List of device bandwidths

From Wikipedia, the free encyclopedia

Jump to: navigation, search

This is a list of device bandwidths: the channel capacity (or, more informally, bandwidth) of some computer devices employing methods of data transport is listed by bit/s, kilobit/s (kbit/s), megabit/s (Mbit/s), or gigabit/s (Gbit/s) as appropriate and also MB/s or megabytes per second. They are listed in order from lowest bandwidth to highest.

Whether to use bit/s or byte/s (B/s) is often a matter of convention. The most commonly cited measurement is bolded. In general, parallel interfaces are quoted in byte/s (B/s), serial in bit/s. On devices like modems, bytes may be more than 8 bits long because they may be individually padded out with additional start and stop bits; the figures below will reflect this. Where channels use line codes, such as Ethernet, Serial ATA and PCI Express, quoted speeds are for the decoded signal.

Many of these figures are theoretical maxima, and various real-world considerations will generally keep the actual effective throughput much lower. The actual throughput achievable on Ethernet networks, for example (especially when heavily loaded or when running over substandard media), is debatable. The figures are also simplex speeds, which may conflict with the duplex speeds vendors sometimes use in promotional materials.

All of the figures listed here are true metric quantities and not binary prefixes (1 kilobit, for example, is 1000 bits, not 1024 bits). Similarly, kB, MB, GB mean kilobytes, megabytes, gigabytes, not kibibytes, mebibytes, gibibytes.

Contents


CONNECTION BITS BYTES

[edit] TTY/Teleprinter or Telecommunications device for the deaf
TTY (V.18) 45 bit/s[1] 6 cps
TTY (V.18) 50 bit/s 6.71 cps

[edit] Modems[2]
Modem 110 baud 110 bit/s 10 B/s [3]
Modem 300 baud (V.21) 300 bit/s 30 B/s[2]
Modem Bell 103 (Bell 103) 300 bit/s 30 B/s[2]
Modem 1200 (V.22) 1 200 bit/s 120 B/s[2]
Modem Bell 212A (Bell 212A) 1 200 bit/s 120 B/s[2]
Modem 2400 (V.22bis) 2 400 bit/s 240 B/s[2]
Modem 9600 (V.32) 9 600 bit/s 960 B/s[2]
Modem 14.4k (V.32bis) 14.4 kbit/s 1.44 kB/s[2]
Modem 16.8k (ZyXEL) 16.8 kbit/s 1.68 kB/s[2]
Modem 19.2k (V.32terbo) 19.2 kbit/s 1.92 kB/s[2]
Modem 28.8k (V.34) 28.8 kbit/s 2.88 kB/s[2]
Modem 33.6k (V.34plus/V.34bis) 33.6 kbit/s 3.36 kB/s[2]
Modem 56k[4] (V.90) (upstream) 33.6 kbit/s 3.36 kB/s[2]
Modem 56k[4] (V.90) (downstream) 56 kbit/s 5.6 kB/s[2]
Modem 56k[4] (V.92) (upstream) 48 kbit/s 4.8 kB/s[2]
Modem 56k[4] (V.92) (downstream) 56 kbit/s 5.6 kB/s[2]
Notes: [2] [3]

[edit] ISDN[5]
ISDN Basic Rate Interface (BRI) data channel (B-channel) 64 kbit/s 8 kB/s
ISDN Basic Rate Interface (BRI) signalling channel (D-channel) 16 kbit/s 2 kB/s
Each ISDN Primary Rate Interface (PRI) data channel (B-channel) 64 kbit/s 8 kB/s
ISDN Primary Rate Interface (PRI) signalling channel (D-channel) 64 kbit/s 8 kB/s

