這是一個電腦裝置頻寬列表，列出一般電腦裝置的通道容量，即轉輸資料的（理論上）最高轉送速度，以千位元每秒（kbitskbps）、百萬位元每秒（MbitsMbps）、十億位元每秒（GbitsGbps）或兆位元每秒（TbitsTbps）表示。以下每按裝置的功能分組，按通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 12 kbits，其中一種舊式資料機的頻寬為 56 kbits。使用位元每秒（bitsec）或位元組每秒（Bytesec）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，並行通訊介面用位元每秒（bitsec），序列通訊則用位元組每秒（Bytesec）。至於類似資料機的裝置中，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。 很多以下的資料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。同時以下資料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。 __TOC__ 附註：以下所有資料單位以公制（以 10 為基數）表示： 1 Bytes 8 bits 1 kbit 1000 bits 1 kB 1000 Bytes 1 MB 1000000 Bytes 1 GB 1000000000 Bytes 1 TB 1000000000000 Bytes 1 PB 1000000000000000 Bytes 1 EB 1000000000000000000 Bytes 1 ZB 1000000000000000000000 Bytes 1 YB 1000000000000000000000000 Bytes 如此類推。 電傳列印機或是聽障人使用的通訊裝置 名稱 最高速度 最高速度 推出年分 TTY V18 6 characterssTTY uses a Baudot code not ASCII This uses 5 bits per character instead of 8 plus one start and approx 15 stop bits 75 total bits per character sent TTY V18 66 characterss NTSC Line 21 Closed Captioning 100 characterss 資料機 家用網路連線 需要注意的是這些資料是理論上能提供的最高速度，而實際上會因為像雜訊幹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。 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 Morse can transport 26 alphabetic 10 numeric and one interword gap plaintext symbols Transmitting 37 different symbols requires 521 bits of information 252137 A skilled operator encoding the benchmark PARIS plus an interword gap equal to 3126 bits at 40 wpm is operating at an equivalence of 2084 bits WPM or Words Per Minute is the number of times the word PARIS is transferred per minute Strictly speaking the code is quinary accounting interelement interletter and interword gaps yielding 50 binary elements bits per one word Counting characters including interword gaps gives six characters per word or 240 characters per minute and finally four characters per second 1844 110 鮑率資料機 Bell 101 10 cps 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 8bit 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 1959 300 資料機 300 鮑率；Bell 103 or V21 30 cps 1962 1200 資料機 600 鮑率；Bell 212A or V22 120 cps 1976 120075 資料機 600 鮑率；V23 120075kbits 01200075kBs 120 cps 1988 2400 資料機 600 鮑率；V22bis 1988 4800 資料機 1600 鮑率；V27ter 1988 9600 資料機 2400 鮑率；V32 1989 144 資料機 2400 鮑率；V32bis 1991 288 資料機 3200 鮑率；V341994 1994 336 資料機 3429 鮑率；V34199698 1996 56k 資料機 80003429 鮑率；V90 560336kbits56K modems V90 and V92 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 ie a DS0 channel 742kBs 1998 56k 資料機 80008000 鮑率；V92 560480kbits 76kBs 2001 可變硬體壓縮 variable V92V44 5603200kbits 740kBs 2000 ISPside textimage compression variable 56010000kbits 7125kBs 1998 ISDN 基本速率介面 單 雙 通道 64128kbitsNote 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 kBits bandwidth and the D channel carries signaling call setup information B channels can be bonded to provide a 128 kbits 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 Bchannels and one Dchannel in T1 regions the PRI carries 23 Bchannels and one Dchannel The Dchannel has different bandwidth on the two interfaces 816kBs 1986 IDSL dual ISDN 16 kbits data channels 2000 寬頻 名稱 最高速率 位元 