What is the CPU pin

The CPU pins are the type of interface, and we know that the CPU needs to be connected to the motherboard through an interface to work. After so many years of development of the CPU, the use of the interface has a PIN type, cassette, touch-type, such as pin-type. The current CPU interface is a pin-type interface, corresponding to the motherboard on the corresponding slot type. CPU interface type is different, in the number of Jacks, volume, shape changes, so can not be plugged into each other.

CPU Pins

Currently the CPU is connected to the motherboard with a PIN interface, and the CPUs of different interfaces differ in number of pins. The name of the CPU interface type, used to indicate the number of pins, such as the current Pentium 4 series processor Socket 478 interface, its needle CPU foot number is 478 pins, and Athlon XP series processor Socket 939 interface, The number of pins on the CPU is 939 stitches.

In principle, the CPU performance and the number of pins is not related to, and CPU pins are not every stitch is working, that is, in fact, there are some pins on the CPU does not have any effect of the "device", is idle up. This is because the CPU manufacturer, when designing the CPU, is bound to take into account the functional expansion and performance improvements over time, while reserving some temporarily inoperative pins for future improvement. But with the development of CPU technology, more and more CPU pins are needed to achieve richer functionality and higher performance, such as the number of pins needed to integrate a dual-channel memory controller more than the number of pins needed to integrate a single channel memory controller, so there is a growing tendency to increase the number of CPU pins. You can basically think of a CPU with more pins and more advanced architecture. But nothing is absolute, for example, the number of pins that AMD uses to replace socket 754 on mobile platforms is reduced from 754 to 638 S1.