1m gigabit v\u00ec m\u1ed9t byte ch\u1ee9a t\u00e1m bit. Quy t\u1eafc \u0111o l\u01b0\u1eddng \u0111\u01a1n gi\u1ea3n \u0111\u00f3 gi\u1ea3i th\u00edch h\u1ea7u h\u1ebft s\u1ef1 nh\u1ea7m l\u1eabn xung quanh t\u1ed1c \u0111\u1ed9 internet v\u00e0 k\u00edch th\u01b0\u1edbc t\u1ec7p.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"what-a-gigabit-really-measures\">Gigabit Th\u1ef1c S\u1ef1 \u0110o L\u01b0\u1eddng G\u00ec<\/h2>\n\n\n<p>M\u1ed9t gigabit l\u00e0 m\u1ed9t \u0111\u01a1n v\u1ecb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong <a href=\"https:\/\/securitybriefing.net\/vi\/mang-luoi\/mang-hoat-dong-nhu-the-nao\/\">m\u1ea1ng<\/a> v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng b\u0103ng th\u00f4ng r\u1ed9ng. Khi nh\u00e0 cung c\u1ea5p internet c\u1ee7a b\u1ea1n qu\u1ea3ng c\u00e1o c\u00e1p quang 1 Gbps, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 k\u1ebft n\u1ed1i c\u00f3 th\u1ec3 truy\u1ec1n l\u00ean t\u1edbi m\u1ed9t t\u1ef7 bit m\u1ed7i gi\u00e2y trong \u0111i\u1ec1u ki\u1ec7n l\u00fd t\u01b0\u1edfng.<\/p>\n\n\n\n<p>C\u00e1c ti\u00eau chu\u1ea9n m\u1ea1ng ph\u00e1t tri\u1ec3n xung quanh bit v\u00ec vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u x\u1ea3y ra \u1edf c\u1ea5p \u0111\u1ed9 bit. B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, c\u00f4ng t\u1eafc, c\u00e1p Ethernet v\u00e0 th\u1eadm ch\u00ed c\u1ea3 c\u00e1c \u0111\u01b0\u1eddng thu\u00ea bao \u0111\u1ec1u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u00e0 \u0111\u00e1nh gi\u00e1 b\u1eb1ng bit m\u1ed7i gi\u00e2y. C\u00e1c doanh nghi\u1ec7p d\u1ef1a v\u00e0o c\u00e1c \u0111\u01b0\u1eddng thu\u00ea bao \u0111\u1ec3 c\u00f3 k\u1ebft n\u1ed1i \u1ed5n \u0111\u1ecbnh c\u0169ng th\u1ea5y t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng gigabit v\u00ec b\u0103ng th\u00f4ng \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng bit tr\u00ean c\u00e1c \u0111\u01b0\u1eddng m\u1ea1ng.<\/p>\n\n\n\n<p>\u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao b\u1ea1n th\u1ea5y t\u1ed1c \u0111\u1ed9 nh\u01b0 300 Mbps, 500 Mbps ho\u1eb7c 1 Gbps.<\/p>\n\n\n\n<p>Tuy nhi\u00ean, khi b\u1ea1n t\u1ea3i xu\u1ed1ng m\u1ed9t t\u1ec7p ho\u1eb7c t\u1ea3i l\u00ean m\u1ed9t video, m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n hi\u1ec3n th\u1ecb t\u1ed1c \u0111\u1ed9 b\u1eb1ng megabyte m\u1ed7i gi\u00e2y (MB\/s). S\u1ef1 kh\u00f4ng kh\u1edbp \u0111\u00f3 l\u00e0 n\u01a1i b\u1eaft \u0111\u1ea7u s\u1ef1 nh\u1ea7m l\u1eabn.