電腦裝置頻寬列表

這是一個電腦裝置頻寬列表,列出一般電腦裝置的信道容量,即轉輸數據的(理論上)最高轉送速度,以千位元每秒kbit/s/kbps)、百萬位元每秒Mbit/s/Mbps)、十億位元每秒Gbit/s/Gbps)或兆位元每秒Tbit/s/Tbps)表示。以下每按裝置的功能分組,按信道容量由小至大排列。

為方便非技術人員比較頻寬的大小,每類頻寬都有一個公用單位,例如電話頻寬為 1.2 kbit/s,其中一種舊式數據機的頻寬為 56 kbit/s。使用位元每秒(bit/sec)或位元組每秒(Byte/sec)則視乎一般人慣用哪一個。慣用的單位在列表中以粗體表示。一般來說,并行通訊介面用位元每秒(bit/sec),串行通訊則用位元組每秒(Byte/sec)。至於類似數據機的裝置中,基於用作分隔每一位元組(Byte)的 和 Stop bit,一位元組可能含有超過八個位元(bit),以下的列表已經有考慮這一點。而如果有像乙太網路SATA,與PCI Express等使用到調變技術的通道,列出的頻寬速度則是表示調變後的訊號速度。

很多以下的數據只是例出理論上最快的傳送速度,有很多的因素都會令傳送速度減低。同時以下數據只表示半雙工傳送速度,可能與生產商聲稱的全雙工度有所出入。

附註:以下所有數據單位以公制(以10為基數)表示:

  • 1 Bytes = 8 bits
  • 1 kbit = 1,000 bits
  • 1 kB = 1,000 Bytes
  • 1 MB = 1,000,000 Bytes
  • 1 GB = 1,000,000,000 Bytes
  • 1 TB = 1,000,000,000,000 Bytes
  • 1 PB = 1,000,000,000,000,000 Bytes
  • 1 EB = 1,000,000,000,000,000,000 Bytes
  • 1 ZB = 1,000,000,000,000,000,000,000 Bytes
  • 1 YB = 1,000,000,000,000,000,000,000,000 Bytes

如此類推。

電傳列印機或是聽障人使用的通訊設備

名稱最高速度推出年分
TTY (V.18)45.4545 bit/s6 characters/s[1]
TTY (V.18)50 bit/s6.6 characters/s
NTSC Line 21 Closed Captioning1 kbit/s~100 characters/s

數據機/家用網路連線

需要注意的是這些數據是理論上能提供的最高速度,而實際上會因為像雜訊干擾等因素而會比較慢一些。[2]如果有出現兩個頻寬,前者表示下載頻寬,後者則是表示上傳頻寬。

窄頻

名稱最高速率(位元)最高速率(位元組/s)推出年分
摩斯電碼 0.021 kbit/s[3] 4 characters per second (~40 wpm)[4] 1844
110 鮑率數據機 (Bell 101) 0.11 kbit/s 0.010 kB/s (~10 cps)[5] 1959
300 數據機 (300 鮑率; Bell 103 or V.21) 0.3 kbit/s 0.03 kB/s (~30 cps)[5] 1962[6]
1200 數據機 (600 鮑率; Bell 212A or V.22) 1.2 kbit/s 0.12 kB/s (~120 cps)[5] 1976
1200/75 數據機 (600 鮑率; V.23) 1.2/0.075kbit/s 0.12/0.0075kB/s (~120 cps)[5] 1988[7]
2400 數據機 (600 鮑率; V.22bis) 2.4 kbit/s 0.3 kB/s[5] 1988[7]
4800 數據機 (1600 鮑率; V.27ter) 4.8 kbit/s 0.6 kB/s[5] 1988[7]
9600 數據機 (2400 鮑率; V.32) 9.6 kbit/s 1.2 kB/s[5] 1989[6]
14.4 數據機 (2400 鮑率; V.32bis) 14.4 kbit/s 1.8 kB/s[5] 1991[6]
28.8 數據機 (3200 鮑率; V.34-1994) 28.8 kbit/s 3.6 kB/s[5] 1994
33.6 數據機 (3429 鮑率; V.34-1996/98) 33.6 kbit/s 4.2 kB/s[5] 1996[7]
56k 數據機 (8000/3429 鮑率; V.90) 56.0/33.6kbit/s[8] 7/4.2kB/s 1998
56k 數據機 (8000/8000 鮑率; V.92) 56.0/48.0kbit/s[8] 7/6kB/s 2001
可變硬體壓縮 (variable; V.92/V.44) 56.0–320.0kbit/s[8] 7–40kB/s 2000[7]
ISP-side text/image compression (variable) 56.0–1000.0kbit/s 7–125kB/s 1998[7]
ISDN 基本速率介面 (單/雙 通道) 64/128kbit/s[9] 8/16kB/s 1986[10]
IDSL (dual ISDN + 16 kbit/s data channels) 144 kbit/s 18 kB/s 2000[11]

寬頻

名稱最高速率(位元)最高速率(位元組)推出年分
HDSL ITU G.991.1 a.k.a. DS1 1544 kbit/s 193 kB/s 1998[12]
MSDSL 2000 kbit/s 250 kB/s ?
SDSL 2320 kbit/s 290 kB/s ?
SHDSL ITU G.991.2 5690 kbit/s 711 kB/s 2001
ADSL (G.lite) 1536/512kbit/s 192/64kB/s 1998
ADSL (G.dmt) ITU G.992.1 8192/1024kbit/s 1024/128kB/s 1999
ADSL2 ITU G.992.3 12288/1440kbit/s 1536/180kB/s 2002
ADSL2+ ITU G.992.5 24576/3584kbit/s 3072/448kB/s 2003
DOCSIS v1.0[13] (cable modem) 38/9Mbit/s 4750/1125kB/s 1997
DOCSIS v2.0[14] (cable modem) 38/27Mbit/s 4750/3375kB/s 2001
VDSL ITU G.993.1 52 Mbit/s 7000 kB/s 2001
VDSL2 ITU G.993.2 100 Mbit/s 12500 kB/s 2006
VDSL2 ITU G.993.2 Amendment 1 (11/15) 300 Mbit/s 12500 kB/s 2015
G.fast ITU G.9700 1000 Mbit/s 125000 kB/s 2014
DOCSIS v3.0[15] (cable modem) 160/120Mbit/s 20000/15000kB/s (~200,000,000 wpm) 2006
Uni-DSL 200 Mbit/s 25000 kB/s 2006
BPON (G.983) fiber optic service 622/155Mbit/s 77700/19300kB/s 2005[16]
EPON (802.3ah) fiber optic service 1000/1000Mbit/s 125000/125000kB/s 2008
DOCSIS v3.1[17] (cable modem) 10000/150Mbit/s 1250000/18750kB/s 2015
GPON (G.984) 光纖服務 2488/1244Mbit/s 311000/155500kB/s (~3 billion+ wpm) 2008[18]
10G-PON (G.987) 光纖服務 10000/2500Mbit/s 1250000/312500kB/s (~12 billion+ wpm) 2012[19]

