apart from the Core series named after i3, i5, i7 and i9, Intel also has well-known Xeon, Atom, Pentium, Celeron, An Teng and Quark series, all of which belong to Intel. ?

Celeron, Pentium and Core series are mostly used in ordinary computers; Xeon and An Teng series are mostly used in servers; Atom series is mostly used in mobile phones and tablets; Quark series is mostly used in wearable devices and Internet of Things devices. Why is Intel divided into multiple brands? Intel's multi-series brands can not only improve consumers' recognition, but also have some early reasons: when AMD sold the "8386" processor, Intel ranked second. Intel sued AMD for trademark infringement.

but lost because "8386" is the actual part number. Later, Intel introduced "486": "8" was missing in the front, and the part number was not "486". AMD began to sell the "486" processor, and Intel filed a lawsuit. The court ruled that "486" is not unique enough, and customers will take it for granted that it is part of the part number, especially "8286" and "8386" have long been abbreviated as "286" and "386" by the media and the public. Contents of the trademark that cannot appear in the Trademark Law:

1. Descriptive name, for example, if a Dual-Core processor is not made, it is named "dual-core", and then a trademark is registered for the name and it is expected that the trademark will remain. 2, part number, competitors can use the same part number as its part name.

this is why the next processor of Intel "486" is called "Pentium". This no longer looks like a part number, so Intel succeeded in stopping AMD from selling compatible processors under the name of Pentium. Since then, Intel has always adhered to this principle.

for example, "i3" is not named "i3" but "Intel

Core

i3". Even the "i3" part doesn't involve the processor, so the intentional design can help the trademark protection. Why are there no i2, i4, i6 and i8 in the Core series? Why are there no i2, i4, i6 and i8 in the Core series? This is a problem that has puzzled us for a long time.

1. Some people have made an analysis from the perspective of marketing: marketers believe that most people prefer "odd numbers" to "even numbers". For example, BMW X series classifies and markets vehicles of various levels, with 3 series as entry-level products, 5 series as booster products and 7 series as high-end products. Therefore, Intel's marketing department may require that instead of numbering only 1, 2, 3 and 4, it is better to use odd numbers, which can help consumers understand Intel processors and their purchased performance levels more quickly.

With the release of Nehalem microarchitecture in November 28, Intel introduced a new naming scheme for its core processors, which has three variants: Core

i3, Core

i5 and Core

i7. Names no longer correspond to specific technical functions, such as the number of cores. Instead, the Core brand is divided from low-end (i3) to mid-range (i5) to high-end performance (i7), corresponding to three, four and five stars of Intel processor rating. Start with the entry-level Celeron (one star) and Pentium (two stars) processors.

second, someone made an analysis from the perspective of production and sales: when Intel released the first generation of Core I series products, many people engaged in chip production and sales didn't know the exact meaning of the number in the name ix, but distinguished it by the number of processors that were roughly equivalent to single-core processors.

The reasoning goes like this: Hyper-threading does not completely constitute the real core performance level, but only one core acts as two cores. Therefore, the dual threads of generation i3 +

2 threads from hyper-threading are more equivalent to 3 cores than 3 cores. Most generation i5 are quad-core without hyper-threading, but their performance is roughly equivalent to that of 5-core core2quad by using L3 cache that the previous generation single-core chips didn't have. ? Of course, the first generation i7 has 4 cores+

4 extra threads through hyper-threading. Therefore, their performance may be slightly lower than 8 cores when they are added together and considering that 4 threads are not real cores. The naming of i9 series also keeps the trend.

mobile chips are an exception, and these L3 caches can usually help make up for this gap, and some low-power i7s are closer to mobile i5.

third, someone made an analysis from a technical point of view: for example, a program runs under a 4-thread CPU, corresponding to the four threads of the system: logic core , logic core 1, logic core 2 and logic core 3.

generation i3: 2 cores and 2 hyper-threads, and the maximum number of threads/logical cores is 2x2

= 4. The last logical core is called logical core 3. Therefore, its product is named i3. Generation i7: 4 cores and 4 hyper-threads, and the maximum number of threads/logical cores will be 4x2 =

8. The last logical core is called logical core 7.

therefore, it was named product i7. The first generation i5: i5 processor does not support hyper-threading, but has four cores, and the maximum number of threads/logic cores is 4x1

= 4. The last logical core is called logical core 3. But the performance is between i3 and i7, so it is named i5.

We haven't attended Intel's conference on naming the Core series, so we don't know the exact reason why ix was named. However, I prefer to believe that the analysis made from the perspective of marketing and the naming method of the Core brand from low-end, terminal and high-end performance will help consumers understand the Intel processor and its purchased performance level faster.

because the later ix naming goes, the less technical logic there is. The above personal opinions, welcome criticism and correction. You can follow me if you like, thank you! Those who agree with me, please like it before you go, thank you again!