1. The basic identification method is the framework
We all perform basic installation of anti-virus software. We can call it the ontology or framework. All future upgrade packages will be filled around this framework. The same is true for CPU coding. The standard CPU numbers provide basic parameters, such as main frequency, secondary cache, front-side bus, family affiliation, and some more important overclocking information. Being able to identify the CPU number yourself is a basic skill for a DIYer. When we assemble a new machine, we need to identify the overall performance of the CPU through the number, confirm whether it has been packaged by JS, and whether it has excellent overclocking capabilities. Therefore, the CPU number is crucial for DIY players.
These codes are marked on the casing, but depending on the material of the CPU casing, the number may be printed on the label or engraved on the casing. For example, if the CPU is packaged in a metal casing that is conducive to heat dissipation, the number will be engraved on the metal casing. If the CPU uses a normal package, the number will be printed on the label on the surface of the CPU.
The code printed on the CPU shell
(1) Intel: Code recognition method can kill the CPU
The anti-virus software is not updated much, which does not mean the anti-virus capability Not strong. We can think of it as a learning anti-virus software. Before the emergence of viruses developed with alternative thinking, there is no need to upgrade or replace the anti-virus software that everyone is accustomed to. This is the Intel coding standard. On the casing of Intel CPU, there are generally five lines of coding information, including Intel trademark, product series model, core specification definition, S-Spec number and place of origin. Currently, Intel's most popular "button meat" product series models are composed of a prefix letter plus four digits, and the marking format is the letter + XXXX, such as Core 2 Duo E6550. Here we take the mainstream Intel Pentium E2140 and Core 2 Duo E4500 processors as examples to talk about encoding information in detail.
Coding recognition that remains unchanged and adapts to ever-changing conditions
The current Intel CPU coding recognition method has been around for a long time. Before the emergence of CPUs with new architectures, Intel did not provide a recognition method. The intention of “upgrading”.
Intel Pentium E2140 encoding string on the CPU shell
The first and second lines of characters indicate the product family. Among them, "E" represents the range of processor TDP (thermal design power consumption), mainly for desktop processors. In addition, there are several types such as T, L and U. Those starting with "T" are more common on mobile platforms. "L" and "U" represent low-voltage version and ultra-low-voltage version respectively, which have lower energy consumption. The last four digits have become more difficult to identify due to the successive introduction of new and old processors. Intel's official information only lists the processor models without detailed explanation. We can only summarize some "unofficial" rules that are currently applicable: When the prefix letters are the same, the larger the numbers, the greater the specifications of the product series. High, the following three digits indicate the specific product model. The larger the number, the higher the specification. The words "PENTIUM" and "DUAL-CORE" on the second line indicate that the processor is a Pentium dual-core processor.
The third line of SLA3J characters is the S-Spec number. This number usually starts with SL. The following letters and numbers only correspond to a specific frequency, cache, FSB and step processor. . General users cannot directly see its meaning. You can enter these letters and numbers in the sSpec Number column on Intel's official website/default.aspx to get detailed information about the CPU. MALAY indicates that the packaging place is Malaysia.
The fourth line of characters indicates that the processor has a main frequency of 1.6GHz, a secondary cache of 1MB, and a front-side bus frequency of 800MHz. 06 represents that its core step number is L2 (for knowledge about stepping, Please refer to the 49th issue of "Hardware Evaluation Weekly" (Technical Space) in 2007). For us ordinary users, this line is the most important. It tells us several important parameters of the CPU.
The last line of numbers represents the serial number of the processor, which represents the production number and other information.
Tips: According to the difference in TDP power consumption, Intel desktop Conroe processors are divided into four levels: E, T, L, and U. Those starting with E are products above 50W, mainly for desktops. Processor; products starting with T are 24-49W products, mainly mobile processors; L represents low-voltage products of 15-24W; U represents ultra-low voltage versions below 14W.
Earlier we taught you how to identify the Intel Pentium E2140 code. This method also applies to Core 2 Duo E4500. Intel Core 2 Duo E4500 encoded characters: INTEL 05 E4500, INTEL CORE 2 DUO, SLA95 MALAY, 2.20GHZ/2M/800/06, L732A771. We rookies directly grasped the key encoding 2.20GBHZ/2M/800/06, so we learned that this is a Core 2 Duo E4500 with a main frequency of 2.2GHz, a secondary cache of 2MB, and a front-side bus frequency of 800MHz.