移動式電話介面

這些數據是理論上能提供的最高速度,而實際上會因為像雜訊干擾等因素而會比較慢一些。如果有出現兩個頻寬,前者表示下載頻寬,後者則是表示上傳頻寬。

名稱 下載速率(位元/位元組) 上傳速率(位元/位元組) 推出年分
GSM CSD (2G) 14.4 kbit/s[20] 1.8 kB/s 14.4 kbit/s 1.8 kB/s
HSCSD 57.6 kbit/s 5.4 kB/s 14.4 kbit/s 1.8 kB/s
GPRS (2.5G) 57.6 kbit/s 7.2 kB/s 28.8 kbit/s 3.6 kB/s
WiDEN 100 kbit/s 12.5 kB/s 100 kbit/s 12.5 kB/s
CDMA2000 1×RTT 153 kbit/s 18 kB/s 153 kbit/s 18 kB/s
EDGE (2.75G) (type 1 MS) 236.8 kbit/s 29.6 kB/s 236.8 kbit/s 29.6 kB/s 2002
UMTS 3G 384 kbit/s 48 kB/s 384 kbit/s 48 kB/s
EDGE (type 2 MS) 473.6 kbit/s 59.2 kB/s 473.6 kbit/s 59.2 kB/s
EDGE Evolution (type 1 MS) 1184 kbit/s 148 kB/s 474 kbit/s 59 kB/s
EDGE Evolution (type 2 MS) 1894 kbit/s 237 kB/s 947 kbit/s 118 kB/s
1×EV-DO rev. 0 2457 kbit/s 307.2 kB/s 153 kbit/s 19 kB/s
1×EV-DO rev. A 3.1 Mbit/s 397 kB/s 1.8 Mbit/s 230 kB/s
1×EV-DO rev. B 14.7 Mbit/s 1837 kB/s 5.4 Mbit/s 675 kB/s
HSPA (3.5G) 13.98 Mbit/s 1706 kB/s 5.760 Mbit/s 720 kB/s
4×EV-DO Enhancements (2×2 多輸入多輸出) 34.4 Mbit/s 4.3 MB/s 12.4 Mbit/s 1.55 MB/s
HSPA+ (2×2 多輸入多輸出) 42 Mbit/s 5.25 MB/s 11.5 Mbit/s 1.437 MB/s
15×EV-DO rev. B 73.5 Mbit/s 9.2 MB/s 27 Mbit/s 3.375 MB/s
UMB (2×2 多輸入多輸出) 140 Mbit/s 17.5 MB/s 34 Mbit/s 4.250 MB/s
LTE (2×2 多輸入多輸出) 173 Mbit/s 21.625 MB/s 58 Mbit/s 7.25 MB/s 2004
UMB (4×4 多輸入多輸出) 280 Mbit/s 35 MB/s 68 Mbit/s 8.5 MB/s
EV-DO rev. C 280 Mbit/s 35 MB/s 75 Mbit/s 9 MB/s
LTE (4×4 多輸入多輸出) 326 Mbit/s 40.750 MB/s 86 Mbit/s 10.750 MB/s

廣域網路

這些數據是理論上能提供的最高速度,而實際上會因為像雜訊干擾等因素而會比較慢一些。如果有出現兩個頻寬,前者表示下載頻寬,後者則是表示上傳頻寬。

名稱傳輸速率(位元/位元組)推出年份
DS00.064 Mbit/s0.008 MB/s
G.lite (a.k.a. ADSL Lite)1.536/0.512Mbit/s0.192/0.064MB/s
DS1 / T1 (and ISDN Primary Rate Interface)1.544 Mbit/s0.192 MB/s
E1 (and ISDN Primary Rate Interface)2.048 Mbit/s0.256 MB/s
G.SHDSL2.304 Mbit/s0.288 MB/s
LR-VDSL2 (4 to 5 km [long-]range) (symmetry optional)4 Mbit/s0.512 MB/s
SDSL[21]2.32 Mbit/s0.29 MB/s
T26.312 Mbit/s0.789 MB/s
ADSL[22]8.0/1.024Mbit/s1.0/0.128MB/s
E28.448 Mbit/s1.056 MB/s
ADSL212/3.5Mbit/s1.5/0.448MB/s
Satellite Internet[23]16/1Mbit/s2.0/0.128MB/s
ADSL2+24/3.5Mbit/s3.0/0.448MB/s
E334.368 Mbit/s4.296 MB/s
DOCSIS v1.0 (cable modem)[13]38/9Mbit/s4.75/1.125MB/s
DOCSIS v2.0 (cable modem)[14]38/27Mbit/s4.75/3.37MB/s
DS3 / T3 ('45 Meg')44.736 Mbit/s5.5925 MB/s
STS-1 / OC-1 / STM-051.84 Mbit/s6.48 MB/s
VDSL (symmetry optional)100 Mbit/s12.5 MB/s
OC-3 / STM-1155.52 Mbit/s19.44 MB/s
DOCSIS v3.0 (cable modem)[24]222.48/171.52Mbit/s27.81/21.44MB/s
VDSL2 (symmetry optional)250 Mbit/s31.25 MB/s
T4274.176 Mbit/s34.272 MB/s
T5400.352 Mbit/s50.044 MB/s
OC-9466.56 Mbit/s58.32 MB/s
OC-12 / STM-4622.08 Mbit/s77.76 MB/s
OC-18933.12 Mbit/s116.64 MB/s
OC-241.244 Gbit/s155.5 MB/s
OC-361.900 Gbit/s237.5 MB/s
OC-48 / STM-162.488 Gbit/s311.04 MB/s
OC-964.976 Gbit/s622.08 MB/s
OC-192 / STM-649.953 Gbit/s1.244125 GB/s
10 Gigabit Ethernet WAN PHY9.953 Gbit/s1.244125 GB/s
10 Gigabit Ethernet LAN PHY10.000 Gbit/s1.25 GB/s
OC-25613.271 Gbit/s1.659 GB/s
OC-768 / STM-25639.813 Gbit/s4.976 GB/s
OC-1536 / STM-51279.626 Gbit/s9.953 GB/s
OC-3072 / STM-1024159.252 Gbit/s19.907GB/s

區域網路

由於檔頭與其他因素,承載資料的吞吐量是小於實際資料傳輸量,所以不要將速度與實際資料傳輸率混為一談。「通常實際速度會因為當前流量而降至 1/3-2/3 的速度。而且,如果發生任何傳輸問題而使得實體層發生重新傳送的狀況時,吞吐量也會因而受影響。」[25]

