PCI-E... I/O's


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Subject: PCI-E... I/O's
Name: LED
Date: 2/26/2005 4:50:22 PM (GMT-7)
IP Address: 4.225.91.245
In Reply to: Re: I/O Maximum Speeds posted by Bob
Message:

PCI Express 1x 250 [500]* MB/s
PCI Express 2x 500 [1000]* MB/s
PCI Express 4x 1000 [2000]* MB/s
PCI Express 8x 2000 [4000]* MB/s
PCI Express 16x 4000 [8000]* MB/s
PCI Express 32x 8000 [16000]*


*Note - Since PCI Express is a serial based technology, data can be sent over the bus in two direction. Normal PCI is Parallel, and as such all data goes in one direction around the loop. Each 1x lane in PCI Express can transmit in both directions. In the table the first number is the bandwidth in one direction and the second number is the combined bandwidth in both directions.


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