最高速率 位元組 推出年分 HDSL ITU G9911 aka DS1 1998 MSDSL SDSL SHDSL ITU G9912 2001 ADSL Glite 1536512kbits 19264kBs 1998 ADSL Gdmt ITU G9921 81921024kbits 1024128kBs 1999 ADSL2 ITU G9923 122881440kbits 1536180kBs 2002 ADSL2 ITU G9925 245763584kbits 3072448kBs 2003 DOCSIS v10DOCSIS 10 includes technology which first became available around 19951996 and has since become very widely deployed DOCSIS 11 introduces some security improvements and Quality of Service QoS cable modem 389Mbits 47501125kBs 1997 DOCSIS v20DOCSIS 20 specifications provide increased upstream throughput for symmetric services cable modem 3827Mbits 47503375kBs 2001 VDSL ITU G9931 2001 VDSL2 ITU G9932 2006 VDSL2 ITU G9932 Amendment 1 1115 2015 Gfast ITU G9700 2014 DOCSIS v30DOCSIS 30 includes support for channel bonding and IPv6 cable modem 160120Mbits 2000015000kBs 200000000 wpm 2006 UniDSL 2006 BPON G983 fiber optic service 622155Mbits 7770019300kBs 2005 EPON 8023ah fiber optic service 10001000Mbits 125000125000kBs 2008 DOCSIS v31DOCSIS 31 is currently in development by the Cablelabs Consortium cable modem 10000150Mbits 125000018750kBs 2015 GPON G984 光纖服務 24881244Mbits 311000155500kBs 3 billion wpm 2008 10GPON G987 光纖服務 100002500Mbits 1250000312500kBs 2012 移動式電話介面 這些資料是理論上能提供的最高速度，而實際上會因為像雜訊幹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 下載速率 位元 位元組 上傳速率 位元 位元組 上傳速率 位元 位元組 推出年分 GSM CSD 2G Most operators only support up to 9600bits HSCSD GPRS 25G WiDEN CDMA2000 1RTT EDGE 275G type 1 MS 2002 UMTS 3G EDGE type 2 MS EDGE Evolution type 1 MS EDGE Evolution type 2 MS 1EVDO rev 0 1EVDO rev A 1EVDO rev B HSPA 35G 4EVDO Enhancements 22 多輸入多輸出 HSPA 22 多輸入多輸出 15EVDO rev B UMB 22 多輸入多輸出 LTE 22 多輸入多輸出 2004 UMB 44 多輸入多輸出 EVDO rev C LTE 44 多輸入多輸出 廣域網路 這些資料是理論上能提供的最高速度，而實際上會因為像雜訊幹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 傳輸速率 位元 位元組 推出年份 DS0 Glite aka ADSL Lite 15360512Mbits 01920064MBs DS1 T1 and ISDN Primary Rate Interface E1 and ISDN Primary Rate Interface GSHDSL LRVDSL2 4 to 5 km long range symmetry optional SDSLSDSL is available in various speeds T2 ADSLADSL connections will vary in throughput from 64 kbits to several Mbits depending on configuration Most are commonly below 2 Mbits 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 801024Mbits 100128MBs E2 ADSL2 1235Mbits 150448MBs Satellite InternetSatellite internet may have a high bandwidth but also has a high latency due to the distance between the modem satellite and hub Oneway satellite connections exist where all the downstream traffic is handled by satellite and the upstream traffic by landbased connections such as 56K modems and ISDN 161Mbits 200128MBs ADSL2 2435Mbits 300448MBs E3 DOCSIS v10 cable modem 389Mbits 4751125MBs DOCSIS v20 cable modem 3827Mbits 475337MBs DS3 T3 45 Meg STS1 OC1 STM0 VDSL symmetry optional OC3 STM1 DOCSIS v30 cable modem 2224817152Mbits 27812144MBs VDSL2 symmetry optional T4 T5 OC9 OC12 STM4 OC18 OC24 OC36 OC48 STM16 OC96 OC192 STM64 10 Gigabit Ethernet WAN PHY 10 Gigabit Ethernet LAN PHY OC256 OC768 STM256 OC1536 STM512 OC3072 STM1024 19907GBs 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 1323 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。」 