<\/p>\n\n\n\n<p>\u0110\u1ec3 chuy\u1ec3n \u0111\u1ed5i:<\/p>\n\n\n\n<p class=\"has-text-align-center\">1 Gbps \u00f7 8 = 125 MB\/s<\/p>\n\n\n\n<p>V\u00ec v\u1eady, m\u1ed9t g\u00f3i b\u0103ng th\u00f4ng r\u1ed9ng \u201c1 Gig\u201d kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 1000 MB m\u1ed7i gi\u00e2y. N\u00f3 c\u00f3 ngh\u0129a l\u00e0 t\u1ed1c \u0111\u1ed9 t\u1ea3i xu\u1ed1ng t\u1ed1i \u0111a l\u00fd thuy\u1ebft l\u00e0 125 megabyte m\u1ed7i gi\u00e2y.<\/p>\n\n\n\n<p>T\u1ed1c \u0111\u1ed9 t\u1ea3i l\u00ean ho\u1ea1t \u0111\u1ed9ng theo c\u00e1ch t\u01b0\u01a1ng t\u1ef1. N\u1ebfu k\u1ebft n\u1ed1i b\u0103ng th\u00f4ng r\u1ed9ng c\u1ee7a b\u1ea1n h\u1ed7 tr\u1ee3 d\u1ecbch v\u1ee5 \u0111\u1ed1i x\u1ee9ng 1 Gbps, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 c\u1ea3 t\u1ea3i xu\u1ed1ng v\u00e0 t\u1ea3i l\u00ean \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 125 MB\/s trong l\u00fd thuy\u1ebft, m\u1eb7c d\u00f9 k\u1ebft qu\u1ea3 t\u1ea3i l\u00ean th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 kh\u00e1c nhau.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"what-a-gigabyte-actually-represents\">Gigabyte Th\u1ef1c S\u1ef1 \u0110\u1ea1i Di\u1ec7n Cho G\u00ec<\/h2>\n\n\n<p>M\u1ed9t gigabyte \u0111o l\u01b0\u1eddng dung l\u01b0\u1ee3ng. N\u00f3 m\u00f4 t\u1ea3 l\u01b0\u1ee3ng th\u00f4ng tin k\u1ef9 thu\u1eadt s\u1ed1 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef ho\u1eb7c k\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed9t t\u1ec7p.<\/p>\n\n\n\n<p>N\u1ebfu \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh c\u1ee7a b\u1ea1n c\u00f3 dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef 128 GB, \u0111i\u1ec1u \u0111\u00f3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn kh\u00f4ng gian c\u00f3 s\u1eb5n cho \u1ee9ng d\u1ee5ng, \u1ea3nh, t\u1ea3i xu\u1ed1ng ph\u00e1t tr\u1ef1c tuy\u1ebfn, c\u00e0i \u0111\u1eb7t tr\u00f2 ch\u01a1i v\u00e0 sao l\u01b0u \u0111\u00e1m m\u00e2y. N\u1ebfu m\u1ed9t t\u1ec7p phim l\u00e0 4 GB, \u0111i\u1ec1u \u0111\u00f3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn k\u00edch th\u01b0\u1edbc c\u1ee7a n\u00f3.<\/p>\n\n\n\n<p>H\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng byte v\u00ec byte \u0111\u1ea1i di\u1ec7n cho c\u00e1c kh\u1ed1i d\u1eef li\u1ec7u c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng trong m\u00e1y t\u00ednh. Trong khi truy\u1ec1n t\u1ea3i x\u1ea3y ra b\u1eb1ng bit tr\u00ean c\u00e1c g\u00f3i b\u0103ng th\u00f4ng r\u1ed9ng v\u00e0 \u0111\u01b0\u1eddng m\u1ea1ng, l\u01b0u tr\u1eef d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c b\u1eb1ng byte.