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What is the speed difference between PCI and ISA expansion slots?
Wiki User
∙ 9y ago
Physically, PCI slots are light-colored (usually white) and much smaller than the black ISA slots.
Computationally, PCI technology was designed to automatically assign address information to the hardware plugged into it. This was a vast improvement over ISA technology which required a considerable amount of manual configuration.
Wiki User
∙ 15y ago
Wiki User
∙ 10y agoPCI was the original invention for adding a graphics card (GPU) to the computer. Then they came up with AGP, to utilize a different and more efficient way of connecting the GPU to the computer. And now modern machines use PCI Express. AGP is pretty much completely obsolete.
Wiki User
∙ 9y agoISA was introduced by IBM in 1982 and has a maximum data rate of 8 Mb per second. PCI, on the other hand, was introduced 10 years later and has a maximum data rate of 132 Mb per second.
Wiki User
∙ 15y agoAn ISA slot runs at 8 MHz and has a bus width of 8 or 16 bits. PCI runs at 33 or 66 MHz and has a 32-bit or 64-bit bus width. So PCI is much faster than ISA.
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