名稱 最高速率 位元 位元組 最高速率 位元 位元組 推出年分 LocalTalk 1988 Econet 1981 Omninet IBM PC Network 1985 ARCNET Standard 1977 Chaosnet Original 1971 Token Ring Original 1985 Ethernet 10BASEX 1980 1985 IEEE Standard Token Ring Later 1989 ARCnet Plus 1992 TNCS 1993 100VG 1995 Token Ring IEEE 8025t Fast Ethernet 100BASEX 1995 FDDI MoCA 10MoCA 11 improves throughput over coaxial cable to 175 Mbitss versus the 100 Mbitss provided by the MoCA 10 specification MoCA 11 HomePlug AV 2005 FireWire IEEE 1394 400FireWire natively supports TCPIP and is often used at an alternative to Ethernet when connecting 2 nodes Tweaktowncom Data rate comparison between FW and Giganet shows that FWs lower overhead has nearly the same throughput as Giganet Unibraincom 1995 HIPPI IEEE 1901 2010 Token Ring IEEE 8025v 2001 Gigabit Ethernet 1000BASEX 1998 Reflective memory or RFM2 125 µs latency 1970 Myrinet 2000 Infiniband SDR 1 2001 RapidIO Gen1 1 2000 Quadrics QsNetI Infiniband DDR 1 2005 RapidIO Gen2 1 2008 Infiniband QDR 1 2007 Infiniband SDR 4 Quadrics QsNetII RapidIO Gen1 4x RapidIO Gen2 2x 2008 10 Gigabit Ethernet 10GBASEX 20022006 Myri 10G Infiniband FDR10 1 NUMAlink 3 2004 Infiniband FDR 1 2011 Infiniband DDR 4 2005 RapidIO Gen2 4x 2008 Scalable Coherent Interface SCI Dual Channel SCI x8 PCIe Infiniband SDR 12 RapidIO Gen4 1 2016 Infiniband EDR 1InfiniBand FDR10 FDR and EDR use a 64b66b encoding scheme 2014 25 Gigabit Ethernet 25GBASE 2016 NUMAlink 4 2004 Infiniband QDR 4 2007 RapidIO Gen2 8x 2008 40 Gigabit Ethernet 40GBASEX 4 2010 Infiniband FDR10 4 Infiniband DDR 12 2005 NUMAlink 6 2012 Infiniband FDR 4 2011 RapidIO Gen2 16 2008 Infiniband QDR 12 2007 Infiniband EDR 4 2014 100 Gigabit Ethernet 100GBASEX 104 20102018 OmniPath 2015 Infiniband FDR10 12 NUMAlink 7 2014 Infiniband FDR 12 2011 Infiniband EDR 12 2014 無線網路 80211 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。當兩臺電腦要用同一臺 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 傳送到接收者，這將使實際頻寬折半。 標準 最高速率 位元 位元組 最高速率 位元 位元組 推出年分 Classic WaveLAN 1988 IEEE 80211 1997 RONJA full duplex 2001 IEEE 80211a 1999 IEEE 80211b 1999 IEEE 80211g 2003 IEEE 80216 WiMAX 2004 IEEE 80211g with Super G by Atheros 2003 IEEE 80211g with 125 High Speed Mode by Broadcom 2003 IEEE 80211g with Nitro by Conexant 2003 IEEE 80211n 2009 IEEE 80211ac maximum theoretical speed 68693Gbits 85086625MBs 2012 IEEE 80211ad maximum theoretical speed 71472Gbits 8925900MBs 2011 IEEE 80211ax aka WiFi 6 2019 無線裝置連線 名稱 最高速率 位元 位元組 最高速率 位元 位元組 推出年分 ANT IrDAControl IrDASIR 802154 24 GHz Bluetooth 11 2002 Bluetooth 20EDR 2004 IrDAFIR IrDAVFIR Bluetooth 30 2009 Bluetooth 40 2010 Bluetooth 41 2013 Bluetooth 42 2014 Bluetooth 50 2016 IrDAUFIR WUSBUWB IrDAGigaIR 電腦匯流排 名稱 傳輸速率 位元 位元組 傳輸速率 位元 位元組 推出年分 I²C 1992 Apple II series incl Apple IIGS 8bit1 MHz VAW Apple IIgs Specs 1977 SS50 Bus 8bit1 MHz STD80 8bit8 MHz ISA 8Bit477 MHz 1981 STD80 16bit8 MHz Zorro II 16bit714 MHzThe Zorro II bus use 4 clocks per 16Bit of data transferred See the Zorro III technical specification for more information 1986 ISA 16Bit833 MHz 1984 Europe Card Bus 8Bit10 MHz 1977 S100 bus 8bit10 MHz 1976 Serial Peripheral Interface Bus Up to 100 MHz 1989 Low Pin Count 