I want to know what technology Centrino is, and how about Centrino 2?

It is the brand name of wireless mobile computing technology for notebook computers released by Intel on March 6, 2003. Centrino is the abbreviation of two words: center and neutrino. It consists of three parts: mobile processor (CPU), related chipset and 802. 1 1 wireless network function module. Centrino brand is the first time that Intel has named a series of technologies with one name. Intel Centrino mobile computing technology is an innovative technology adopted by a new generation of notebook computers. The notebook computer equipped with this technology will make users get rid of the shackles of cables and truly realize working, studying, relaxing and surfing the Internet on the move. Moreover, while increasing the battery life, the notebook will become thin and light. This innovative technology not only brings brand-new performance and low power consumption to the notebook system, but also integrates wireless communication and security functions into the local chip.

From the product entity, Centrino mobile computing technology consists of three parts, namely, Centrino technology consists of chipset, mobile CPU and wireless LAN chip:

intel pentium m processor

Intel 855 Series Chipset Intel

Professional/wireless network connection

The new mobile CPU is the most noticeable. It abandoned Intel's previous naming method of adding MMobile(mobile) after the number of desktop CPU to represent the mobile version, and named the product Banias. The reporter interviewed at the scene.

Yang Xu, general manager of Intel China Company, confirmed to reporters that this new naming method will mark the development of Intel's mobile chips in an independent product sequence, and its product architecture will no longer be parallel to the desktop CPU. The frequency of the first Banias chip is1.60ghz. Intel also gives the comparison results of its "system performance value" with the 2.4GHz P4-M chip. In this test conducted by Intel itself, the score of Banias chip is higher than that of P4-M chip 15%. Mr. MacDonald also pointed out that the Banias chip has "excellent performance" due to the use of "new advanced instruction system, micro-operation merging technology and 1MB cache" and 400MHz system bus. Banias chip has outstanding advantages in energy consumption, calorific value and volume. In the test results given by Intel, the battery with the same capacity, the notebook computer using Banias chip can last for 6 hours and 6 minutes, while the Pentium 4-M, a special chip for Intel notebook computer using mobile technology, only lasts for 2 hours and 52 minutes, and the battery life has more than doubled. It has two characteristics: compared with Pentium 4, Centrino has wireless connection and mobile communication functions. With a notebook computer with Centrino installed, users can surf the Internet wirelessly where wireless connection points (or hotspots) are installed. The second function is to extend the power supply time of the battery for 7 hours at a time.

Generally speaking, the main features of Centrino technology are: integrating direct support for WLAN Wi-Fi; Reduce energy consumption, extend battery life and excellent computing performance. These three points are also the most important development trends of notebook computers this year.

What is Centrino 2?

SONOMA is Centrino 2!

The difference between the 2nd generation and the 1 generation:

CPU:

CPU is a Pentium M processor that we are familiar with, but it has been upgraded from the early Banias kernel to the current Dothan kernel. You may only know that the second-level cache of the latter is 2M larger than that of the former. In fact, there are some obvious advantages, not only in the improvement of secondary cache. The external frequency supported by Dothan is 533MHZ, which is much faster than Banias' 400MHZ, which can also explain why Dothan's startup frequency is much higher than Banias'. The process of Banias is 130 nm, while that of Dothan is 90 nm. Relatively speaking, the latter saves more electricity than the former, and the calorific value is further reduced. Accordingly, it also has Celeron version, the second cache is reduced to 1M, and Intel Speedstep power saving technology which Intel is proud of is cancelled.

Chipset:

Compared with the three components, the chipset changes the most. The chipset of the new Centrino II has been upgraded from 855M to 9 15M. Compared with the 855M chipset, the 9 15M chipset has brought many new functions, which can be said to make our eyes shine.

First of all, the 9 15M chipset fully supports the external frequency of 533MHZ, which can give full play to the advantages of Dothan CPU speed, without the embarrassing situation like that on the 855M chipset.

Secondly, the 9 15M chipset fully supports DDR2 memory. The so-called DDR2 memory is a dual-channel DDR memory, which is twice as fast as the DDR memory we usually use in theory, but the actual application data is about 40% higher. However, the dedicated DDR2 memory on laptops is still relatively expensive, and it is not recommended to upgrade in the near future. Unfortunately, the 9 15M chipset is not backward compatible with DDR memory. I'm worried that after the memory in our laptop "retires", we can't play the residual heat.

The 9 15M chipset also supports the brand-new PCI-Express X 16 bus graphics accelerator card. With the PCI-Express bus, we can replace the graphics card as easily as the PC card device-we can upgrade the graphics card as the desktop computer, which is great news! After using this notebook for several years, with the increase of software demand, the graphics card often cannot be upgraded (people's memory, hard disk and even CPU can be replaced quickly), which has become a heart disease in our friends' hearts. In the future, our graphics card will be made similar to the size of a credit card, as long as we insert it into the PCI-Express slot and install at most one driver. Writing here, I can't help thinking a lot, and then look at my T40 or AGP 4X graphics card, which is really embarrassing and helpless. However, we also enjoyed the "wireless infinity" for a year and a half before others, and we also had a lot of balance in our minds.

The 9 15M chipset also supports SATA hard disks. The so-called SATA hard disk, that is, serial ATA hard disk, has exactly the same standard as the serial ATA standard of computer, so you can refer to relevant materials. Limited to space, the author will not expand here. Fortunately, his old man's house has not completely abandoned the traditional ATA hard disk, otherwise it would be a pity.

The internal transmission speed of 9 15M chipset has also been greatly improved. I don't want to use the data of test software here to show that the result of a test software is not 100% accurate. Second, different hardware configurations have different effects, and the horizontal comparability is relatively poor.

There are three types of 9 15M chipset: 9 15PM, 9 15GM and 9 15GME. Although these three types of chipsets all belong to 9 15M chipsets, there are still great differences between them. 9 15PM has no integrated graphics card, so it needs extra loading. Generally used as a high-end notebook computer. 9 15GM integrates the Intel ExtremeGraphic2 display chip in the south bridge chip of the chipset. According to Intel, this performance is more than double that of the previous generation. Anyway, you still have to share the main memory anyway, which is slightly inferior to the contemporary discrete graphics card. 9 15GME chipset can be said to be a simplified version of 9 15GM chipset, which is specially tailored for Celeron CPU. Based on 9 15GM, the support for DDR2 memory and SATA hard disk is removed, depending on your requirements.

Wireless network card:

Finally, it should be the protagonist of Wireless Your Infinity-the wireless network card appeared. The wireless network card of Centrino generation only has IEEE802. 1 1b standard, but it has soared to IEEE802. 1 1a/b/g tri-band wireless network card in the second generation, which can be said to have covered all the mainstream wireless network standards in the world. In fact, these wireless network standards are not new technologies. They have existed for several years, but users are not as imposing as they are now. Relatively speaking, the limit speed that the tri-band wireless network card can achieve is faster, and it is also better from the perspective of security.

It seems that the second generation of Centrino is more "the waves behind the Yangtze River push the waves before" than the first generation. So how do we distinguish the two? You know, the label is the same. The author gives you two methods, corresponding to friends with good computer skills and ordinary friends respectively. For friends with good computer skills, they can directly access the BIOS (Basic Input/Output System) to check the CPU, chipset and wireless network card. If your computer level is quite average and you can enter the system, please open the "Processor" tab (CPU), "System Devices" tab (chipset) and "Network Adapter" tab in the device manager to view it, which will be clear to the world.

Now do you understand the difference between Centrino 1 generation and Centrino 2 generation? Then why are you still sitting here? Go to the computer market to buy a Centrino II notebook.