2.2.01b. Machine architecture (by distance) | Lightenna

2.2.01b. Machine architecture (by distance)

Distance from chip determines minimum latency
Speed of light is a constant
Impact of bus frequencies

IDE (66,100,133 Hz)
PCI, PCI-X (66,100,133 Hz)
PCI Express (1Ghz to 12Ghz)

Impact of bus bandwidths

PCI (32/64 bit/cycle, 133MB/s)
PCI Express (x16 8.0GB/s)

Computer components by distance from processor

Here's a link from Intel showing a machine architecture with signal bandwidths: Intel diagram

s5 slideshow