2002 STEbus 8Bit16 MHz 1987 CBus 16bit10 MHz Bus used in early NEC PC9800 series and compatible systems 1982 HP Precision Bus STD32 32bit8 MHz NESA 32bit8 MHz EISA 81632bit833 MHz 1988 VME64 3264bit 1981 NuBus 10 MHz 1987 DEC TURBOchannel 32bit125 MHz MCA 1632bit10 MHz 1987 NuBus90 20 MHz 1991 APbus 32bit25 MHz 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 Sbus 32bit25 MHz 1989 DEC TURBOchannel 32bit25 MHz Local Bus 98 32bit33 MHz VESA Local Bus VLB 32bit33 MHz 1992 PCI 32bit33 MHz 1993 HP GSC1X Zorro III 32bitasync eq 375 MHz Dave Haynie designer of the Zorro III bus claims in this 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 Dave Haynie designer of the Zorro III bus states in this 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 which should yield about 375 MHz No existing implementation performs to this level Dave Haynie designer of the Zorro III bus claims in this posting that Zorro III has a max burst rate of 150 MBs 1990 VESA Local Bus VLB 32bit40 MHz 1992 Sbus 64bit25 MHz 1995 PCI Express 10 1 link Note that PCI Express 1020 lanes use an 8b10b encoding scheme 2004 HP GSC2X PCI 64bit33 MHz 1993 PCI 32bit66 MHz 1995 AGP 1 1997 RapidIO Gen1 1 HIO bus GIO64 64bit40 MHz PCI Express 10 2 link 2011 PCI Express 20 1 link 2007 AGP 2 1997 PCI 64bit66 MHz PCIX DDR 16bit RapidIO Gen2 1 PCI 64bit100 MHz PCI Express 30 1 link PCIe 30 increases the bandwidth from 5 GTs to 8 GTs and switches to 128b130b encoding 2011 Unified Media Interface UMI 4 link 2011 Direct Media Interface DMI 4 link 2004 Enterprise Southbridge Interface ESI PCI Express 10 4 link 2004 AGP 4 1998 PCIX 133 PCIX QDR 16bit InfiniBand single 4InfiniBand SDR DDR and QDR use an 8b10b encoding scheme RapidIO Gen1 4 RapidIO Gen2 2 UPA Unified Media Interface 20 UMI 20 4 link 2012 Direct Media Interface 20 DMI 20 4 link 2011 PCI Express 10 8 link 2004 PCI Express 20 4 link 2007 AGP 8 2002 PCIX DDR RapidIO Gen2 4 Sun JBus 200 MHz 2003 HyperTransport 800 MHz 16pair 2001 PCI Express 30 4 link 2011 HyperTransport 1 GHz 16pair PCI Express 10 16 link 2004 PCI Express 20 8 link PCIe 20 effectively doubles the bus standards bandwidth from 25 GTs to 5 GTs 2007 PCIX QDR AGP 8 64bit RapidIO Gen2 8x Direct Media Interface 30 DMI 30 4 link 2015 PCI Express 30 8 link 2011 PCI Express 10 32 link 2001 PCI Express 20 16 link 2007 RapidIO Gen2 16x PCI Express 30 16 link 2011 PCI Express 20 32 link 2007 QPI 480GTs 240 GHz HyperTransport 20 14 GHz 32pair 2004 QPI 586GTs 293 GHz QPI 640GTs 320 GHz QPI 72GTs 36 GHz 2012 PCI Express 30 32 link 2011 QPI 80GTs 40 GHz 2012 QPI 96GTs 48 GHz 2014 HyperTransport 30 26 GHz 32pair 2006 HyperTransport 31 32 GHz 32pair 2008 NVLink 2016 NVLink 20 2017 Infinity Fabric 512bit 2s 2666Mhz 2017 Infinity Fabric Max theoretical 2017 筆記型電腦的外部匯流排 名稱 最高速率 位元 位元組 最高速率 位元 位元組 推出年分 PC Card 16bit 255 ns byte mode PC Card 16bit 255 ns word mode PC Card 16bit 100 ns byte mode PC Card 16bit 100 ns word mode PC Card 32bit CardBus byte mode ExpressCard 12 USB 20 mode PC Card 32bit CardBus word mode PC Card 32bit CardBus doubleword mode ExpressCard 12 PCI Express mode ExpressCard 20 USB 30 mode ExpressCard 20 PCI Express mode 電腦儲存裝置 名稱 最高速率 