What do the numbers behind Intel Xeon processors mean?

Intel E3, E5 and E7 represent three different levels of Xeon CPU. Xeon's "E-Series" is named a bit like Core on a desktop.

"1" in E3- 1220 is the first number after the hyphen, which represents the maximum number of parallel channels supported by the processor. There are four specifications: 1, 2, 4 and 8, which respectively represent one channel, two channels, four channels and eight channels.

According to the size of L2 and L3 caches, different versions of Foster processors can be distinguished. The first released Foster DP will be equipped with a secondary cache of 256KB. Besides the secondary cache, Foster MP may also be equipped with a tertiary cache of 5 12KB or 65,438+0 MB. Such a large cache will have better performance in some programs that use the same data many times, such as databases.

Extended data:

The first digit of the four-digit font number represents the maximum number of processors, including unidirectional, bidirectional, four-way and eight-way. The second number represents the type of CPU socket. * * * There are four specifications. The first generation products 1, 2, 4, 6 and 8 represent BGA 1284, LGA 1 155, LGA 1356 and LGA20 168 respectively.

Xeon E3 is a single-channel processor family for workstations and entry-level servers. It has two sub-series, E3- 1 100 and E3- 1200. Besides E3- 1220L is dual-core, it also has four-thread and eight-thread models. Xeon E3 has the fastest update speed, and it is updated with consumer-grade Core i7 every year. Sockets are the same as consumer products, using LGA 1 155 and LGA 1 150. The model of the first/second/third generation products is E3- 1200/E3-65438+. E3 123 1 v3 and E3 1230 v3 are very cost-effective.

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