<\/p>\n\n\n\n<p>M\u1ed1i quan h\u1ec7 r\u1ea5t \u0111\u01a1n gi\u1ea3n nh\u01b0ng quan tr\u1ecdng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gigabit = t\u1ed1c \u0111\u1ed9<\/li>\n\n\n\n<li>Gigabyte = k\u00edch th\u01b0\u1edbc<\/li>\n<\/ul>\n\n\n\n<p>M\u1ed9t c\u00e1i \u0111o l\u01b0\u1eddng d\u00f2ng ch\u1ea3y qua k\u1ebft n\u1ed1i. C\u00e1i kia \u0111o l\u01b0\u1eddng th\u1ec3 t\u00edch b\u00ean trong l\u01b0u tr\u1eef.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"why-internet-speed-feels-slower-than-advertised\">T\u1ea1i Sao T\u1ed1c \u0110\u1ed9 Internet C\u1ea3m Th\u1ea5y Ch\u1eadm H\u01a1n So V\u1edbi Qu\u1ea3ng C\u00e1o<\/h2>\n\n\n<p>Nhi\u1ec1u ng\u01b0\u1eddi \u0111\u0103ng k\u00fd g\u00f3i b\u0103ng th\u00f4ng r\u1ed9ng 1 Gbps v\u00e0 sau \u0111\u00f3 c\u1ea3m th\u1ea5y th\u1ea5t v\u1ecdng khi t\u1ea3i xu\u1ed1ng kh\u00f4ng hi\u1ec3n th\u1ecb \u201c1000 MB\/s\u201d. V\u1ea5n \u0111\u1ec1 kh\u00f4ng ph\u1ea3i l\u00e0 l\u1eeba d\u1ed1i; \u0111\u00f3 l\u00e0 chuy\u1ec3n \u0111\u1ed5i, gi\u1edbi h\u1ea1n b\u0103ng th\u00f4ng v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 m\u1ea1ng th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p>\u0110\u1ea7u ti\u00ean, chia cho t\u00e1m chuy\u1ec3n \u0111\u1ed5i t\u1ed1c \u0111\u1ed9 gigabit sang megabyte m\u1ed7i gi\u00e2y. \u0110i\u1ec1u \u0111\u00f3 gi\u1ea3m 1 Gbps xu\u1ed1ng c\u00f2n 125 MB\/s.<\/p>\n\n\n\n<p>Th\u1ee9 hai, kh\u00f4ng c\u00f3 k\u1ebft n\u1ed1i b\u0103ng th\u00f4ng r\u1ed9ng n\u00e0o ch\u1ea1y \u1edf m\u1ee9c t\u1ed1i \u0111a l\u00fd thuy\u1ebft li\u00ean t\u1ee5c. M\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 gi\u1ea3m hi\u1ec7u su\u1ea5t truy\u1ec1n t\u1ea3i hi\u1ec7u qu\u1ea3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Qu\u00e1 t\u1ea3i giao th\u1ee9c m\u1ea1ng<\/li>\n\n\n\n<li>Gi\u1edbi h\u1ea1n x\u1eed l\u00fd c\u1ee7a b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn<\/li>\n\n\n\n<li>Suy gi\u1ea3m t\u00edn hi\u1ec7u WiFi<\/li>\n\n\n\n<li>Gi\u1edbi h\u1ea1n m\u00e1y ch\u1ee7<\/li>\n\n\n\n<li>T\u1eafc ngh\u1ebdn trong gi\u1edd cao \u0111i\u1ec3m<\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu b\u1ea1n \u0111ang ph\u00e1t tr\u1ef1c tuy\u1ebfn n\u1ed9i dung 4K, ch\u01a1i game tr\u1ef1c tuy\u1ebfn ho\u1eb7c chuy\u1ec3n c\u00e1c t\u1ec7p phim l\u1edbn l\u00ean \u0111\u00e1m m\u00e2y, <a href=\"https:\/\/www.coursera.org\/articles\/what-is-bandwidth\">b\u0103ng th\u00f4ng<\/a> c\u00f3 th\u1ec3 dao \u0111\u1ed9ng t\u00f9y thu\u1ed9c v\u00e0o s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb chia