[edit] Computer buses
ISA 8-Bit/4.77 MHz[6] 9.6 Mbit/s 1.2 MB/s
Zorro II 16-Bit/7.14 MHz[7] 28.56 Mbit/s 3.56 MB/s
ISA 16-Bit/8.33 MHz[6] 42.4 Mbit/s 5.3 MB/s
Low Pin Count 133.33 Mbit/s 16.67 MB/s
HP-Precision Bus 184 Mbit/s 23 MB/s
EISA 8-16-32bits/8.33 MHz 320 Mbit/s 32 MB/s
VME64 32-64bits 400 Mbit/s 40 MB/s
NuBus 10 MHz 400 Mbit/s 40 MB/s
DEC TURBOchannel 32-bit/12.5 MHz 400 Mbit/s 50 MB/s
MCA 16-32bits/10 MHz 660 Mbit/s 66 MB/s
NuBus90 20 MHz 800 Mbit/s 80 MB/s
Sbus 32-bit/25 MHz 800 Mbit/s 100 MB/s
DEC TURBOchannel 32-bit/25 MHz 800 Mbit/s 100 MB/s
VLB 32-bit/33 MHz 1.06666 Gbit/s 133.33 MB/s
PCI 32-bit/33 MHz 1.06666 Gbit/s 133.33 MB/s
HP GSC-1X 1.136 Gbit/s 142 MB/s
Sbus 64-bit/25 MHz 1.6 Gbit/s 200 MB/s
PCI Express (x1 link)[8] 2 Gbit/s 250 MB/s
HP GSC-2X 2.048 Gbit/s 256 MB/s
PCI 64-bit/33 MHz 2.13333 Gbit/s 266.66 MB/s
PCI 32-bit/66 MHz 2.13333 Gbit/s 266.66 MB/s
AGP 1x 2.13333 Gbit/s 266.66 MB/s
PCI Express (x2 link)[8] 4 Gbit/s 500 MB/s
AGP 2x 4.26666 Gbit/s 533.33 MB/s
PCI 64-bit/66 MHz 4.26666 Gbit/s 533.33 MB/s
PCI-X DDR 16-bit 4.26666 Gbit/s 533.33 MB/s
PCI 64-bit/100 MHz 6.39999 Gbit/s 799.99 MB/s
PCI Express (x4 link)[8] 8 Gbit/s 1.00 GB/s
AGP 4x 8.53333 Gbit/s 1.06666 GB/s
PCI-X 133 8.53333 Gbit/s 1.06666 GB/s
PCI-X QDR 16-bit 8.53333 Gbit/s 1.06666 GB/s
InfiniBand single 4X[9] 8 Gbit/s 1 GB/s
UPA 15.36 Gbit/s 1.92 GB/s
PCI Express (x8 link)[8] 16 Gbit/s 2 GB/s
AGP 8x 17.066 Gbit/s 2.133 GB/s
PCI-X DDR 17.066 Gbit/s 2.133 GB/s
PCI Express (x16 link)[8] 32 Gbit/s 4 GB/s
PCI-X QDR 34.133 Gbit/s 4.266 GB/s
AGP 8x 64-bit 34.133 Gbit/s 4.266 GB/s
HyperTransport (800 MHz, 16-pair) 51.2 Gbit/s 6.4 GB/s
HyperTransport (1 GHz, 16-pair) 64 Gbit/s 8 GB/s
PCI Express (x32 link)[8] 64 Gbit/s 8 GB/s
PCI Express 2.0 (x16 link)[10] 64 Gbit/s 8 GB/s
PCI Express 2.0 (x32 link)[10] 128 Gbit/s 16 GB/s
HyperTransport (2.8 GHz, 32-pair) 179.2 Gbit/s 22.4 GB/s