位元 位元組 最高速率 位元 位元組 推出年分 Teletype Model 33 paper tape 70 bits 10 ASCII characters per second 1963 TRS80 Model 1 Level 1 BASIC cassette tape interface 250 bits 1977 Apple 2 cassette tape interface 1500 bits 1977 Single Density 8inch FM Floppy Disk Controller 160 KB 1973 Double Density 525inch MFM Floppy Disk Controller 360 KB 1978 High Density MFM Floppy Disk Controller 12 MB144 MB 1984 CD Controller 1 1988 MFM hard disk 1980 RLL hard disk DVD Controller 1 ESDI ATA PIO Mode 0 1986 HD DVD Controller 1 Bluray Controller 1 SCSI Narrow SCSI 5 MHz SCSI1 SCSI2 and SCSI3 are signaling protocols and do not explicitly refer to a specific rate Narrow SCSI exists using SCSI1 and SCSI2 Higher rates use SCSI2 or later 1986 ATA PIO Mode 1 1994 ATA PIO Mode 2 1994 Fast SCSI 8 bits10 MHz ATA PIO Mode 3 1996 AoE over Fast Ethernetminimum overhead is 38 byte L1L2 14 byte AoE per 1024 byte user data 2009 iSCSI over Fast Ethernetminimum overhead is 38 byte L1L2 20 byte IP 20 byte TCP per 1460 byte user data 2004 ATA PIO Mode 4 1996 Fast Wide SCSI 16 bits10 MHz Ultra SCSI Fast20 SCSI 8 bits20 MHz Ultra DMA ATA 33 1998 Ultra Wide SCSI 16 bits20 MHz Ultra2 SCSI 40 Fast40 SCSI 8 bits40 MHz Ultra DMA ATA 66 2000 Bluray Controller 16 Ultra2 wide SCSI 16 bits40 MHz Serial Storage Architecture SSA 1990 Ultra DMA ATA 100 2002 Fibre Channel 1GFC 10625 GHz Fibre Channel 1GFC 2GFC 4GFC use an 8b10b encoding scheme Fibre Channel 10GFC which uses a 64B66B encoding scheme is not compatible with 1GFC 2GFC and 4GFC and is used only to interconnect switches 1997 AoE over gigabit Ethernet jumbo framesminimum overhead is 38 byte L1L2 14 byte AoE per 8192 byte user data 2009 iSCSI over gigabit Ethernet jumbo framesminimum overhead is 38 byte L1L2 20 byte IP 20 byte TCP per 8960 byte user data 2004 Ultra DMA ATA 133 2005 Ultra3 SCSI Ultra 160 SCSI Fast80 Wide SCSI 16 bits40 MHz DDR SATA revision 10SATA and SAS use an 8b10b encoding scheme 2003 Fibre Channel 2GFC 2125 GHz 2001 Ultra320 SCSI Ultra4 SCSI 16 bits80 MHz DDR Serial Attached SCSI SAS 2004 SATA Revision 20 2004 Fibre Channel 4GFC 425 GHz 2004 Serial Attached SCSI SAS 2 2009 SATA Revision 30 2008 Fibre Channel 8GFC 850 GHz 2005 Fibre Channel 16GFC 14025 GHz 2011 Serial Attached SCSI SAS 3 2013 AoE over 10GbE 2009 iSCSI over 10GbE 2004 FCoE over 10GbEminimum overhead is 38 byte L1L2 36 byte FC per 2048 byte user data 2009 SATA revision 32 SATA Express 2013 Serial Attached SCSI SAS 4 preliminary specification tba Fibre Channel 32GFC 2805 GHz 2016 NVMe over M2 or U2 using PCI Express 30 4 link 2013 iSCSI over InfiniBand 4 2007 iSCSI over 100G Ethernet 2010 FCoE over 100G Ethernet 2010 電腦外部匯流排 名稱 最高速率 位元 位元組 最高速率 位元 位元組 推出年分 Apple Desktop Bus 1986 PS2 port 1987 Serial MIDI 1983 CBM Bus maxproprietary serial version of IEEE488 by Commodore International 1981 Serial RS232 max 1962 Serial DMX512A 1998 Parallel Centronics Serial 16550 UART max USB 10 low speed 1996 Serial UART max GPIBHPIB IEEE4881 IEEE488 max Serial EIA422 max USB 10 full speed 1996 Parallel Centronics EPP 2 MHz 1992 Serial EIA485 max GPIBHPIB IEEE48812003 IEEE488 max FireWire IEEE 1394 100 1995 FireWire IEEE 1394 200 1995 FireWire IEEE 