s\u1ebb k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<p>Trong \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf, m\u1ed9t k\u1ebft n\u1ed1i b\u0103ng th\u00f4ng r\u1ed9ng c\u00f3 d\u00e2y 1 Gbps th\u01b0\u1eddng cung c\u1ea5p kho\u1ea3ng 110\u2013118 MB\/s. \u0110i\u1ec1u \u0111\u00f3 l\u00e0 b\u00ecnh th\u01b0\u1eddng v\u00e0 \u0111\u01b0\u1ee3c mong \u0111\u1ee3i.<\/p>\n\n\n\n<p>Hi\u1ec3u r\u00f5 gigabit so v\u1edbi gigabyte lo\u1ea1i b\u1ecf nh\u1eefng k\u1ef3 v\u1ecdng kh\u00f4ng th\u1ef1c t\u1ebf v\u1ec1 hi\u1ec7u su\u1ea5t t\u1ea3i xu\u1ed1ng v\u00e0 t\u1ea3i l\u00ean.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"calculating-download-and-upload-time-correctly\">T\u00ednh To\u00e1n Th\u1eddi Gian T\u1ea3i Xu\u1ed1ng v\u00e0 T\u1ea3i L\u00ean Ch\u00ednh X\u00e1c<\/h2>\n\n\n<p>\u0110\u1ec3 \u01b0\u1edbc t\u00ednh th\u1eddi gian t\u1ea3i xu\u1ed1ng, b\u1ea1n c\u1ea7n c\u1ea3 k\u00edch th\u01b0\u1edbc t\u1ec7p (t\u00ednh b\u1eb1ng gigabyte) v\u00e0 t\u1ed1c \u0111\u1ed9 k\u1ebft n\u1ed1i (chuy\u1ec3n \u0111\u1ed5i th\u00e0nh megabyte m\u1ed7i gi\u00e2y).<\/p>\n\n\n\n<p>H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng t\u1ea3i xu\u1ed1ng m\u1ed9t b\u1ed9 phim 1 GB tr\u00ean k\u1ebft n\u1ed1i b\u0103ng th\u00f4ng r\u1ed9ng 1 Gbps.<\/p>\n\n\n\n<p>1 Gbps b\u1eb1ng 125 MB\/s.<br>1 GB b\u1eb1ng 1000 MB (s\u1eed d\u1ee5ng \u0111o l\u01b0\u1eddng th\u1eadp ph\u00e2n).<\/p>\n\n\n\n<p class=\"has-text-align-center\">1000 \u00f7 125 = 8 gi\u00e2y (t\u1ed1i \u0111a l\u00fd thuy\u1ebft).<\/p>\n\n\n\n<p>Trong \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf, c\u00f3 th\u1ec3 m\u1ea5t 9\u201312 gi\u00e2y.<\/p>\n\n\n\n<p>B\u00e2y gi\u1edd h\u00e3y xem x\u00e9t t\u1ea3i l\u00ean m\u1ed9t b\u1ea3n c\u1eadp nh\u1eadt tr\u00f2 ch\u01a1i 20 GB l\u00ean d\u1ecbch v\u1ee5 sao l\u01b0u \u0111\u00e1m m\u00e2y.<\/p>\n\n\n\n<p class=\"has-text-align-center\">20.000 MB \u00f7 125 MB\/s = 160 gi\u00e2y theo l\u00fd thuy\u1ebft.<\/p>\n\n\n\n<p>Trong th\u1ef1c t\u1ebf, hi\u1ec7u su\u1ea5t t\u1ea3i l\u00ean c\u00f3 th\u1ec3 thay \u0111\u1ed5i nh\u1eb9 do qu\u00e1 t\u1ea3i m\u1ea1ng ho\u1eb7c chia s\u1ebb b\u0103ng th\u00f4ng.<\/p>\n\n\n\n<p>\u0110\u00e2y l\u00e0 n\u01a1i s\u1ef1 nh\u1ea7m l\u1eabn bi\u1ebfn m\u1ea5t: k\u00edch th\u01b0\u1edbc t\u1ec7p \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng gigabyte, nh\u01b0ng t\u1ed1c \u0111\u1ed9 t\u1ea3i xu\u1ed1ng v\u00e0 t\u1ea3i l\u00ean ph\u1ea3i \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i t\u1eeb gigabit.