名稱最高速率(位元/位元組)推出年分
LocalTalk230 kbit/s28.8 kB/s1988
Econet800 kbit/s100 kB/s1981
Omninet1 Mbit/s125 kB/s
IBM PC Network2 Mbit/s250 kB/s1985
ARCNET (Standard)2.5 Mbit/s312.5 kB/s1977
Chaosnet (Original)4 Mbit/s3.0 Mbit/s1971
Token Ring (Original)4 Mbit/s500 kB/s1985
Ethernet (10BASE-X)10 Mbit/s1.25 MB/s1980 (1985 IEEE Standard)
Token Ring (Later)16 Mbit/s2 MB/s1989
ARCnet Plus20 Mbit/s2.5 MB/s1992
TNCS100 Mbit/s12.5 MB/s1993?
100VG100 Mbit/s12.5 MB/s1995
Token Ring IEEE 802.5t100 Mbit/s12.5 MB/s
Fast Ethernet (100BASE-X)100 Mbit/s12.5 MB/s1995
FDDI100 Mbit/s12.5 MB/s
MoCA 1.0[26]100 Mbit/s12.5 MB/s
MoCA 1.1[26]175 Mbit/s21.875 MB/s
HomePlug AV200 Mbit/s25 MB/s2005
FireWire (IEEE 1394) 400[27][28]400 Mbit/s50 MB/s1995
HIPPI800 Mbit/s100 MB/s
IEEE 19011000 Mbit/s125 MB/s2010
Token Ring IEEE 802.5v1 Gbit/s125 MB/s2001
Gigabit Ethernet (1000BASE-X)1 Gbit/s125 MB/s1998
Reflective memory or RFM2 (1.25 µs latency)2 Gbit/s235 MB/s1970
Myrinet 20002 Gbit/s250 MB/s
Infiniband SDR 1×[29]2 Gbit/s250 MB/s2001
RapidIO Gen1 1×2.5 Gbit/s312.5 MB/s2000
Quadrics QsNetI3.6 Gbit/s450 MB/s
Infiniband DDR 1×[29]4 Gbit/s500 MB/s2005
RapidIO Gen2 1×5 Gbit/s625 MB/s2008
Infiniband QDR 1×[29]8 Gbit/s1 GB/s2007
Infiniband SDR 4×[29]8 Gbit/s1 GB/s
Quadrics QsNetII8 Gbit/s1 GB/s
RapidIO Gen1 4x10 Gbit/s1.25 GB/s
RapidIO Gen2 2x10 Gbit/s1.25 GB/s2008
10 Gigabit Ethernet (10GBASE-X)10 Gbit/s1.25 GB/s2002-2006
Myri 10G10 Gbit/s1.25 GB/s
Infiniband FDR-10 1×[30]10.31 Gbit/s1.29 GB/s
NUMAlink 312.8 Gbit/s1.6 GB/s2004
Infiniband FDR 1×[30]13.64 Gbit/s1.7 GB/s2011
Infiniband DDR 4×[29]16 Gbit/s2 GB/s2005
RapidIO Gen2 4x20 Gbit/s2.5 GB/s2008
Scalable Coherent Interface (SCI) Dual Channel SCI, x8 PCIe20 Gbit/s2.5 GB/s
Infiniband SDR 12×[29]24 Gbit/s3 GB/s
RapidIO Gen4 1×24.63 Gbit/s3.079 GB/s2016
Infiniband EDR 1×[30]25 Gbit/s3.125 GB/s2014
25 Gigabit Ethernet (25GBASE)25 Gbit/s3.125 GB/s2016
NUMAlink 425.6 Gbit/s3.2 GB/s2004
Infiniband QDR 4×[29]32 Gbit/s4 GB/s2007
RapidIO Gen2 8x40 Gbit/s5 GB/s2008
40 Gigabit Ethernet (40GBASE-X) 4×40 Gbit/s5 GB/s2010
Infiniband FDR-10 4×[30]41.25 Gbit/s5.16 GB/s
Infiniband DDR 12×[29]48 Gbit/s6 GB/s2005
NUMAlink 653.6 Gbit/s6.7 GB/s2012
Infiniband FDR 4×[30]54.54 Gbit/s6.82 GB/s2011
RapidIO Gen2 16×80 Gbit/s10 GB/s2008
Infiniband QDR 12×[29]96 Gbit/s12 GB/s2007
Infiniband EDR 4×[30]100 Gbit/s12.5 GB/s2014
100 Gigabit Ethernet (100GBASE-X) 10×/4×100 Gbit/s12.5 GB/s2010/2018
Omni-Path100 Gbit/s12.5 GB/s2015
Infiniband FDR-10 12×[30]123.75 Gbit/s15.47 GB/s
NUMAlink 7159.52 Gbit/s19.94 GB/s2014
Infiniband FDR 12×[30]163.64 Gbit/s20.45 GB/s2011
Infiniband EDR 12×[30]300 Gbit/s37.5 GB/s2014

無線網路

802.11 都是半雙工形式的網路。在存取點模式,所有的承載資料都要經過 AP。當兩台電腦要用同一台 AP 相互通訊時,所有的承載資料都要二次傳輸:第一次從發出者到 AP,再來從 AP 發送到接收者,這將使實際頻寬折半。

標準最高速率(位元/位元組)推出年分
Classic WaveLAN2 Mbit/s250 kB/s1988
IEEE 802.112 Mbit/s250 kB/s1997
RONJA (full duplex)10 Mbit/s1.25 MB/s2001
IEEE 802.11a54 Mbit/s6.75 MB/s1999
IEEE 802.11b11 Mbit/s1.375 MB/s1999
IEEE 802.11g54 Mbit/s6.75 MB/s2003
IEEE 802.16 (WiMAX)70 Mbit/s8.75 MB/s2004
IEEE 802.11g with Super G by Atheros108 Mbit/s13.5 MB/s2003
IEEE 802.11g with 125 High Speed Mode by Broadcom125 Mbit/s15.625 MB/s2003
IEEE 802.11g with Nitro by Conexant140 Mbit/s17.5 MB/s2003
IEEE 802.11n600 Mbit/s75 MB/s2009
IEEE 802.11ac (maximum theoretical speed)6.8–6.93Gbit/s850–866.25MB/s2012
IEEE 802.11ad (maximum theoretical speed)7.14–7.2Gbit/s892.5–900MB/s2011
IEEE 802.11ax (aka Wi-Fi 6)11 Gbit/s1375 MB/s2019

無線裝置連線

名稱最高速率(位元/位元組)推出年分
ANT20 kbit/s2.5 kB/s
IrDA-Control72 kbit/s9 kB/s
IrDA-SIR115.2 kbit/s14 kB/s
802.15.4 (2.4 GHz)250 kbit/s31.25 kB/s
Bluetooth 1.11 Mbit/s125 kB/s2002
Bluetooth 2.0+EDR3 Mbit/s375 kB/s2004
IrDA-FIR4 Mbit/s500 kB/s
IrDA-VFIR16 Mbit/s2 MB/s
Bluetooth 3.025 Mbit/s3.125 MB/s2009
Bluetooth 4.025 Mbit/s3.125 MB/s2010
Bluetooth 4.1Mbit/sMB/s2013
Bluetooth 4.2Mbit/sMB/s2014
Bluetooth 5.050 Mbit/s6.25 MB/s2016
IrDA-UFIR96 Mbit/s12 MB/s
WUSB-UWB480 Mbit/s60 MB/s
IrDA-Giga-IR1024 Mbit/s128 MB/s

