PCI and PCI-X are not directly compatible, and you’d be forgiven for thinking that means you’re out of luck if you need to use a PCI-X card in a machine that only has basic PCI slots.

PCIe superseded PCI and PCI-X. Unlike its PCI predecessor, which used a shared bus, PCI Express is a switched architecture of up to 32 independent, serial lanes (x1-x32) that transfer in parallel.

This is roughly the same as a PCI-X 64-bit connection (at 133 MHz) if four lanes are used (~1,064 MB/s). Here the PCIe lanes are clocked at 2.5 GHz, with differential signaling send/receive pairs ...

PCI was introduced with 33- and 66-MHz versions, and as performance requirements increased PCI-X® was introduced, running at speeds of 133- to 266-MHz. PCI Express is the next development in PCI ...

With a three year cadence between PCI-Express bandwidth increases and a three year span between when a gear shift is first ...

In addition to the high speed and limited pin count, its backward compatibility with legacy standards such as PCI and PCI-X have been major factors in driving the market adoption. PCI Express offers a ...

Despite the excitement surrounding this breakthrough, the prototype SSD is just that, and it's unlikely that consumers or ...