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"the-capital-letter-that-changes-everything\">Ch\u1eef Vi\u1ebft Hoa Thay \u0110\u1ed5i M\u1ecdi Th\u1ee9<\/h2>\n\n\n<p>M\u1ed9t trong nh\u1eefng s\u1ef1 kh\u00e1c bi\u1ec7t b\u1ecb b\u1ecf qua nhi\u1ec1u nh\u1ea5t trong c\u00f4ng ngh\u1ec7 l\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u1eef \u201cb\u201d vi\u1ebft th\u01b0\u1eddng v\u00e0 ch\u1eef \u201cB\u201d vi\u1ebft hoa.\u201d<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gb = gigabit<\/li>\n\n\n\n<li>GB = gigabyte<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mbps = megabit m\u1ed7i gi\u00e2y<\/li>\n\n\n\n<li>MB\/s = megabyte m\u1ed7i gi\u00e2y<\/li>\n<\/ul>\n\n\n\n<p>Ch\u1eef vi\u1ebft hoa \u0111\u00f3 \u0111\u1ea1i di\u1ec7n cho s\u1ef1 kh\u00e1c bi\u1ec7t g\u1ea5p t\u00e1m l\u1ea7n trong \u0111o l\u01b0\u1eddng.<\/p>\n\n\n\n<p>Khi tr\u00ecnh duy\u1ec7t c\u1ee7a b\u1ea1n hi\u1ec3n th\u1ecb 50 MB\/s trong qu\u00e1 tr\u00ecnh t\u1ea3i xu\u1ed1ng b\u0103ng th\u00f4ng r\u1ed9ng, \u0111i\u1ec1u \u0111\u00f3 b\u1eb1ng 400 Mbps. Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng nh\u1ea7m t\u01b0\u1edfng r\u1eb1ng k\u1ebft n\u1ed1i c\u1ee7a h\u1ecd ho\u1ea1t \u0111\u1ed9ng k\u00e9m khi th\u1ef1c t\u1ebf h\u1ecd \u0111ang tr\u1ed9n l\u1eabn c\u00e1c \u0111\u01a1n v\u1ecb t\u1ed1c \u0111\u1ed9.<\/p>\n\n\n\n<p>Chi ti\u1ebft n\u00e0y quan tr\u1ecdng khi so s\u00e1nh c\u00e1c g\u00f3i b\u0103ng th\u00f4ng r\u1ed9ng, \u0111\u00e1nh gi\u00e1 b\u0103ng th\u00f4ng ho\u1eb7c ch\u1ecdn c\u00e1c \u0111\u01b0\u1eddng thu\u00ea bao cho m\u1ee5c \u0111\u00edch kinh doanh.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"binary-vs-decimal-why-your-computer-shows-less-storage\">Nh\u1ecb Ph\u00e2n vs Th\u1eadp Ph\u00e2n: T\u1ea1i Sao M\u00e1y T\u00ednh C\u1ee7a B\u1ea1n Hi\u1ec3n Th\u1ecb \u00cdt L\u01b0u Tr\u1eef H\u01a1n<\/h2>\n\n\n<p>M\u1ed9t y\u1ebfu t\u1ed1 tinh t\u1ebf nh\u01b0ng quan tr\u1ecdng kh\u00e1c l\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa \u0111o l\u01b0\u1eddng th\u1eadp ph\u00e2n v\u00e0 nh\u1ecb ph\u00e2n.<\/p>\n\n\n\n<p>C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t l\u01b0u tr\u1eef \u0111\u1ecbnh ngh\u0129a:<\/p>\n\n\n\n<p class=\"has-text-align-center\">1 GB = 1.000.000.000 byte (h\u1ec7 th\u1eadp ph\u00e2n)<\/p>\n\n\n\n<p>H\u1ec7 \u0111i\u1ec1u h\u00e0nh th\u01b0\u1eddng t\u00ednh to\u00e1n b\u1eb1ng nh\u1ecb ph\u00e2n:<\/p>\n\n\n\n<p class=\"has-text-align-center\">1 GiB = 1.073.741.824 byte<\/p>\n\n\n\n<p>V\u00ec \u0111o l\u01b0\u1eddng nh\u1ecb ph\u00e2n s\u1eed d\u1ee5ng l\u0169y th\u1eeba c\u1ee7a hai, m\u1ed9t \u1ed5 \u0111\u0129a 500 GB c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n kho\u1ea3ng 465 GB trong h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n. Kh\u00f4ng c\u00f3 g\u00ec b\u1ecb thi\u1ebfu; n\u00f3 ch\u1ec9 \u0111\u01a1n gi\u1ea3n \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n kh\u00e1c nhau.