PCI Express Lanes help

[robertbiferi]

Am I right that the way PCI Express Lanes works is like this

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Which is faster, PCI or PCI Express?
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Slot Types


Bandwidth Table
PCI 133 MB/s
AGP 8X 2,100 MB/s
PCI Express 1x 400 MB/s
PCI Express 4x 1600 MB/s
PCI Express 8x 3200 MB/s
PCI Express 16x 6400 MB/s
IDE (ATA100) 100 MB/s
IDE (ATA133) 133 Mb/s
SATA 150 MB/s
SATA II 300 MB/s
Firewire 400 Mb/s
USB 1 12 Mb/s
USb 2 480 Mb/s
Gigabit Ethernet 1000 Mb/s

PCI Express
Since PCI Express is a serial based technology, data can be sent over the bus in two directions at once. Normal PCI is Parallel, and as such all data goes in one direction.

Each 1x lane in PCI Express can transmit in both directions at once. In the table the first number is the bandwidth in one direction and the second number is the combined bandwidth in both directions. Also please note that in PCI Express bandwidth is not shared the same way as in PCI, so there is less congestion on the bus.

The "x" in an "x16" connection stands for "by." PCIe connections are scalable by one, by two, by four, and so on.

When the computer starts up, PCIe determines which devices are plugged into the motherboard. It then identifies the links between the devices, creating a map of where traffic will go and negotiating the width of each link.

Each lane of a PCI Express connection contains two pairs of wires -- one to send and one to receive. Packets of data move across the lane at a rate of one bit per cycle. A x1 connection, the smallest PCIe connection, has one lane made up of four wires. It carries one bit per cycle in each direction. A x2 link contains eight wires and transmits two bits at once, a x4 link transmits four bits, and so on. Other configurations are x12, x16 and x32.???

 

[StrangleHold]

Am I right that the way PCI Express Lanes works is like this

PCI Express
Since PCI Express is a serial based technology, data can be sent over the bus in two directions at once. Normal PCI is Parallel, and as such all data goes in one direction.

Each 1x lane in PCI Express can transmit in both directions at once. In the table the first number is the bandwidth in one direction and the second number is the combined bandwidth in both directions. Also please note that in PCI Express bandwidth is not shared the same way as in PCI, so there is less congestion on the bus.

The "x" in an "x16" connection stands for "by." PCIe connections are scalable by one, by two, by four, and so on.

When the computer starts up, PCIe determines which devices are plugged into the motherboard. It then identifies the links between the devices, creating a map of where traffic will go and negotiating the width of each link.

Each lane of a PCI Express connection contains two pairs of wires -- one to send and one to receive. Packets of data move across the lane at a rate of one bit per cycle. A x1 connection, the smallest PCIe connection, has one lane made up of four wires. It carries one bit per cycle in each direction. A x2 link contains eight wires and transmits two bits at once, a x4 link transmits four bits, and so on. Other configurations are x12, x16 and x32.???

Yeah, thats right more or less. This explains it alittle better.
http://www.interfacebus.com/Design_Connector_PCI_Express.html