[edit] Computer buses (storage)
PC Floppy Disk Controller (1.44MB) 0.5 Mbit/s 62.5 kB/s
PIO Mode 0 26.4 Mbit/s 3.3 MB/s
SCSI 1 (5 MHz) 40 Mbit/s 5 MB/s
PIO Mode 1 41.6 Mbit/s 5.2 MB/s
PIO Mode 2 66.4 Mbit/s 8.3 MB/s
Fast SCSI 2 (8 bits/10 MHz) 80 Mbit/s 10 MB/s
PIO Mode 3 88.8 Mbit/s 11.1 MB/s
PIO Mode 4 133.3 Mbit/s 16.7 MB/s
Fast Wide SCSI 2 (16 bits/10 MHz) 160 Mbit/s 20 MB/s
Ultra DMA ATA 33 264 Mbit/s 33 MB/s
Ultra Wide SCSI 40 (16 bits/20 MHz) 320 Mbit/s 40 MB/s
Ultra DMA ATA 66 528 Mbit/s 66 MB/s
Ultra-2 wide SCSI 80 (16 bits/40 MHz) 640 Mbit/s 80 MB/s
Serial Storage Architecture SSA 640 Mbit/s 80 MB/s
Ultra DMA ATA 100 800 Mbit/s 100 MB/s
Fibre Channel 1GFC (1.0625 GHz) 850 Mbit/s 106.25 MB/s
Ultra DMA ATA 133 1.064 Gbit/s 133 MB/s
Serial ATA (SATA-150) 1.2 Gbit/s 150 MB/s
Ultra-3 SCSI 160 (16 bits/40 MHz DDR) 1.28 Gbit/s 160 MB/s
Fibre Channel 2GFC (2.125 GHz) 1.7 Gbit/s 212.5 MB/s
Serial ATA (SATA-300) 2.4 Gbit/s 300 MB/s
Ultra-320 SCSI (16 bits/80 MHz DDR) 2.56 Gbit/s 320 MB/s
Serial Attached SCSI 3 Gbit/s 375 MB/s
Fibre Channel 4GFC (4.25 GHz) 3.4 Gbit/s 425 MB/s
Serial_ATA (SATA-600) (Not yet implemented) 4.8 Gbit/s 600 MB/s
Ultra-640 SCSI (16 bits/160 MHz DDR) (Not yet implemented) 5.12 Gbit/s 640 MB/s
Serial Attached SCSI 2 (Not yet implemented) 6 Gbit/s 750 MB/s
Note that [11], [12] and [13]

[edit] Computer buses (external)
Apple Desktop Bus 10 kbit/s 1.25 kB/s
MIDI 31.25 kbit/s 3.9 kB/s
Serial RS-232 max 230.4 kbit/s 28.8 kB/s
Parallel (Centronics) CPP ~133 kHz 1 Mbit/s 133 kB/s
USB Low Speed (USB 1.0) 1.536 Mbit/s 192 kB/s
Serial RS-422 max 10 Mbit/s 1.25 MB/s
USB Full Speed (USB 1.1) 12 Mbit/s 1.5 MB/s
Parallel (Centronics) EPP 2 MHz 16 Mbit/s 2 MB/s
FireWire (IEEE 1394) 100 98.304 Mbit/s 12.288 MB/s
FireWire (IEEE 1394) 200 196.608 Mbit/s 24.576 MB/s
FireWire (IEEE 1394) 400 393.216 Mbit/s 49.152 MB/s
USB Hi-Speed (USB 2.0) 480 Mbit/s 60 MB/s
FireWire (IEEE 1394b) 800 786.432 Mbit/s 98.304 MB/s
FireWire (IEEE 1394b) 1600 1.572864 Gbit/s 196.608 MB/s
Cameralink base 24bit 85 MHz 2.04 Gbit/s 261.12 MB/s
eSATA (SATA 300) 2.4 Gbit/s 300 MB/s
FireWire (IEEE 1394b) 3200 3.145728 Gbit/s 393.216 MB/s
USB 3.0 (Planned) 4.8 Gbit/s 600 MB/s
Note that [14].

[edit] Computer buses (MAC to PHY)
XGMII (32 Lanes) 10.0 Gbit/s 1.25 GB/s
XAUI (4 Lanes) 12.5 Gbit/s 1.5625 GB/s

[edit] Computer buses (PHY to XPDR)
XSBI (16 Lanes) 995.2 Mbit/s 124.4 MB/s

[edit] Wireless device connection
IrDA-Control 72 kbit/s 9 kB/s
IrDA-SIR 115.2 kbit/s 14 kB/s
802.15.4 (2.4 GHz) 250 kbit/s 31.25 kB/s
Bluetooth 1.1 1 Mbit/s 125 kB/s
Bluetooth 2.0+EDR 3 Mbit/s 375 kB/s
IrDA-FIR 4 Mbit/s 0.51 MB/s
IrDA-VFIR 16 Mbit/s 2 MB/s
WUSB-UWB 480 Mbit/s 60 MB/s