<\/p>\n\n\n\n<p>S\u1ef1 kh\u00e1c bi\u1ec7t trong t\u00ednh to\u00e1n nh\u1ecb ph\u00e2n so v\u1edbi th\u1eadp ph\u00e2n c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch th\u00f4ng tin k\u1ef9 thu\u1eadt s\u1ed1 xu\u1ea5t hi\u1ec7n trong c\u00e1c g\u00f3i l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"gigabit-vs-gigabyte-in-everyday-scenarios\">Gigabit vs Gigabyte Trong C\u00e1c T\u00ecnh Hu\u1ed1ng H\u00e0ng Ng\u00e0y<\/h2>\n\n\n<p>Khi ch\u1ecdn m\u1ed9t g\u00f3i b\u0103ng th\u00f4ng r\u1ed9ng, gigabit x\u00e1c \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u c\u00f3 th\u1ec3 di chuy\u1ec3n qua c\u00e1c \u0111\u01b0\u1eddng m\u1ea1ng c\u1ee7a b\u1ea1n nhanh nh\u01b0 th\u1ebf n\u00e0o. T\u1ed1c \u0111\u1ed9 gigabit cao h\u01a1n c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t ph\u00e1t tr\u1ef1c tuy\u1ebfn, gi\u1ea3m \u0111\u1ed9 tr\u1ec5 khi ch\u01a1i game v\u00e0 r\u00fat ng\u1eafn th\u1eddi gian t\u1ea3i xu\u1ed1ng phim l\u1edbn. \u0110i\u1ec1u n\u00e0y tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t \u0111\u00e1ng ch\u00fa \u00fd khi x\u1eed l\u00fd c\u00e1c chuy\u1ec3n \u0111\u1ed5i ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao ho\u1eb7c t\u1ea3i xu\u1ed1ng video t\u1eeb c\u00e1c c\u00f4ng c\u1ee5 d\u1ef1a tr\u00ean tr\u00ecnh duy\u1ec7t nh\u01b0 <a href=\"https:\/\/tubetomp4.it.com\/\">tubetomp4.it.com<\/a>, n\u01a1i t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 l\u01b0u tr\u1eef c\u00e1c t\u1ec7p c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn t\u00ednh b\u1eb1ng gigabyte c\u1ee5c b\u1ed9.<\/p>\n\n\n\n<p>Khi mua m\u1ed9t m\u00e1y t\u00ednh x\u00e1ch tay ho\u1eb7c \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, gigabyte x\u00e1c \u0111\u1ecbnh l\u01b0\u1ee3ng d\u1eef li\u1ec7u b\u1ea1n c\u00f3 th\u1ec3 l\u01b0u tr\u1eef c\u1ee5c b\u1ed9 ho\u1eb7c tr\u00ean \u0111\u00e1m m\u00e2y. Nhi\u1ec1u gigabyte h\u01a1n c\u00f3 ngh\u0129a l\u00e0 nhi\u1ec1u kh\u00f4ng gian h\u01a1n cho \u1ee9ng d\u1ee5ng, t\u1ea3i xu\u1ed1ng ph\u00e1t tr\u1ef1c tuy\u1ebfn, n\u1ed9i dung tr\u00f2 ch\u01a1i v\u00e0 sao l\u01b0u.