電腦匯流排

名稱傳輸速率(位元/位元組)推出年分
I²C3.4 Mbit/s425 kB/s1992
Apple II series (incl. Apple IIGS) 8-bit/1 MHz8 Mbit/s1 MB/s[31][32]1977
SS-50 Bus 8-bit/1(?) MHz8 Mbit/s1 MB/s
STD-80 8-bit/8 MHz16 Mbit/s2 MB/s
ISA 8-Bit/4.77 MHz19.1 Mbit/s2.39 MB/s1981
STD-80 16-bit/8 MHz32 Mbit/s4 MB/s
Zorro II 16-bit/7.14 MHz[33]42.4 Mbit/s5.3 MB/s1986
ISA 16-Bit/8.33 MHz66.7 Mbit/s8.33 MB/s1984
Europe Card Bus 8-Bit/10 MHz66.7 Mbit/s8.33 MB/s1977
S-100 bus 8-bit/10 MHz80 Mbit/s10 MB/s1976
Serial Peripheral Interface Bus (Up to 100 MHz)100 Mbit/s12.5 MB/s1989
Low Pin Count125 Mbit/s15.63 MB/s [x]2002
STEbus 8-Bit/16 MHz128 Mbit/s16 MB/s1987
C-Bus 16-bit/10 MHz160 Mbit/s20 MB/s[34]1982
HP Precision Bus184 Mbit/s23 MB/s
STD-32 32-bit/8 MHz256 Mbit/s32 MB/s[35]
NESA 32-bit/8 MHz256 Mbit/s32 MB/s
EISA 8-16-32bit/8.33 MHz266.56 Mbit/s33.32 MB/s1988
VME64 32-64bit400 Mbit/s40 MB/s1981
NuBus 10 MHz400 Mbit/s40 MB/s1987
DEC TURBOchannel 32-bit/12.5 MHz400 Mbit/s50 MB/s
MCA 16-32bit/10 MHz660 Mbit/s66 MB/s1987
NuBus90 20 MHz800 Mbit/s80 MB/s1991
APbus 32-bit/25(?) MHz800 Mbit/s100 MB/s[36]
Sbus 32-bit/25 MHz800 Mbit/s100 MB/s1989
DEC TURBOchannel 32-bit/25 MHz800 Mbit/s100 MB/s
Local Bus 98 32-bit/33 MHz1056 Mbit/s132 MB/s
VESA Local Bus (VLB) 32-bit/33 MHz1067 Mbit/s133.33 MB/s1992
PCI 32-bit/33 MHz1067 Mbit/s133.33 MB/s1993
HP GSC-1X1136 Mbit/s142 MB/s
Zorro III 32-bit/async (eq. 37.5 MHz)[37][38]1200 Mbit/s150 MB/s[39]1990
VESA Local Bus (VLB) 32-bit/40 MHz1280 Mbit/s160 MB/s1992
Sbus 64-bit/25 MHz1.6 Gbit/s200 MB/s1995
PCI Express 1.0 (×1 link)[40]2.5 Gbit/s250 MB/s [z]2004
HP GSC-2X2.048 Gbit/s256 MB/s
PCI 64-bit/33 MHz2.133 Gbit/s266.7 MB/s1993
PCI 32-bit/66 MHz2.133 Gbit/s266.7 MB/s1995
AGP2.133 Gbit/s266.7 MB/s1997
RapidIO Gen1 1×2.5 Gbit/s312.5 MB/s
HIO bus2.560 Gbit/s320 MB/s
GIO64 64-bit/40 MHz2.560 Gbit/s320 MB/s
PCI Express 1.0 (×2 link)[40]5 Gbit/s500 MB/s [z]2011
PCI Express 2.0 (×1 link)[41]5 Gbit/s500 MB/s [z]2007
AGP 2×4.266 Gbit/s533.3 MB/s1997
PCI 64-bit/66 MHz4.266 Gbit/s533.3 MB/s
PCI-X DDR 16-bit4.266 Gbit/s533.3 MB/s
RapidIO Gen2 1×5 Gbit/s625 MB/s
PCI 64-bit/100 MHz6.4 Gbit/s800 MB/s
PCI Express 3.0 (×1 link)[42]8 Gbit/s 984.6 MB/s [y]2011
Unified Media Interface (UMI) (×4 link)10 Gbit/s1 GB/s [z]2011
Direct Media Interface (DMI) (×4 link)10 Gbit/s1 GB/s [z]2004
Enterprise Southbridge Interface (ESI)8 Gbit/s1 GB/s
PCI Express 1.0 (×4 link)[40]10 Gbit/s1 GB/s [z]2004
AGP 4×8.533 Gbit/s1.067 GB/s1998
PCI-X 1338.533 Gbit/s1.067 GB/s
PCI-X QDR 16-bit8.533 Gbit/s1.067 GB/s
InfiniBand single 4×[29]8 Gbit/s1 GB/s
RapidIO Gen1 4×10 Gbit/s1.25 GB/s
RapidIO Gen2 2×10 Gbit/s1.25 GB/s
UPA15.360 Gbit/s1.920 GB/s
Unified Media Interface 2.0 (UMI 2.0; ×4 link)20 Gbit/s2 GB/s [z]2012
Direct Media Interface 2.0 (DMI 2.0; ×4 link)20 Gbit/s2 GB/s [z]2011
PCI Express 1.0 (×8 link)[40]20 Gbit/s2 GB/s [z]2004
PCI Express 2.0 (×4 link)[41]20 Gbit/s2 GB/s [z]2007
AGP 8×17.066 Gbit/s2.133 GB/s2002
PCI-X DDR17.066 Gbit/s2.133 GB/s
RapidIO Gen2 4×20 Gbit/s2.5 GB/s
Sun JBus (200 MHz)20.48 Gbit/s2.56 GB/s2003
HyperTransport (800 MHz, 16-pair)25.6 Gbit/s3.2 GB/s2001
PCI Express 3.0 (×4 link)[42]32 Gbit/s3.938 GB/s [y]2011
HyperTransport (1 GHz, 16-pair)32 Gbit/s4 GB/s
PCI Express 1.0 (×16 link)[40]40 Gbit/s4 GB/s [z]2004
PCI Express 2.0 (×8 link)[41]40 Gbit/s4 GB/s [z]2007
PCI-X QDR34.133 Gbit/s4.266 GB/s
AGP 8× 64-bit34.133 Gbit/s4.266 GB/s
RapidIO Gen2 8x40 Gbit/s5 GB/s
Direct Media Interface 3.0 (DMI 3.0; ×4 link)40 Gbit/s4 GB/s [z]2015
PCI Express 3.0 (×8 link)[42]64 Gbit/s7.877 GB/s [y]2011
PCI Express 1.0 (×32 link)[40]80 Gbit/s8 GB/s [z]2001
PCI Express 2.0 (×16 link)[41]80 Gbit/s8 GB/s [z]2007
RapidIO Gen2 16x80 Gbit/s10 GB/s
PCI Express 3.0 (×16 link)[42]128 Gbit/s15.75 GB/s [y]2011
PCI Express 2.0 (×32 link)[41]160 Gbit/s16 GB/s [z]2007
QPI (4.80GT/s, 2.40 GHz)153.6 Gbit/s19.2 GB/s
HyperTransport 2.0 (1.4 GHz, 32-pair)179.2 Gbit/s22.4 GB/s2004
QPI (5.86GT/s, 2.93 GHz)187.52 Gbit/s23.44 GB/s
QPI (6.40GT/s, 3.20 GHz)204.8 Gbit/s25.6 GB/s
QPI (7.2GT/s, 3.6 GHz)230.4 Gbit/s28.8 GB/s2012
PCI Express 3.0 (×32 link)[42]256 Gbit/s31.51 GB/s [y]2011
QPI (8.0GT/s, 4.0 GHz)256.0 Gbit/s32.0 GB/s2012
QPI (9.6GT/s, 4.8 GHz)307.2 Gbit/s38.4 GB/s2014
HyperTransport 3.0 (2.6 GHz, 32-pair)332.8 Gbit/s41.6 GB/s2006
HyperTransport 3.1 (3.2 GHz, 32-pair)409.6 Gbit/s51.2 GB/s2008
NVLink640 Gbit/s80 GB/s2016
NVLink 2.0 2400 Gbit/s 300 GB/s 2017
Infinity Fabric (512bit * 2s * 2666Mhz)[43]2.729984 Tbit/s341.248 GB/s2017
Infinity Fabric (Max theoretical)4.096 Tbit/s512 GB/s2017

