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  • Cpu optional entry Raiders. 2017 - 06 - 20

    CPU frequency higher the better?

      Cpu clock speed, that is, cpu kernel clock frequency (CPU Clock Speed). Usually see the cpu parameters 2.5GHz, 3.4GHz, etc. refers to the CPU frequency Cpu performance as an important parameter, cpu clock speed and computing speed although there is no direct relationship between, but the speed of the operation is very important to enhance.

      In the absolute environment (excluding the impact of external hardware), with the series of cpu frequency higher, the faster the computer or mobile phone processing. For example, 2GHz frequency cpu processing speed is 1GHz frequency cpu twice, intuitive feel is the system to run faster, the game loads faster. Single cpu frequency higher the better means that the better performance?

    Cpu optional entry Raiders.

     What are the factors that affect CPU performance?

      In fact, to determine the performance of a cpu strength, in addition to watching cpu frequency, but also need to see the core of the cpu, the number of threads and cache capacity of these important indicators.

      Core, also known as the core, that is, we usually say "how many nuclear" is the most important part of cpu. Cpu all the calculation, acceptance / storage commands, processing data from the core implementation. In the case of the same brand and all the core work, the more the core, the faster the processing (the emphasis here with the brand because of the process process is different, sometimes AMD8 nuclear far less than Intel4 core).

      Thread is the ability to handle tasks at the same time cpu, usually the number of threads and cpu core number corresponds to the number of core corresponding to the number of threads. The intel Hyper-Threading technology through special instructions to simulate the two logical cores into two physical Hyper-Threading chip, in a core to achieve dual-threaded, make full use of cpu idle resources, improve performance. To be careful here, some businesses will use the computer system to show the problem of dual-core 4-thread U as a 4-core to the pit of consumers, so when the best time to use software to identify it.

    Cpu optional entry Raiders.

      Caching is a component that reduces the average time required for a processor to access memory, which has a very significant impact on cpu performance. General cache capacity is smaller than memory, but faster than memory. Cpu will first retrieve or read data in the cache, so the cache capacity and quantity directly related to the speed of speed. The current processor cache has a cache, two cache, three cache, the greater the cache capacity, the higher the cache level, cpu processing faster. In addition, cpu performance will be subject to architecture, process processes and other hard components of the impact.

     

     

  • What is the CPU frequency? 2017 - 06 - 20

      CPU clock speed, that is, CPU clock speed (CPU Clock Speed). What is commonly said that the CPU is a number of megahertz, and how much this is the clock speed of the CPU. Many people think that the CPU is the frequency of its running speed, it is not true. CPU frequency indicates that the pulse speed of the digital pulse signal in the CPU is not directly related to the actual computing power of the CPU. There is a certain relationship between the frequency and the actual operation speed, but there is no definite formula to quantify the numerical relationship between the two, because the CPU computing speed depends on the CPU of the various aspects of the pipeline performance indicators (cache, instruction set , CPU bits, etc.).

    What is the CPU frequency?

      As the frequency is not directly on behalf of the speed of operation, so in certain circumstances, it is likely that there will be a higher frequency of the actual CPU operating speed is low. Such as AMD's AthlonXP series CPU can be a lower frequency, to Intel's Pentium 4 series CPU higher frequency CPU performance, so the AthlonXP series CPU to PR value of the way to name. So the frequency is only one aspect of CPU performance, rather than the overall performance of the CPU.

      CPU clock speed does not mean the speed of the CPU, but to improve the clock speed for improving the CPU speed is essential. For example, assume that a CPU in a clock cycle to execute an operation instruction, then when the CPU running at 100MHz frequency, it will run at 50MHz frequency faster than twice. Because the 100MHz clock cycle than the 50MHz clock cycle time is reduced by half, that is, work in the 100MHz frequency of the CPU to perform an operation instruction time is only 10ns than the 50MHz frequency in the work of 20ns shortened by half of the natural operation The speed is twice as fast.

      But the overall speed of the computer depends not only on the CPU speed, but also with the operation of other sub-systems, only to improve the frequency at the same time, the sub-system speed and sub-system data transfer between the speed Get improved, the overall speed of the computer can really be improved.

      Improve the CPU work frequency is mainly limited by the production process. Since the CPU is fabricated on semiconductor silicon chips, wires are required to be connected between the components on the silicon chip. As the wires are required to be as thin as possible in the high frequency state, it is possible to reduce the spurious interference such as the distributed capacitance of the wires To ensure that the CPU operation is correct. So the manufacturing process constraints, CPU frequency is one of the biggest obstacles to the development.

    What is the CPU frequency?

      Memory frequency and CPU frequency, the habit is used to represent the speed of memory, it represents the memory can achieve the highest operating frequency. The memory frequency is measured in MHz (MHz). The higher the memory frequency to a certain extent, represents the faster the memory can reach. Memory frequency determines the maximum memory in what kind of frequency to work properly. Currently more mainstream memory frequency is 667MHz and 800MHz DDR2 memory, and 1333MHz DDR3 memory. More high-end to GHz calculation, such as high-end enterprise demand frequency 2.4GHz.

      Speaking of processor frequency, it is necessary to mention closely related to the two concepts: frequency and FSB, FSB is the CPU reference frequency, the unit is MHz. FSB is the speed between the CPU and the motherboard running simultaneously, and the vast majority of the current computer system FSB is also the speed of synchronization between memory and motherboard, in this way, can be understood as the CPU FSB directly with Memory connected to achieve the synchronization between the two running state; frequency that is the frequency and FSB ratio of multiple. Frequency, frequency, frequency, the relationship: frequency = FSB frequency. Early CPU did not double the concept of frequency, then the frequency and system bus speed is the same.