<\/p>\n\n\n\n<p>C\u00e1c doanh nghi\u1ec7p s\u1eed d\u1ee5ng c\u00e1c \u0111\u01b0\u1eddng thu\u00ea bao \u0111\u1ec3 c\u00f3 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh ch\u00fa \u00fd \u0111\u1ebfn \u0111\u1ea3m b\u1ea3o b\u0103ng th\u00f4ng, trong khi ng\u01b0\u1eddi d\u00f9ng gia \u0111\u00ecnh t\u1eadp trung v\u00e0o c\u00e1c g\u00f3i b\u0103ng th\u00f4ng r\u1ed9ng c\u00e2n b\u1eb1ng t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u su\u1ea5t t\u1ea3i l\u00ean.<\/p>\n\n\n\n<p>Hai \u0111\u01a1n v\u1ecb n\u00e0y t\u01b0\u01a1ng t\u00e1c trong vi\u1ec7c s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y. M\u1ed9t t\u1ec7p phim l\u1edbn 50 GB s\u1ebd t\u1ea3i xu\u1ed1ng nhanh h\u01a1n tr\u00ean k\u1ebft n\u1ed1i 1 Gbps so v\u1edbi k\u1ebft n\u1ed1i 100 Mbps v\u00ec t\u1ed1c \u0111\u1ed9 gigabit x\u00e1c \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9 t\u1ec7p c\u00f3 k\u00edch th\u01b0\u1edbc gigabyte \u0111\u00f3 chuy\u1ec3n qua m\u1ea1ng.<\/p>\n\n\n\n<p>T\u1ed1c \u0111\u1ed9 di chuy\u1ec3n k\u00edch th\u01b0\u1edbc.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"clearing-up-common-misunderstandings\">Gi\u1ea3i Quy\u1ebft Nh\u1eefng Hi\u1ec3u L\u1ea7m Ph\u1ed5 Bi\u1ebfn<\/h2>\n\n\n<p>M\u1ed9t gigabyte l\u1edbn h\u01a1n m\u1ed9t gigabit. M\u1ed9t gigabyte b\u1eb1ng t\u00e1m gigabit.<\/p>\n\n\n\n<p>1 GB kh\u00f4ng gi\u1ed1ng nh\u01b0 1 Gbps. M\u1ed9t c\u00e1i \u0111\u1ec1 c\u1eadp \u0111\u1ebfn l\u01b0u tr\u1eef; c\u00e1i kia \u0111\u1ec1 c\u1eadp \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i.<\/p>\n\n\n\n<p>Khi m\u1ed9t nh\u00e0 cung c\u1ea5p b\u0103ng th\u00f4ng r\u1ed9ng qu\u1ea3ng c\u00e1o \u201cInternet Gigabit,\u201d \u0111i\u1ec1u \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n c\u00f3 th\u1ec3 t\u1ea3i xu\u1ed1ng 1 GB m\u1ed7i gi\u00e2y. N\u00f3 c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n c\u00f3 th\u1ec3 truy\u1ec1n t\u1ea3i l\u00ean t\u1edbi 1 gigabit m\u1ed7i gi\u00e2y, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 125 megabyte m\u1ed7i gi\u00e2y trong \u0111i\u1ec1u ki\u1ec7n b\u0103ng th\u00f4ng l\u00fd t\u01b0\u1edfng.<\/p>\n\n\n\n<p>Hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y l\u00e0m r\u00f5 k\u1ef3 v\u1ecdng cho ph\u00e1t tr\u1ef1c tuy\u1ebfn, ch\u01a1i game, chuy\u1ec3n \u0111\u1ed5i \u0111\u00e1m m\u00e2y v\u00e0 s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt s\u1ed1 h\u00e0ng ng\u00e0y.