1394 400 1995 USB 20 high speed 2000 FireWire IEEE 1394b 800FireWire IEEE 1394b uses an 8b10b encoding scheme 2002 Fibre Channel 1 Gb SCSI FireWire IEEE 1394b 1600 2007 Fibre Channel 2 Gb SCSI eSATA SATA 300 2004 CoaXPress Base up and down bidirectional link 2009 FireWire IEEE 1394b 3200 2007 External PCI Express 20 1 Fibre Channel 4 Gb SCSI USB 30 SuperSpeed 2010 eSATA SATA 600 2011 CoaXPress full up and down bidirectional link 2009 External PCI Express 20 2 USB 31 SuperSpeed 2013 Thunderbolt 2011 External PCI Express 20 4 Thunderbolt 2 2013 USB 32 SuperSpeed aka USB 32 Gen 22 2017 External PCI Express 20 8 Thunderbolt 3 2015 USB4 2019 Thunderbolt 4 2020 External PCI Express 20 16 MAC 到 PHY 的電腦匯流排 名稱 最高速率 位元 位元組 最高速率 位元 位元組 推出年分 Media Independent Interface MII 4 lanes Reduced MII RMII 2 lanes Serial MII SMII 1 lane Gigabit MII GMII 8 lanes Reduced gigabits MII RGMII 4 lanes Serial gigabits MII SGMII 2 lanes Reduced serial gigabits MII RSGMII 2 lanes Reduced serial gigabits MII plus RSGMIIPLUS 2 lanes Quad serial gigabits MII QSGMII 2 lanes 10 gigabits MII XGMII 32 lanes XGMII attachment unit interface XAUI 4 lanes 40 gigabits MII XLGMII 100 gigabits MII CGMII 2008 PHY 到 XPDR 的電腦匯流排 名稱 最高速率 位元 位元組 最高速率 位元 位元組 推出年分 10 gigabits 16bit interface XSBI 16 lanes 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。 記憶體型別 晶片規格 記憶體頻率 記憶體速率 記憶體頻寬 位元 位元組 記憶體頻寬 位元 位元組 FPM DRAM 45 ns EDO DRAM 30 ns PC66 SDR SDRAM 1015 ns PC100 SDR SDRAM 8 ns PC133 SDR SDRAM 775 ns RIMM1200 RDRAM PC600 RIMM1400 RDRAM PC700 RIMM1600 RDRAM PC800 PC1600 DDR SDRAM DDR200 RIMM2100 RDRAM PC1066 PC2100 DDR SDRAM DDR266 PC2700 DDR SDRAM DDR333 PC3200 DDR SDRAM DDR400 PC23200 DDR2 SDRAM DDR2400 PC3500 DDR SDRAM DDR433 PC3700 DDR SDRAM DDR466 PC4000 DDR SDRAM DDR500 PC4200 DDR SDRAM DDR533 PC24200 DDR2 SDRAM DDR2533 PC4400 DDR SDRAM DDR550 PC4800 DDR SDRAM DDR600 PC25300 DDR2 SDRAM DDR2667 PC26000 DDR2 SDRAM DDR2750 PC26400 DDR2 SDRAM DDR2800 PC36400 DDR3 SDRAM DDR3800 PC27200 DDR2 SDRAM DDR2900 PC28000 DDR2 SDRAM DDR21000 PC28500 DDR2 SDRAM DDR21066 PC38500 DDR3 SDRAM DDR31066 PC28800 DDR2 SDRAM DDR21100 PC28888 DDR2 SDRAM DDR21100 PC29136 DDR2 SDRAM DDR21142 PC29200 DDR2 SDRAM DDR21150 PC29600 DDR2 SDRAM DDR21200 PC210000 DDR2 SDRAM DDR21250 PC310600 DDR3 SDRAM DDR31333 PC311000 DDR3 SDRAM DDR31375 PC312800 DDR3 SDRAM DDR31600 PC313000 DDR3 SDRAM DDR31625 PC314400 DDR3 SDRAM DDR31800 PC314900 DDR3 SDRAM DDR31866 PC315000 DDR3 SDRAM DDR31866 PC316000 DDR3 SDRAM DDR32000 PC317000 DDR3 SDRAM DDR32133 PC417000 DDR4 SDRAM DDR42133 Scott Mueller Upgrading and Repairing PCs Que Publishing Mar 7 2013 Table 611 JEDEC Standard DDR4 Module 284PIN DIMM Speeds and Transfer Rate PC417600 DDR3 SDRAM DDR42200 PC419200 DDR3 SDRAM DDR42400 PC421300 DDR3 SDRAM DDR42666 PC424000 DDR3 SDRAM DDR43000 PC425600 DDR4 SDRAM DDR43200 PC538400 DDR5 SDRAM DDR54800 PC541600 DDR5 SDRAM DDR55200 PC544800 DDR5 SDRAM DDR55600 PC548000 DDR5 SDRAM DDR56000 PC551200 DDR5 SDRAM DDR56400 參見 位元率 Comparison of latency and throughput 球鞋網路 註解 外部連結 Interconnection Speeds Compared Need for Speed Theoretical Bandwidth Comparison Contains a graph illustrating bandwidth speeds 頻寬 裝置頻寬 頻寬 頻寬 頻寬