[edit] Wireless networking
802.11 legacy 0.125 2 Mbit/s 0.25 MB/s
RONJA free source optical wireless 10 Mbit/s 1.25 MB/s
802.11b DSSS 0.125 11 Mbit/s 1.375 MB/s
802.11b+ non-standard DSSS 0.125 44 Mbit/s 5.5 MB/s
802.11a 0.75 54 Mbit/s 6.75 MB/s
802.11g DSSS 0.125 54 Mbit/s 6.75 MB/s
802.16 (WiMAX) 70 Mbit/s 8.75 MB/s
802.11n 540 Mbit/s 67.5 MB/s

[edit] Mobile telephone interfaces
GSM CSD 2.4 to 14.4 kbit/s 0.3 to 1.8 kB/s
HSCSD upstream 14.4 kbit/s 1.8 kB/s
HSCSD downstream 43.2 kbit/s 5.4 kB/s
GPRS upstream 28.8 kbit/s 3.6 kB/s
GPRS downstream 57.6 kbit/s 7.2 kB/s
WiDEN 100 kbit/s 12.5 kB/s
EDGE downstream 236.8 kbit/s 29.6 kB/s
UMTS downstream 1920 kbit/s 240 kB/s
HSDPA downstream 1.8 Mbit/s to 14.4 Mbit/s 225 kB/s to 1.8 MB/s
HSUPA upstream 0.73 to 5.76 Mbit/s 91 to 720 kB/s
HSOPA downstream 100 Mbit/s 12.5 MB/s
CDMA2000 1xRTT downstream 153 kbit/s 18 kB/s
CDMA2000 1xRTT upstream 153 kbit/s 18 kB/s
1xEV-DO Rev. 0 downstream 2.4576 Mbit/s 307.2 kB/s
1xEV-DO Rev. 0 upstream 153 kbit/s 19 kB/s
1xEV-DO Rev. A downstream 3.1 Mbit/s 396.8 kB/s
1xEV-DO Rev. A upstream 1.8 Mbit/s 230.4 kB/s
1xEV-DO Rev. B downstream 73.5 Mbit/s 9.2 MB/s
1xEV-DO Rev. B upstream 14.7 Mbit/s 1.8 MB/s
1xEV-DO Rev. C downstream 280 Mbit/s 35 MB/s
1xEV-DO Rev. C upstream 75 Mbit/s 9 MB/s