筆記型電腦的外部匯流排

名稱最高速率(位元/位元組)推出年分
PC Card 16-bit 255 ns byte mode31.36 Mbit/s3.92 MB/s
PC Card 16-bit 255 ns word mode62.72 Mbit/s7.84 MB/s
PC Card 16-bit 100 ns byte mode80 Mbit/s10 MB/s
PC Card 16-bit 100 ns word mode160 Mbit/s20 MB/s
PC Card 32-bit (CardBus) byte mode267 Mbit/s33.33 MB/s
ExpressCard 1.2 USB 2.0 mode480 Mbit/s60 MB/s
PC Card 32-bit (CardBus) word mode533 Mbit/s66.66 MB/s
PC Card 32-bit (CardBus) doubleword mode1067 Mbit/s133.33 MB/s
ExpressCard 1.2 PCI Express mode2500 Mbit/s250 MB/s
ExpressCard 2.0 USB 3.0 mode4800 Mbit/s600 MB/s
ExpressCard 2.0 PCI Express mode5000 Mbit/s625 MB/s

電腦儲存設備

名稱最高速率(位元/位元組)推出年分
Teletype Model 33 paper tape (70 bit/s, 10 ASCII characters per second)0.000070 Mbit/s0.000010 MB/s1963
TRS-80 Model 1 Level 1 BASIC cassette tape interface (250 bit/s )0.00025 Mbit/s0.000032 MB/s1977
Apple 2 cassette tape interface (1500 bit/s)0.0015 Mbit/s0.0002 MB/s1977
Single Density 8-inch FM Floppy Disk Controller (160 KB)0.250 Mbit/s0.031 MB/s1973
Double Density 5.25-inch MFM Floppy Disk Controller (360 KB)0.500 Mbit/s0.062 MB/s1978
High Density MFM Floppy Disk Controller (1.2 MB/1.44 MB)1.0 Mbit/s0.124 MB/s1984
CD Controller (1×)1.171 Mbit/s0.146 MB/s1988
MFM hard disk5 Mbit/s0.625 MB/s1980
RLL hard disk7.5 Mbit/s0.937 MB/s
DVD Controller (1×)11.1 Mbit/s1.32 MB/s
ESDI24 Mbit/s3 MB/s
ATA PIO Mode 026.4 Mbit/s3.3 MB/s1986
HD DVD Controller (1×)36 Mbit/s4.5 MB/s
Blu-ray Controller (1×)36 Mbit/s4.5 MB/s
SCSI (Narrow SCSI) (5 MHz)[44]40 Mbit/s5 MB/s1986
ATA PIO Mode 141.6 Mbit/s5.2 MB/s1994
ATA PIO Mode 266.4 Mbit/s8.3 MB/s1994
Fast SCSI (8 bits/10 MHz)80 Mbit/s10 MB/s
ATA PIO Mode 388.8 Mbit/s11.1 MB/s1996
AoE over Fast Ethernet[45]100 Mbit/s11.9 MB/s2009
iSCSI over Fast Ethernet[46]100 Mbit/s11.9 MB/s2004
ATA PIO Mode 4133.3 Mbit/s16.7 MB/s1996
Fast Wide SCSI (16 bits/10 MHz)160 Mbit/s20 MB/s
Ultra SCSI (Fast-20 SCSI) (8 bits/20 MHz)160 Mbit/s20 MB/s
Ultra DMA ATA 33264 Mbit/s33 MB/s1998
Ultra Wide SCSI (16 bits/20 MHz)320 Mbit/s40 MB/s
Ultra-2 SCSI 40 (Fast-40 SCSI) (8 bits/40 MHz)320 Mbit/s40 MB/s
Ultra DMA ATA 66533.6 Mbit/s66.7 MB/s2000
Blu-ray Controller (16×)576 Mbit/s72 MB/s
Ultra-2 wide SCSI (16 bits/40 MHz)640 Mbit/s80 MB/s
Serial Storage Architecture SSA640 Mbit/s80 MB/s1990
Ultra DMA ATA 100800 Mbit/s100 MB/s2002
Fibre Channel 1GFC (1.0625 GHz)[47]850 Mbit/s103.23 MB/s1997
AoE over gigabit Ethernet, jumbo frames[48]1000 Mbit/s124.2 MB/s2009
iSCSI over gigabit Ethernet, jumbo frames[49]1000 Mbit/s123.9 MB/s2004
Ultra DMA ATA 1331064 Mbit/s133 MB/s2005
Ultra-3 SCSI (Ultra 160 SCSI; Fast-80 Wide SCSI) (16 bits/40 MHz DDR)1280 Mbit/s160 MB/s
SATA revision 1.0[50]1500 Mbit/s150 MB/s [a]2003
Fibre Channel 2GFC (2.125 GHz)[47]1700 Mbit/s206.5 MB/s2001
Ultra-320 SCSI (Ultra4 SCSI) (16 bits/80 MHz DDR)2560 Mbit/s320 MB/s
Serial Attached SCSI (SAS)[50]3000 Mbit/s300 MB/s [a]2004
SATA Revision 2.0[50]3000 Mbit/s300 MB/s [a]2004
Fibre Channel 4GFC (4.25 GHz)[47]3400 Mbit/s413 MB/s2004
Serial Attached SCSI (SAS) 2[50]6000 Mbit/s600 MB/s [a]2009
SATA Revision 3.0[50]6000 Mbit/s600 MB/s [a]2008
Fibre Channel 8GFC (8.50 GHz)[47]6800 Mbit/s826 MB/s2005
Fibre Channel 16GFC (14.025 GHz)[47]13600 Mbit/s1652 MB/s [b]2011
Serial Attached SCSI (SAS) 3[50]12000 Mbit/s1200 MB/s2013
AoE over 10GbE[48]10000 Mbit/s1242 MB/s2009
iSCSI over 10GbE[49]10000 Mbit/s1239 MB/s2004
FCoE over 10GbE[51]10000 Mbit/s1206 MB/s2009
SATA revision 3.2 - SATA Express16000 Mbit/s2000 MB/s2013
Serial Attached SCSI (SAS) 4 (preliminary specification)22500 Mbit/s2400 MB/s [c]tba
Fibre Channel 32GFC (28.05 GHz)[47]26424 Mbit/s3303 MB/s [b]2016
NVMe over M.2 or U.2 (using PCI Express 3.0 ×4 link)[42]32000 Mbit/s3938 MB/s2013
iSCSI over InfiniBand32000 Mbit/s4000 MB/s2007
iSCSI over 100G Ethernet[49]100000 Mbit/s12392 MB/s2010
FCoE over 100G Ethernet[51]100000 Mbit/s12064 MB/s2010