      With the development of technology, CPU speed faster and faster, memory, hard drives and other accessories gradually can not keep up with the CPU speed, and the emergence of frequency to solve this problem, it can make memory and other components still work in a relatively low System bus frequency, while the CPU frequency can be multiplied by unlimited upgrade (theoretically).

      We can regard the FSB as a machine within a production line, and frequency is the number of production lines, a machine production speed (frequency) is the speed of the production line (FSB) multiplied by the number of production lines (Multiplier). Now the manufacturers have basically have doubled the lock, to overclocking only from the FSB start, through the multiplier and FSB with the motherboard to the jumper or set the soft overclocking in the BIOS, so as to achieve the overall performance of the computer part Ascension. So when the purchase should try to pay attention to the CPU FSB.

     

     

     

     

  • What is the CPU frequency? 2017 - 06 - 20

      CPU frequency, that is, the CPU clock frequency, simply said that the CPU operating frequency (1 second occurred in the number of synchronization pulses). The unit is Hz. It determines the speed of the computer, with the development of the computer, the frequency from the past MHZ development to the present GHZ (1G = 1024M). Generally speaking, in the same series of microprocessors, the higher the frequency on behalf of the computer faster, but with different types of processors, it can only be used as a parameter for reference.

    What is the CPU frequency?

       Another CPU computing speed depends on the CPU of the various aspects of the pipeline performance indicators. As the frequency is not directly on behalf of the speed of operation, so in certain circumstances, it is likely that there will be a higher frequency of the actual CPU operating speed is low. So the frequency is only one aspect of CPU performance, rather than the overall performance of the CPU.

      Speaking of processor frequency, it is necessary to mention closely related to the two concepts: frequency and FSB, FSB is the CPU reference frequency, the unit is MHz. FSB is the speed between the CPU and the motherboard running simultaneously, and the vast majority of the current computer system FSB is also the speed of synchronization between memory and motherboard, in this way, can be understood as the CPU FSB directly with Memory connected to achieve the synchronization between the two running state;

      Multiplier that is the frequency and FSB ratio of multiple. Frequency, frequency, frequency, the relationship: frequency = FSB frequency. Early CPU did not double the concept of frequency, then the frequency and system bus speed is the same. With the development of technology, CPU speed faster and faster, memory, hard drives and other accessories gradually can not keep up with the CPU speed, and the emergence of frequency to solve this problem, it can make memory and other components still work in a relatively low System bus frequency, while the CPU frequency can be multiplied by unlimited upgrade (theoretically). 

    What is the CPU frequency?

       People can be FSB as a machine within a production line, and frequency is the number of production lines, a machine production speed (frequency) is the speed of the production line (FSB) multiplied by the number of production lines (Multiplier). Now the manufacturers have basically have doubled the lock, to overclocking only from the FSB start, through the multiplier and FSB with the motherboard to the jumper or set the soft overclocking in the BIOS, so as to achieve the overall performance of the computer part Ascension. So when the purchase should try to pay attention to the CPU FSB.

       The actual operating frequency of the CPU is the product of the FSB and the multiplier. The FSB is like the width of the road, and the multiplier is the number of vehicles allowed per unit time on this road. At present the mainstream CPU FSB is usually 66,100 or 133, such as PentiumIII 667 is 133 FSB multiplied by 5 times the frequency. In general, FSB high CPU performance is better, which is why the use of 133 FSB PIII667 will be used with 100 FSB PIII700 comparable to the reasons. So in the choice of CPU time in addition to see the total frequency, but also pay attention to the composition of the frequency.

     

     

     

  • What are the CPU performance indicators? 2017 - 06 - 20

    CPU performance indicators are:

      1. Frequency, frequency is also called the clock frequency, the unit is MHz (or GHz), used to represent the CPU operation, the speed of processing data. CPU frequency = FSB × multiplier factor. Many people think that the frequency determines the CPU running speed, which is not only a one-sided, but also for the server is concerned, this understanding also appeared in the deviation. So far, there is no definite formula to achieve the frequency and the actual computing speed between the numerical relationship between the two, even the two processor manufacturers Intel Intel and AMD, at this point there is a lot of controversy, from Intel Of the product development trend, we can see that Intel is focused on strengthening their own frequency of development. Like other processor manufacturers, someone has ever taken a 1G Transmeta processor to do the comparison, the operating efficiency is equivalent to 2G Intel processor.

    What are the CPU performance indicators?

      Therefore, the CPU frequency and CPU actual computing power is not directly related to the frequency of digital pulse signal in the CPU signal speed. In Intel's processor products, you can also see examples:

      1GHzItanium chips can behave almost as fast as the 2.66GHz Xeon (Xeon) / Opteron, or 1.5GHzItanium2 is about as fast as the 4GHz Xeon / Opteron. CPU computing speed depends on the CPU line, bus and so on all aspects of performance indicators.

      Frequency and the actual operation speed is related, can only say that the frequency is only one aspect of CPU performance, rather than the overall performance of the CPU.

      2. FSB, FSB is the CPU reference frequency, the unit is MHz. CPU FSB determines the running speed of the whole board. In layman's terms, in the desktop, said overclocking, are super CPU FSB (of course, under normal circumstances, CPU multiplier are locked) believe that this is a good understanding. But for the server CPU is concerned, overclocking is absolutely not allowed. In front of the CPU that determines the speed of the motherboard, the two are running simultaneously, if the server CPU overclocked, and changed the FSB, will produce asynchronous run, (many motherboards support asynchronous operation) This will cause the entire server The system is unstable.