[edit] Wide area network
DS0 64 kbit/s 8 kB/s
Satellite Internet upstream 64 kbit/s to 1 Mbit/s 8 kB/s to 128 kB/s
Satellite Internet[15] downstream 128 kbit/s to 16 Mbit/s 16 kB/s to 2 MB/s
Frame Relay[16] 8 kbit/s to 45 Mbit/s 1 kB/s to 5.625 MB/s
G.SHDSL 2.304 Mbit/s 0.288 MB/s
SDSL 64 kbit/s to 4.608 Mbit/s 8 kB/s to 576 kB/s
G.Lite (aka ADSL Lite) upstream 512 kbit/s 64 kB/s
G.Lite (aka ADSL Lite) downstream 1.5 Mbit/s 192 kB/s
ADSL upstream 64 kbit/s to 1.024 Mbit/s 8 kB/s to 128 kB/s
ADSL[17] downstream 256 kbit/s to 8 Mbit/s 32 kB/s to 1 MB/s
ADSL2 upstream 64 kbit/s to 3.5 Mbit/s 8 kB/s to 448 kB/s
ADSL2 downstream 256 kbit/s to 12 Mbit/s 32 kB/s to 1.5 MB/s
ADSL2Plus upstream 64 kbit/s to 3.5 Mbit/s 8 kB/s to 448 kB/s
ADSL2Plus downstream 256 kbit/s to 24 Mbit/s 32 kB/s to 3 MB/s
DOCSIS v1.0[18] (Cable modem) upstream 10 Mbit/s 1.25 MB/s
DOCSIS v1.0 (Cable modem) downstream 38 Mbit/s 4.75 MB/s
DOCSIS v2.0[19] (Cable modem) upstream 30 Mbit/s 3.75 MB/s
DOCSIS v2.0 (Cable modem) downstream 40 Mbit/s 5 MB/s
DOCSIS v3.0[20] (Cable modem) upstream 120 Mbit/s 15 MB/s
DOCSIS v3.0 (Cable modem) downstream 160 Mbit/s 20 MB/s
DS1/T1 1.544 Mbit/s 192.5 kB/s
E1 2.048 Mbit/s 256 kB/s
T2 6.312 Mbit/s 789 kB/s
E2 8.448 Mbit/s 1.056 MB/s
E3 34.368 Mbit/s 4.296 MB/s
DS3/T3 ('45 Meg') 44.736 Mbit/s 5.5925 MB/s
STS-1/EC-1/OC-1/STM-0 51.84 Mbit/s 6.48 MB/s
VDSL (symmetry optional) 12 Mbit/s to 100 Mbit/s 1.5 MB/s to 12.5 MB/s
VDSL2 (symmetry optional) 12 Mbit/s to 250 Mbit/s 1.5 MB/s to 31.25 MB/s
LR-VDSL2 (4 to 5 km [long-]range) (symmetry optional) 1 Mbit/s to 4 Mbit/s 128 kB/s to 512 kB/s
OC-1 51.84 Mbit/s 6.48 MB/s
OC-3/STM-1 155.52 Mbit/s 19.44 MB/s
T4 274.176 Mbit/s 34.272 MB/s
T5 400.352 Mbit/s 50.044 MB/s
OC-9 466.56 Mbit/s 58.32 MB/s
OC-12/STM-4 622.08 Mbit/s 77.76 MB/s
OC-18 933.12 Mbit/s 116.64 MB/s
OC-24 1.244 Gbit/s 155.5 MB/s
OC-36 1.9 Gbit/s 237.5 MB/s
OC-48/STM-16 2.48832 Gbit/s 311.04 MB/s
OC-96 4.976 Gbit/s 622 MB/s
OC-192/STM-64 9.95328 Gbit/s 1.24416 GB/s
10 Gigabit Ethernet WAN PHY 9.95328 Gbit/s 1.24416 GB/s
10 Gigabit Ethernet LAN PHY 10 Gbit/s 1.25 GB/s
OC-256 13.271 Gbit/s 1.65888 GB/s
OC-768/STM-256 39.81312 Gbit/s 4.97664 GB/s
OC-1536/STM-512 79.626 Gbit/s 9.95325 GB/s
OC-3072/STM-1024 159.252 Gbit/s 19.9065 GB/s

[edit] Local area network
LocalTalk 230.1 kbit/s 28.8 kB/s
Econet 800 kbit/s 100 kB/s
ARCNET (Standard) 2.5 Mbit/s 0.3125 MB/s
Ethernet Experimental 3 Mbit/s 0.375 MB/s
Token Ring (Original) 4.16 Mbit/s 0.52 MB/s
Ethernet (10base-X) 10 Mbit/s 1.25 MB/s
Token Ring (Later) 16 Mbit/s 2 MB/s
Token Ring (Later) 100 Mbit/s 12.5 MB/s
Fast Ethernet (100base-X) 100 Mbit/s 12.5 MB/s
FDDI 100 Mbit/s 12.5 MB/s
Token Ring (Later) 1 Gbit/s 125 MB/s
Gigabit Ethernet (1000base-X) 1 Gbit/s 125 MB/s
Myrinet 2000 2 Gbit/s 250 MB/s
Infiniband 1X[9] 2 Gbit/s 250 MB/s
10 gigabit Ethernet (10Gbase-X) 10 Gbit/s 1.25 GB/s
Myri 10G 10 Gbit/s 1.25 GB/s
Infiniband 4X[9] 8 Gbit/s 1 GB/s
Scalable Coherent Interconnect (SCI) Dual Channel SCI, x8 PCIe 20 Gbit/s 2.5 GB/s
Infiniband 12X[9] 24 Gbit/s 3 GB/s
100 gigabit Ethernet (100Gbase-X) 100 Gbit/s 12.5 GB/s