電腦外部匯流排

名稱最高速率(位元/位元組)推出年分
Apple Desktop Bus10.0 kbit/s1.25 kB/s1986
PS/2 port12.0 kbit/s1.5 kB/s1987
Serial MIDI31.25 kbit/s3.9 kB/s1983
CBM Bus max[52][53]41.6 kbit/s5.1 kB/s1981
Serial RS-232 max230.4 kbit/s28.8 kB/s1962
Serial DMX512A250.0 kbit/s31.25 kB/s1998
Parallel (Centronics)1 Mbit/s125 kB/s1970 (standardised 1994)
Serial 16550 UART max1.5 Mbit/s187.5 kB/s
USB 1.0 low speed1.536 Mbit/s192 kB/s1996
Serial UART max2.7648 Mbit/s345.6 kB/s
GPIB/HPIB (IEEE-488.1) IEEE-488 max.8 Mbit/s1 MB/sLate 1960s (standardised 1976)
Serial EIA-422 max.10 Mbit/s1.25 MB/s
USB 1.0 full speed12 Mbit/s1.5 MB/s1996
Parallel (Centronics) EPP 2 MHz16 Mbit/s2 MB/s1992
Serial EIA-485 max.35 Mbit/s4.375 MB/s
GPIB/HPIB (IEEE-488.1-2003) IEEE-488 max.64 Mbit/s8 MB/s
FireWire (IEEE 1394) 10098.304 Mbit/s12.288 MB/s1995
FireWire (IEEE 1394) 200196.608 Mbit/s24.576 MB/s1995
FireWire (IEEE 1394) 400393.216 Mbit/s49.152 MB/s1995
USB 2.0 high speed480 Mbit/s60 MB/s2000
FireWire (IEEE 1394b) 800[54]786.432 Mbit/s98.304 MB/s2002
Fibre Channel 1 Gb SCSI1062.5 Mbit/s100 MB/s
FireWire (IEEE 1394b) 1600[54]1.573 Gbit/s196.6 MB/s2007
Fibre Channel 2 Gb SCSI2125 Mbit/s200 MB/s
eSATA (SATA 300)3 Gbit/s300 MB/s2004
CoaXPress Base (up and down bidirectional link)3.125 Gbit/s + 20.833 Mbit/s390 MB/s2009
FireWire (IEEE 1394b) 3200[54]3145.7 Mbit/s393.216 MB/s2007
External PCI Express 2.0 ×14 Gbit/s500 MB/s
Fibre Channel 4 Gb SCSI4.25 Gbit/s531.25 MB/s
USB 3.0 SuperSpeed5 Gbit/s625 MB/s2010
eSATA (SATA 600)6 Gbit/s600 MB/s2011
CoaXPress full (up and down bidirectional link)6.25 Gbit/s + 20.833 Mbit/s781 MB/s2009
External PCI Express 2.0 ×28 Gbit/s1000 MB/s
USB 3.1 SuperSpeed+10 Gbit/s1250 MB/s2013
Thunderbolt2 × 10 Gbit/s2 × 1250 MB/s2011
External PCI Express 2.0 ×416 Gbit/s2000 MB/s
Thunderbolt 220 Gbit/s2.5 GB/s2013
USB 3.2 SuperSpeed+[55] (aka USB 3.2 Gen 2×2)20 Gbit/s2.424 GB/s2017
External PCI Express 2.0 ×832 Gbit/s4 GB/s
Thunderbolt 340 Gbit/s5 GB/s2015
USB4[56]40 Gbit/s5 GB/s2019
External PCI Express 2.0 ×1664 Gbit/s8 GB/s

MAC 到 PHY 的電腦匯流排

名稱最高速率(位元/位元組)推出年分
Media Independent Interface (MII; 4 lanes)100 Mbit/s12.5 MB/s
Reduced MII (RMII; 2 lanes)100 Mbit/s12.5 MB/s
Serial MII (SMII; 1 lane)100 Mbit/s12.5 MB/s
Gigabit MII (GMII; 8 lanes)1.0 Gbit/s125 MB/s
Reduced gigabit/s MII (RGMII; 4 lanes)1.0 Gbit/s125 MB/s
Serial gigabit/s MII (SGMII; 2 lanes)1.25 Gbit/s125 MB/s
Reduced serial gigabit/s MII (RSGMII; 2 lanes)2.5 Gbit/s250 MB/s
Reduced serial gigabit/s MII plus (RSGMII-PLUS; 2 lanes)5.0 Gbit/s500 MB/s
Quad serial gigabit/s MII (QSGMII; 2 lanes)5.0 Gbit/s500 MB/s
10 gigabit/s MII (XGMII; 32 lanes)10.0 Gbit/s1.25 GB/s
XGMII attachment unit interface (XAUI; 4 lanes)10.0 Gbit/s1.25 GB/s
40 gigabit/s MII (XLGMII)40.0 Gbit/s5 GB/s
100 gigabit/s MII (CGMII)100.0 Gbit/s12.5 GB/s2008

PHY 到 XPDR 的電腦匯流排

名稱最高速率(位元/位元組)推出年分
10 gigabit/s 16-bit interface (XSBI; 16 lanes)0.995 Gbit/s0.124 GB/s