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"final-thoughts\">Suy ngh\u0129 cu\u1ed1i c\u00f9ng<\/h2>\n\n\n<p>Gigabit v\u00e0 gigabyte nghe c\u00f3 v\u1ebb gi\u1ed1ng nhau, nh\u01b0ng ch\u00fang ph\u1ee5c v\u1ee5 c\u00e1c m\u1ee5c \u0111\u00edch ho\u00e0n to\u00e0n kh\u00e1c nhau trong c\u00f4ng ngh\u1ec7 k\u1ef9 thu\u1eadt s\u1ed1. M\u1ed9t gigabit \u0111o l\u01b0\u1eddng t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u di chuy\u1ec3n qua b\u0103ng th\u00f4ng r\u1ed9ng ho\u1eb7c c\u00e1c \u0111\u01b0\u1eddng thu\u00ea bao. M\u1ed9t gigabyte \u0111o l\u01b0\u1eddng l\u01b0\u1ee3ng d\u1eef li\u1ec7u t\u1ed3n t\u1ea1i trong l\u01b0u tr\u1eef.<\/p>\n\n\n\n<p>S\u1ef1 kh\u00e1c bi\u1ec7t n\u1eb1m \u1edf m\u1ed9t ch\u1eef c\u00e1i v\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 t\u00e1m. Khi b\u1ea1n hi\u1ec3u m\u1ed1i quan h\u1ec7 \u0111\u00f3, c\u00e1c tuy\u00ean b\u1ed1 v\u1ec1 t\u1ed1c \u0111\u1ed9 b\u0103ng th\u00f4ng r\u1ed9ng tr\u1edf n\u00ean h\u1ee3p l\u00fd, th\u1eddi gian t\u1ea3i xu\u1ed1ng v\u00e0 t\u1ea3i l\u00ean tr\u1edf n\u00ean c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n, k\u1ef3 v\u1ecdng b\u0103ng th\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi th\u1ef1c t\u1ebf v\u00e0 quy\u1ebft \u0111\u1ecbnh l\u01b0u tr\u1eef tr\u1edf n\u00ean r\u00f5 r\u00e0ng h\u01a1n.<\/p>\n\n\n\n<p>T\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng bit. <a href=\"https:\/\/securitybriefing.net\/data-privacy\/how-secure-self-storage-supports-data-and-asset-protection\/\">Kho<\/a> \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng byte. V\u00e0 m\u1ed9t byte lu\u00f4n b\u1eb1ng t\u00e1m bit.<\/p>","protected":false},"excerpt":{"rendered":"<p>Gigabit v\u00e0 gigabyte c\u00f3 th\u1ec3 nghe gi\u1ed1ng nhau, nh\u01b0ng ch\u00fang \u0111o l\u01b0\u1eddng hai th\u1ee9 ho\u00e0n to\u00e0n kh\u00e1c nhau: t\u1ed1c \u0111\u1ed9 v\u00e0 l\u01b0u tr\u1eef. H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch r\u00f5 r\u00e0ng s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa gigabit (Gb) v\u00e0 gigabyte (GB), c\u00e1ch t\u1ed1c \u0111\u1ed9 b\u0103ng th\u00f4ng r\u1ed9ng chuy\u1ec3n \u0111\u1ed5i th\u00e0nh t\u1ed1c \u0111\u1ed9 t\u1ea3i xu\u1ed1ng v\u00e0 t\u1ea3i l\u00ean, v\u00e0 t\u1ea1i sao 1 Gbps kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 1 GB m\u1ed7i gi\u00e2y.<\/p>","protected":false},"author":3,"featured_media":5468,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-5465","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Gigabit vs Gigabyte: What\u2019s the Difference? | Security Briefing<\/title>\n<meta name=\"description\" content=\"Confused about gigabit vs gigabyte? 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