[edit] Memory Interconnect Buses / RAM
FPM DRAM 1.408 Gbit/s 0.176 GB/s
EDO DRAM 2.112 Gbit/s 0.264 GB/s
SPARC MBus 2.55 Gbit/s 0.32 GB/s
PC66 SDRAM 4.264 Gbit/s 0.533 GB/s
PC100 SDRAM 6.4 Gbit/s 0.8 GB/s
HP Runway bus 125 MHz 64-bit 6.4 Gbit/s 0.8 GB/s
PC133 SDRAM 8.528 Gbit/s 1.066 GB/s
PC800 RDRAM (single-channel) 12.8 Gbit/s 1.6 GB/s
PC1600 DDR-SDRAM (single channel) 12.8 Gbit/s 1.6 GB/s
HP Runway bus 125 MHz 64-bit DDR 16 Gbit/s 2 GB/s
PC1066 RDRAM (single-channel) 16.8 Gbit/s 2.1 GB/s
PC2100 DDR-SDRAM (single channel) 16.8 Gbit/s 2.1 GB/s
PC1200 RDRAM (single-channel) 19.2 Gbit/s 2.4 GB/s
PC2700 DDR-SDRAM (single channel) 21.6 Gbit/s 2.7 GB/s
PC800 RDRAM (dual-channel) 25.6 Gbit/s 3.2 GB/s
PC1600 DDR-SDRAM (dual channel) 25.6 Gbit/s 3.2 GB/s
PC3200 DDR-SDRAM (single channel) 25.6 Gbit/s 3.2 GB/s
PC2-3200 DDR2-SDRAM (single channel) 25.6 Gbit/s 3.2 GB/s
PC1066 RDRAM (dual-channel) 33.6 Gbit/s 4.2 GB/s
PC2100 DDR-SDRAM (dual channel) 33.6 Gbit/s 4.2 GB/s
PC2-4200 DDR2-SDRAM (single channel) 34.136 Gbit/s 4.267 GB/s
PC4000 DDR-SDRAM (single channel) 34.3 Gbit/s 4.287 GB/s
PC1200 RDRAM (dual-channel) 38.4 Gbit/s 4.8 GB/s
PC2-5300 DDR2-SDRAM (single channel) 42.4 Gbit/s 5.3 GB/s
PC2-5400 DDR2-SDRAM (single channel) 42.664 Gbit/s 5.333 GB/s
PC2700 DDR-SDRAM (dual channel) 43.2 Gbit/s 5.4 GB/s
PC3200 DDR-SDRAM (dual channel) 51.2 Gbit/s 6.4 GB/s
PC2-3200 DDR2-SDRAM (dual channel) 51.2 Gbit/s 6.4 GB/s
PC2-6400 DDR2-SDRAM (single channel) 51.2 Gbit/s 6.4 GB/s
PC3-6400 DDR3-SDRAM (single channel) 51.2 Gbit/s 6.4 GB/s
Itanium zx1 bus 51.2 Gbit/s 6.4 GB/s
PC3-8500 DDR3-SDRAM (single channel) 68.24 Gbit/s 8.53 GB/s
PC2-4200 DDR2-SDRAM (dual channel) 68.272 Gbit/s 8.534 GB/s
PC4000 DDR-SDRAM (dual channel) 68.6 Gbit/s 8.575 GB/s
PC2-5300 DDR2-SDRAM (dual channel) 84.8 Gbit/s 10.6 GB/s
PC2-5400 DDR2-SDRAM (dual channel) 85.328 Gbit/s 10.666 GB/s
PC3-10600 DDR3-SDRAM (single channel) 85.36 Gbit/s 10.67 GB/s
PC2-6400 DDR2-SDRAM (dual channel) 102.4 Gbit/s 12.8 GB/s
PC3-12800 DDR3-SDRAM (single channel) 102.4 Gbit/s 12.8 GB/s
PC2-8000 DDR2-SDRAM (dual channel) 128.0 Gbit/s 16.0 GB/s
PC2-8800 DDR2-SDRAM (dual channel) 140.8 Gbit/s 17.6 GB/s
PC2-10000 DDR2-SDRAM (dual channel) 160.0 Gbit/s 20.0 GB/s