記憶體匯流排

雙通道頻寬是理論上能夠達到的最大頻寬值,並不表示實際操作會有相等的效能提升。在許多方面,雙通道(2 倍頻寬)的效能與單通道的效能相近。


記憶體類型晶片規格記憶體頻率記憶體速率記憶體頻寬(位元/位元組)
FPM DRAM45 ns22 MHz0.177 GT/s1.416 Gbit/s177 MB/s
EDO DRAM30 ns33 MHz0.266 GT/s2.128 Gbit/s266 MB/s
PC-66 SDR SDRAM10/15 ns66 MHz0.066 GT/s4.264 Gbit/s533 MB/s
PC-100 SDR SDRAM8 ns100 MHz0.100 GT/s6.4 Gbit/s800 MB/s
PC-133 SDR SDRAM7/7.5 ns133 MHz0.133 GT/s8.528 Gbit/s1.066 GB/s
RIMM-1200 RDRAMPC-600300 MHz0.600 GT/s9.6 Gbit/s1.2 GB/s
RIMM-1400 RDRAMPC-700350 MHz0.700 GT/s11.2 Gbit/s1.4 GB/s
RIMM-1600 RDRAMPC-800400 MHz0.800 GT/s12.8 Gbit/s1.6 GB/s
PC-1600 DDR SDRAMDDR-200100 MHz0.200 GT/s12.8 Gbit/s1.6 GB/s
RIMM-2100 RDRAMPC-1066533 MHz1.066 GT/s17.034 Gbit/s2.133 GB/s
PC-2100 DDR SDRAMDDR-266133 MHz0.266 GT/s17.034 Gbit/s2.133 GB/s
PC-2700 DDR SDRAMDDR-333166 MHz0.333 GT/s21.336 Gbit/s2.667 GB/s
PC-3200 DDR SDRAMDDR-400200 MHz0.400 GT/s25.6 Gbit/s3.2 GB/s
PC2-3200 DDR2 SDRAMDDR2-400200 MHz0.400 GT/s25.6 Gbit/s3.2 GB/s
PC-3500 DDR SDRAMDDR-433216 MHz0.433 GT/s27.728 Gbit/s3.466 GB/s
PC-3700 DDR SDRAMDDR-466233 MHz0.466 GT/s29.864 Gbit/s3.733 GB/s
PC-4000 DDR SDRAMDDR-500250 MHz0.500 GT/s32 Gbit/s4 GB/s
PC-4200 DDR SDRAMDDR-533266 MHz0.533 GT/s34.128 Gbit/s4.266 GB/s
PC2-4200 DDR2 SDRAMDDR2-533266 MHz0.533 GT/s34.128 Gbit/s4.266 GB/s
PC-4400 DDR SDRAMDDR-550275 MHz0.550 GT/s35.2 Gbit/s4.4 GB/s
PC-4800 DDR SDRAMDDR-600300 MHz0.600 GT/s38.4 Gbit/s4.8 GB/s
PC2-5300 DDR2 SDRAMDDR2-667333 MHz0.667 GT/s42.664 Gbit/s5.333 GB/s
PC2-6000 DDR2 SDRAMDDR2-750375 MHz0.750 GT/s48 Gbit/s6 GB/s
PC2-6400 DDR2 SDRAMDDR2-800400 MHz0.800 GT/s51.2 Gbit/s6.4 GB/s
PC3-6400 DDR3 SDRAMDDR3-800400 MHz0.800 GT/s51.2 Gbit/s6.4 GB/s
PC2-7200 DDR2 SDRAMDDR2-900450 MHz0.900 GT/s57.6 Gbit/s7.2 GB/s
PC2-8000 DDR2 SDRAMDDR2-1000500 MHz1 GT/s64 Gbit/s8 GB/s
PC2-8500 DDR2 SDRAMDDR2-1066533 MHz1.066 GT/s68 Gbit/s8.5 GB/s
PC3-8500 DDR3 SDRAMDDR3-1066533 MHz1.066 GT/s68 Gbit/s8.5 GB/s
PC2-8800 DDR2 SDRAMDDR2-1100550 MHz1.1 GT/s70.4 Gbit/s8.8 GB/s
PC2-8888 DDR2 SDRAMDDR2-1100550 MHz1.111 GT/s71.104 Gbit/s8.888 GB/s
PC2-9136 DDR2 SDRAMDDR2-1142571 MHz1.142 GT/s73.088 Gbit/s9.136 GB/s
PC2-9200 DDR2 SDRAMDDR2-1150575 MHz1.15 GT/s73.6 Gbit/s9.2 GB/s
PC2-9600 DDR2 SDRAMDDR2-1200600 MHz1.2 GT/s76.8 Gbit/s9.6 GB/s
PC2-10000 DDR2 SDRAMDDR2-1250625 MHz1.25 GT/s80 Gbit/s10 GB/s
PC3-10600 DDR3 SDRAMDDR3-1333667 MHz1.333 GT/s85.336 Gbit/s10.667 GB/s
PC3-11000 DDR3 SDRAMDDR3-1375688 MHz1.375 GT/s88 Gbit/s11 GB/s
PC3-12800 DDR3 SDRAMDDR3-1600800 MHz1.6 GT/s102.4 Gbit/s12.8 GB/s
PC3-13000 DDR3 SDRAMDDR3-1625813 MHz1.625 GT/s104 Gbit/s13 GB/s
PC3-14400 DDR3 SDRAMDDR3-1800900 MHz1.8 GT/s115.2 Gbit/s14.4 GB/s
PC3-14900 DDR3 SDRAMDDR3-1866933 MHz1.866 GT/s119.464 Gbit/s14.933 GB/s
PC3-15000 DDR3 SDRAMDDR3-1866933 MHz1.866 GT/s119.464 Gbit/s14.933 GB/s
PC3-16000 DDR3 SDRAMDDR3-20001000 MHz2 GT/s128 Gbit/s16 GB/s
PC3-17000 DDR3 SDRAMDDR3-21331067 MHz2.133 GT/s136.528 Gbit/s17.066 GB/s
PC4-17000 DDR4 SDRAMDDR4-21331067 MHz2.133 GT/s136.5 Gbit/s17 GB/s[57]
PC4-17600 DDR3 SDRAMDDR4-22001100 MHz2.2 GT/s140.8 Gbit/s17.6 GB/s
PC4-19200 DDR3 SDRAMDDR4-24001200 MHz2.4 GT/s153.6 Gbit/s19.2 GB/s
PC4-21300 DDR3 SDRAMDDR4-26661333 MHz2.666 GT/s170.4 Gbit/s21.3 GB/s
PC4-24000 DDR3 SDRAMDDR4-30001500 MHz3.0 GT/s192 Gbit/s24 GB/s
PC4-25600 DDR4 SDRAMDDR4-32001600 MHz3.2 GT/s204.8 Gbit/s25.6 GB/s

