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Interface Speeds from the Reference Library at CompuClues
Computer Interface Speeds
Date: June 1, 2001
Submitted by: NoClue

Speeds of various computer interfaces

 Keeping track of the speeds of the various computer interfaces can be tricky, especially when some of them are listed in Megabits per second and others in Megabytes per second.  I had put together a list a few years ago, but it was a little dated (no ATA-100, Ultra160 or 320 SCSI, etc.).  Here is the updated list in Megabytes per second.
 

        
I/O Interface
  
Maximum Speed (MB/sec.)
10 MB Ethernet 1.28 MB/sec.
100 MB Ethernet 12.80 MB/sec.
1 GB Ethernet 131.00 MB/sec.
IEEE 802.11 WLAN 0.25 MB/sec
IEEE 802.11a WLAN 6.75 MB/sec
IEEE 802.11b WLAN 1.38 MB/sec
IEEE 802.11g WLAN 6.75 MB/sec
IEEE 802.15 WLAN (Bluetooth) 0.25 MB/sec
Standard Parallel 0.15 MB/sec.
Enhanced Parallel (ECP and EPP) 3.00 MB/sec.
USB 1.50 MB/sec.
USB 2.0 60.00 MB/sec
IDE/EIDE PIO Mode 0 3.30 MB/sec.
IDE/EIDE PIO Mode 1 5.20 MB/sec.
IDE/EIDE PIO Mode 2 8.30 MB/sec.
IDE/EIDE PIO Mode 3 11.10 MB/sec.
IDE/EIDE PIO Mode 4 16.70 MB/sec.
UDMA/33 33.00 MB/sec.
UDMA/66 66.00 MB/sec.
ATA 100 100.00 MB/sec.
ATA 133 133.00 MB/sec.
Serial ATA 150.00 MB/sec.
Serial ATA II 300.00 MB/sec.
Serial ATA III 600.00 MB/sec.
IEEE 1394 S100 (Firewire) 8.00 MB/sec
IEEE 1394 S200 (Firewire) 24.58 MB/sec
IEEE 1394 S400 (Firewire) 49.15 MB/sec
IEEE 1394b S800 (Firewire) 100.00 MB/sec
IEEE 1394b S1600 (Firewire) 150.00 MB/sec
IEEE 1394b S3200 (Firewire) 300.00 MB/sec
IrDA 1.1 1.50 MB/sec
SCSI 1 5.00 MB/sec.
SCSI 2 10.00 MB/sec.
SCSI 2 Wide 20.00 MB/sec.
Ultra SCSI 20.00 MB/sec.
Ultra Wide SCSI 40.00 MB/sec.
Ultra 2 SCSI 80.00 MB/sec.
Ultra 160 SCSI 160.00 MB/sec.
Ultra 320 SCSI 320.00 MB/sec.
Serial Storage Architecture (SSA) 20.00 - 40.00 MB/sec.
Fiber Channel (FC-AL) 100.00 - 200.00 MB/sec.
ISA-8 8.30 MB/sec
ISA-16 16.60 MB/sec
EISA 33.33 MB/sec
PCI 2.0 133 MB/sec
PCI 2.1 266 MB/sec
PCI 2.2 532 MB/sec
PCI-X 1066 MB/sec
AGP 1X 266 MB/sec
AGP 2X 533 MB/sec
AGP 4X 1066 MB/sec
AGP 8X 2133 MB/sec
PCMCIA 20 MB/sec
PC Card 132 MB/sec

 
I hope this is helpful.  

Keep in mind that these are maximum speeds...just 'cause the pipe is that fat, doesn't mean you're pushing that much data through it.

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