Comparing Data Transfer Rate of Digital Transmission Lines Around Us

The following is my compilation of various data transmission rate around us. I roughly converted values in M or Kbps to a more meaningful KB/s or MB/s, and then sorted them by transfer rate from slowest to fastest.

* CSD: 9.6 kbps, roughly 1 KB/s
* HSCSD 3+1: 43.2 Kbps downstream, roughly 4 KB/s
* V.90 over telephone lines: 50 kbps downstream, roughly 5 KB/s
* GPRS class 8: 57.6 Kbps downstream, roughly 5 KB/s
* I2C (standard): 100 Kbps, roughly 10 KB/s
* IrDA (typical SIR): 115800 bps, roughly 11 KB/s
* RS-232 serial port: 115800 bps, roughly 11 KB/s
* CDMA2000 1xRTT: 144Kbps, roughly 14 KB/s
* ISDN BRI: 144 Kbps, roughly 14 KB/s
* EDGE: 384 Kbps, roughly 38 KB/s
* UMTS: 384 Kbps, roughly 38 KB/s
* I2c (fast): 400 Kbps, roughly 40 KB/s
* Bluetooth 1.1: 723 Kbps, roughly 70 KB/s
* USB 1.1 (slow rate): 1.5 Mbps, roughly 150 KB/s
* Parallel port (SPP): 150 KB/s
* ISDN PRI T1: 1.544 Mbps, roughly 154 KB/s
* SDSL (2 pair full-duplex): 2Mbps (under 5Km length), roughly 200 KB/s
* ADSL (1 pair half-duplex): 2Mbps (under 5Km length), roughly 200 KB/s
* ISDN PRI E1: 2.048 Mbps, roughly 200 KB/s
* CDMA2000 1xEV-DO: 3.1Mbps, roughly 300 KB/s
* VDSL (1 pair half-duplex): 3Mbps (under 5Km length), roughly 300 KB/s
* I2c (high): 3.4 Mbps, roughly 340 KB/s
* IrDA (typical FIR): 4 Mbps, roughly 400 KB/s
* Ethernet: 10 Mbps, roughly 1MB/s
* Parallel port (EPP): 1 MB/s
* 802.11b: 11 Mbps, roughly 1.1 MB/s
* USB 2.0 full speed: 12 Mbps, roughly 1.5 MB/s
* Parallel port (ECP): 2 MB/s
* E3: 34.064 Mbps, roughly 3.4 MB/s
* T3: 44.736 Mbps, roughly 4.4 MB/s
* Original SCSI: 5 MB/s
* 802.11g: 54Mbps, roughly 5 MB/s
* 802.11a: 54 Mbps, roughly 5 MB/s
* OC-1: 51.84 Mbps, roughly 5.2 MB/s
* FastEthernet: 100 Mbps, roughly 10MB/s
* Fast SCSI: 10 MB/s
* OC-3: 155.54 Mbps, roughly 15.5 MB/s
* Original ATA: 16.7 MB/s
* Wide SCSI: 20 MB/s
* Ultra SCSI: 20 MB/s
* Ultra Wide SCSI: 40 MB/s
* ATA-33: 33MB/s
* Ultra2 SCSI: 40 MB/s
* Firewire 400: 400 Mbps, roughly 40 MB/s
* OC-9: 466.56 Mbps, roughly 46.6 MB/s
* USB 2.0 high speed: 480 Mbps, roughly 57 MB/s
* OC-12: 622.08 Mbps, roughly 62.2 MB/s
* ATA-66: 66 MB/s
* Ultra2 Wide SCSI: 80 MB/s
* Firewire 800: 800 Mbps, roughly 80 MB/s
* OC-18: 933.12 Mbps, roughly 93.3 MB/s
* Gigabit Ethernet: 1000 Mbps, roughly 100MB/s
* ATA -100: 100 MB/s
* OC-24: 1244.16 Mbps, roughly 125 MB/s
* PCI bus: 133MB/s
* ATA-133: 133 MB/s
* Serial ATA: 150 MB/s
* Ultra 3 SCSI: 160 MB/s
* OC-36: 1866.24 Mbps, roughly 186 MB/s
* OC-48: 2488.32 Mbps, roughly 250 MB/s
* AGP port: 266MB/s
* Ultra-320 SCSI: 320 MB/s
* PCI 2.2 bus: 533 MB/s
* AGP 2x port: 533 MB/s
* PCI-X bus: 1066 MB/s
* AGP 4x port: 1066 MB/s
* PCI-X 2.0 bus: 2133 MB/s
* AGP 8x port: 2133 MB/s
* PCI-Express bus: 4GB/s

Any correction? Anything else to add to this list?

*Update*: addition from [Ronny](http://ronny.haryan.to) and [Jay](http://yulian.firdaus.or.id).

*Update*: added several 3G technologies

8 comments

  1. WiFi 802.11b: 11Mbps in aggregate half-duplex
    WiFi 802.11g: 54Mbps in aggregate half-duplex
    ATM: 155Mbps
    ADSL (1 pair half-duplex): 2Mbps (under 5Km length)
    VDSL (1 pair half-duplex): 3Mbps (under 5Km length)
    SDSL (2 pair full-duplex): 2Mbps (under 5Km length)

  2. You mentioned Eth, FastEth and GigE, but missed 10-GigE: 10 Gbps.

    ATM does not define the data rate like ISDN or T1/E1. ATM defines how to transport the data, similar to Frame Relay. Maybe 155 Mbps is the most common ATM using OC-3 (which defines the speed: 155 Mbps), but it can go up to multi-gigabit data rate (e.g. using OC-48 you get about 2 Gbps).

    Types and data rate of leased lines:

    ISDN BRI: 64 or 128 Kbps (1 or 2 B channels) + 16 Kbps (D channel) = 144 Kbps
    ISDN PRI T1: 1.4375 Mbps (23 B channels) + 64 Kbps (D channel) = 1.544 Mbps
    ISDN PRI E1: 1.875 Mbps (30 B channels) + 64 Kbps (D channel) = 2.048 Mbps
    E3: 34.064 Mbps
    T3: 44.736 Mbps
    OC-1: 51.84 Mbps
    OC-3: 155.54 Mbps
    OC-9: 466.56 Mbps
    OC-12: 622.08 Mbps
    OC-18: 933.12 Mbps
    OC-24: 1244.16 Mbps
    OC-36: 1866.24 Mbps
    OC-48: 2488.32 Mbps

    Broadband:

    ADSL download can go up to 8 Mbps actually but not very common.
    SDSL and HDSL emphasizes on the symmetricity(?) ranging from 1.5 to 2 Mbps.
    Other less common DSL types: IDSL 144 Kbps up/down, RADSL 64 Kbps – 8 Mbps down and 16 to 768 Mbps, CDSL (G.lite) 1 Mbps down and 16 – 160 Kbps up.
    Cable modem: 30 – 40 Mbps

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