參見

註解

  1. TTY uses a Baudot code, not ASCII. This uses 5 bits per character instead of 8, plus one start and approx. 1.5 stop bits (7.5 total bits per character sent).
  2. . [2008-02-06]. (原始内容存档于2014-01-27).
  3. Morse can transport 26 alphabetic, 10 numeric and one interword gap plaintext symbols. Transmitting 37 different symbols requires 5.21 bits of information (25.21=37). A skilled operator encoding the benchmark "PARIS" plus an interword gap (equal to 31.26 bits) at 40 wpm is operating at an equivalence of 20.84 bit/s.
  4. WPM, or Words Per Minute, is the number of times the word "PARIS" is transferred per minute. Strictly speaking the code is quinary, accounting inter-element, inter-letter, and inter-word gaps, yielding 50 binary elements (bits) per one word. Counting characters, including inter-word gaps, gives six characters per word or 240 characters per minute, and finally four characters per second.
  5. All modems are wrongly assumed to be in serial operation with 1 start bit, 8 data bits, no parity, and 1 stop bit (2 stop bits for 110-鮑率 modems). Therefore, currently modems are wrongly calculated with transmission of 10 bits per 8-bit byte (11 bits for 110-鮑率 modems). Although the serial port is nearly always used to connect a modem and has equivalent data rates, the protocols, modulations and error correction differ completely.
  6. , Daxal Communications, 2003-12-16 [2009-04-16], (原始内容存档于2008-10-08)
  7. . ITU. [2008-02-06]. (原始内容存档于2014-01-27).
  8. 56K modems: V.90 and V.92 have just 5% overhead for the protocol signalling. The maximum capacity can only be achieved when the upstream (service provider) end of the connection is digital, i.e. a DS0 channel.
  9. Note that effective aggregate bandwidth for an ISDN installation is typically higher than the rates shown for a single channel due to the use of multiple channels. A basic rate interface (BRI) provides two "B" channels and one "D" channel. Each B channel provides 64 kBit/s bandwidth and the "D" channel carries signaling (call setup) information. B channels can be bonded to provide a 128 kbit/s data rate. Primary rate interfaces (PRI) vary depending on whether the region uses E1 (Europe, world) or T1 (North America) bearers. In E1 regions, the PRI carries 30 B-channels and one D-channel; in T1 regions the PRI carries 23 B-channels and one D-channel. The D-channel has different bandwidth on the two interfaces.
  10. Massey, David, , Telephone Tribute, 2006-07-04 [2009-04-16]
  11. Adam.com.au
  12. . ITU.
  13. DOCSIS 1.0 存檔,存档日期2006-06-13. includes technology which first became available around 1995–1996, and has since become very widely deployed. DOCSIS 1.1 存檔,存档日期2006-06-13. introduces some security improvements and Quality of Service (QoS).
  14. DOCSIS 2.0 存檔,存档日期2009-09-04. specifications provide increased upstream throughput for symmetric services.
  15. DOCSIS 3.0 存檔,存档日期2006-06-19. includes support for channel bonding and IPv6.
  16. . ITU.
  17. DOCSIS 3.1 is currently in development by the Cablelabs Consortium
  18. . ITU.
  19. . ITU.
  20. Most operators only support up to 9600bit/s
  21. SDSL is available in various speeds.
  22. ADSL connections will vary in throughput from 64 kbit/s to several Mbit/s depending on configuration. Most are commonly below 2 Mbit/s. Some ADSL and SDSL connections have a higher digital bandwidth than T1 but their rate is not guaranteed, and will drop when the system gets overloaded, whereas the T1 type connections are usually guaranteed and have no contention ratios.
  23. Satellite internet may have a high bandwidth but also has a high latency due to the distance between the modem, satellite and hub. One-way satellite connections exist where all the downstream traffic is handled by satellite and the upstream traffic by land-based connections such as 56K modems and ISDN.
  24. Ethernet throughput
  25. "MoCA 1.1 improves throughput" over coaxial cable to 175 Mbits/s versus the 100 Mbits/s provided by the MoCA 1.0 specification.
  26. FireWire natively supports TCP/IP, and is often used at an alternative to Ethernet when connecting 2 nodes. Tweaktown.com
  27. Data rate comparison between FW and Giganet shows that FW's lower overhead has nearly the same throughput as Giganet. Unibrain.com 存檔,存档日期2008-02-07.
  28. InfiniBand SDR, DDR and QDR use an 8b/10b encoding scheme.
  29. InfiniBand FDR-10, FDR and EDR use a 64b/66b encoding scheme.
  30. Mac History
  31. VAW: Apple IIgs Specs 存檔,存档日期2011-01-10.
  32. The Zorro II bus use 4 clocks per 16-Bit of data transferred. See the Zorro III technical specification 页面存档备份,存于 for more information.
  33. C-Bus, Bus used in early NEC PC-9800 series and compatible systems
  34. STD 32 Bus Specification and Designer's Guide
  35. Local Area Networks Newsletter by Paul Polishuk, September 1992, Page 7 (APbus used in Sony NeWS and NEC UP4800 workstations and NEC EWS4800 servers after VMEbus and before switch to PCI)
  36. Dave Haynie, designer of the Zorro III bus, claims in this 页面存档备份,存于 posting that the theoretical max of the Zorro III bus can be derived by the timing information given in chapter 5 of the Zorro III technical specification 页面存档备份,存于.
  37. Dave Haynie, designer of the Zorro III bus, states in this 页面存档备份,存于 posting that Zorro III is an asynchronous bus and therefore does not have a classical MHz rating. A maximum theoretical MHz value may be derived by examining timing constraints detailed in the Zorro III technical specification 页面存档备份,存于, which should yield about 37.5 MHz. No existing implementation performs to this level.
  38. Dave Haynie, designer of the Zorro III bus, claims in this 页面存档备份,存于 posting that Zorro III has a max burst rate of 150 MB/s.
  39. Note that PCI Express 1.0/2.0 lanes use an 8b/10b encoding scheme.
  40. PCIe 2.0 effectively doubles the bus standard's bandwidth from 2.5 GT/s to 5 GT/s
  41. PCIe 3.0 increases the bandwidth from 5 GT/s to 8 GT/s and switches to 128b-130b encoding
  42. https://www.amd.com/en/products/cpu/amd-epyc-7601
  43. SCSI-1, SCSI-2 and SCSI-3 are signaling protocols and do not explicitly refer to a specific rate. Narrow SCSI exists using SCSI-1 and SCSI-2. Higher rates use SCSI-2 or later.
  44. minimum overhead is 38 byte L1/L2, 14 byte AoE per 1024 byte user data
  45. minimum overhead is 38 byte L1/L2, 20 byte IP, 20 byte TCP per 1460 byte user data
  46. Fibre Channel 1GFC, 2GFC, 4GFC use an 8b/10b encoding scheme. Fibre Channel 10GFC, which uses a 64B/66B encoding scheme, is not compatible with 1GFC, 2GFC and 4GFC, and is used only to interconnect switches.
  47. minimum overhead is 38 byte L1/L2, 14 byte AoE per 8192 byte user data
  48. minimum overhead is 38 byte L1/L2, 20 byte IP, 20 byte TCP per 8960 byte user data
  49. SATA and SAS use an 8b/10b encoding scheme.
  50. minimum overhead is 38 byte L1/L2, 36 byte FC per 2048 byte user data
  51. proprietary serial version of IEEE-488 by Commodore International
  52. . [2017-05-16]. (原始内容存档于2011-07-19).
  53. FireWire (IEEE 1394b) uses an 8b/10b encoding scheme.
  54. Dent, Steve. . Engadget. 26 July 2017 [26 July 2017].
  55. Shilov, Anton. . www.anandtech.com. [2019-06-26].
  56. Scott Mueller. Upgrading and Repairing PCs. Que Publishing. Mar 7, 2013. Table 6.11: JEDEC Standard DDR4 Module (284-PIN DIMM) Speeds and Transfer Rate

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