(2) AMD: Apply identification upgrade package
Software upgrade package is to make the software more suitable for users. The new number identification method introduced by AMD this time is to allow consumers to get more information from the number. In order to let everyone understand the new number, we compare Athlon X2 BE-2350 and Athlon64 X2 400 for explanation.
Standard identification method
Looking at the performance parameters of the two, we can even call Athlon X2 BE-2350 an upgraded version of Athlon64 X2 4000 + TDP of 45W. Comparing the two marking methods, what has not changed are the words "Athlon" and "X2", which respectively indicate that the product is the Athlon series and the number of cores is 2.
Where to identify the upgrade?
There are many standard identification methods introduced. Let’s focus on the improvements made in the new patch. You can't see "64" on the Athlon X2 BE-2350, because 64-bit CPUs are already everywhere, there is no need to hype this concept anymore, and removing it makes the model simpler. In addition, "BE-2350" can express a much larger amount of information than "400". We can only distinguish the CPU model from "400", and the performance parameters it represents are very limited. "BE-2350" is different.
As shown in the figure, the first letter represents market positioning, "B" represents the mid-range mainstream, and "G" and "L" represent high-end and entry-level respectively.
The second letter represents TDP, "E" represents Energy Efficiency, which represents low power consumption, "P" represents greater than 65W, and "S" represents about 65W. From writing the power consumption into the model Everyone can appreciate the importance AMD attaches to power consumption.
"2350" can be divided into three parts. The first number represents each product family. From the latest AMD labeling information we obtained, the 1000 series represents Sempron/Athlon single core and the 6000 series represents Athlon dual-core (the 2000 series currently representing Athlon dual-core is likely to be replaced by the 6000 series), the 8000 series represents the Phenom triple-core, and the 9000 represents the Phenom quad-core.
This is not the same as the labeling method we know before. After determining which family the CPU is, the second number tells us the frequency level of the chip, and the rest is reserved for other additional functions. So "BE-2350" tells us that it is a mid-range, TDP lower than 65W, Athlon dual-core product.
The latest AMD CPU naming rules, the 2000 series representing the Athlon dual-core has been replaced by the 6000 series
Encoding recognition has the same root
During the anti-virus software upgrade period, the two It is very normal for two versions to exist in the world. Although the anti-virus software versions are different, their anti-virus principles are basically the same. The same is true for identifying codes. Although AMD has two naming conventions, old and new, the coding identification methods on the shell are very similar.
As shown in the figure, the two CPU encoding characters*** are divided into four lines. The first line indicates the AMD trademark and processor type. You can see that it is an Athlon series product, and according to the latest CPU Naming rules, we can't see the word 64 in the encoding of Athlon LE-1620.
AMD Athlon LE-1620 encoded characters
AMD Athlon64 X2 480 encoded characters
The second line defines the core specifications. From this line we can get the basic specifications of the CPU Parameters such as cache, voltage, etc. We divide the specifications into 8 sections for understanding. The first section consists of two letters, indicating which series the CPU belongs to, AD/SD/OS, respectively representing Athlon (64)/Sempron/Opteron. The second paragraph uses a letter to represent TDP, A/O/D represents standard/65W/35W respectively. The "H" in Athlon LE-1620 has not been officially confirmed, but we can boldly guess that it represents low power consumption. "1620" is the third segment, which is part of the product model "Athlon LE-1620". The fourth section is the interface, and "I" is the mainstream Socket AM2 interface. The fifth segment "A" and the sixth segment "A" represent the operating voltage and case temperature respectively. The second-level cache in the seventh segment is represented by numbers. 3/4/5/6 respectively represent 128KB/256KB/512KB/1MB/2MB. Please be reminded that if it is a dual-core product, it needs to be divided by 2, as shown in the figure Athlon64 The last two letters are made of the core. For example, "DH" means using the 65nm Lima core.
The CCBVF 0741CPMW in the third line is the core cycle definition. Please pay attention to "0741", which indicates that the production date of this processor is the 41st week of 2007.
The last line represents the product serial number. If you buy a boxed product, this needs to be consistent with the verification code of the box, otherwise you have to consider whether you have bought a fake boxed product.
2. Summary
Through the methods we introduced, everyone must have a certain grasp of the identification of current mainstream CPU numbers and models. Of course, these methods must be used flexibly in actual combat, so that more CPU parameter information can be read and the CPU performance can be estimated.