[edit] Notes

  1. ^ TTY uses a Baudot code, not ASCII. This uses 5 bits per character instead of 8, and one start and 1.5 stop bits.
  2. ^ a b c d e f g h i j k l m n o p q Modems assumed to run set as serial, 1 start bit, 8 data bits, no parity, and 1 stop bit: therefore 10 bits are needed to transmit each 8-bit byte. Therefore, the byte column reflects the net data transfer rate after the protocol overhead has been removed
  3. ^ a b 110 baud modems run set with two stop bits. Assuming serial operation with one start bit, no parity, and 8 data bits as with other modems, this totals 11 bits per byte transferred.
  4. ^ a b c d 56K modems: V.90 and V.92 capacity can only be achieved when the upstream (service provider) end of the connection is digital. In addition, certain telecommunications administrations limit the signal strength the modem can transmit onto the telecommunications circuit, which in turn limits the actual maximum data rate to less than the theoretical maximum. In the USA, this limited the possible downstream maximum to 53.3 kbit/s.
  5. ^ 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 2 'B' channels and one 'D' channel. Each B channel provides 64 kbit/s bandwidth and the 'D' channel carries signalling (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 1 D-channel; in T1 regions the PRI carries 23 B-channels and 1 D-channel. The D-channel has different bandwidth on the two interfaces.
  6. ^ a b http://www.csn.ul.ie/~stephen/buses.html#isa
  7. ^ The Zorro II bus use 4 clocks per 16-Bit of data transferred. See the Zorro III technical specification for more information.
  8. ^ a b c d e f Note that PCI Express lanes use an 8B/10B encoding scheme.
  9. ^ a b c d Note that these Infiniband performance figures, as with most one tends to read, are given as full-duplex combined (or "aggregated") speeds, which effectively doubles InfiniBand's numbers as compared to the simplex numbers usually quoted for other standards. Also, InfiniBand uses an 8B/10B encoding scheme.
  10. ^ a b PCIe 2.0 effectively doubles the bus standard's bandwidth from 2.5 Gbit/s to 5 Gbit/s
  11. ^ SATA and SAS use an 8B/10B encoding scheme.
  12. ^ Fibre Channel 1GFC, 2GFC, 4GFC use an 8B/10B encoding scheme.
  13. ^ Fibre Channel 10GFC uses a 64B/66B encoding scheme, is not compatible with 1GFC, 2GFC and 4GFC, and is used only to interconnect switches.
  14. ^ FireWire (IEEE 1394b) uses an 8B/10B coding scheme.
  15. ^ 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.
  16. ^ Actual frame relay connections will vary in throughput from 8 kbit/s to 45 Mbit/s depending on configuration. Most are commonly below 2 Mbit/s.
  17. ^ 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 & SDSL connections have a higher bandwidth than T1 but their bandwidth is not guaranteed, and will drop when the system gets overloaded where as the T1 type connections are usually guaranteed and have no contention ratios.
  18. ^ DOCSIS 1.0 includes technology which first became available around 1995-1996, and has since become very widely deployed. DOCSIS 1.1 introduces some security improvements and Quality-of-Service (QoS).
  19. ^ DOCSIS 2.0 specifications provide increased upstream throughput for symmetric services.
  20. ^ DOCSIS 3.0 is currently in development by the CableLabs consortium and is slated to include support for channel bonding and IPv6.

[edit] See also

[edit] External links

Retrieved from "http://en.wikipedia.org/wiki/List_of_device_bandwidths"
Personal tools
In other languages