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Calculation force of CPU

Publish: 2021-04-25 22:52:20
1. 1. The meaning of CPU calculation once is that CPU performs "bit calculation" once, for example, 2 + 3 = 5, and binary is 0010 + 0011 = 0101. If there are three bits in total, the computer will calculate three times. 2. As for what this number is related to, that is, the higher the CPU frequency, the more the number of operations per unit time
2. The computing power of CPU is related to the number of CPU cores, the frequency of core and the ability of single clock cycle of core
the ability of double precision floating-point computing is commonly used to measure the scientific computing ability of CPU, that is, the ability to process 64 bit floating-point data

the processor supporting avx2 can perform 16 floating-point operations in one core and one clock cycle, Also known as 16flops
CPU power = number of cores x frequency of cores x 16flops
processors supporting avx512 can perform 32 floating-point operations in one core and one clock cycle, also known as 32flops
CPU power = number of cores x frequency of cores x 32flops
3. The main frequency of CPU determines its maximum computing power per second, that is, its computing speed
some CPUs have two levels of flash memory. The speed of data exchange between flash memory and CPU is very close to that of CPU itself
in general, the data exchange between memory and CPU is one or two orders of magnitude lower than the computing speed of CPU itself (depending on which bus the computer uses), which is the biggest bottleneck affecting the overall computing speed of a computer
so your question is not completely correct. The relationship between the overall computing power and memory size of the computer and the relationship between the overall computing power of the computer and the data exchange speed of the bus are secondary
only when the bus speed is constant and the size of memory is not less than the maximum number of bytes that can be exchanged by the bus per second, can the memory not become a factor to rece the overall computing speed of the computer
I don't know if you are satisfied with this answer.
4. I54590 is a four core, four thread, three-level cache is 6MB. The i7 4790 is a 4-core 8-thread, 3-level cache of 8MB. CPU is not only determined by the dominant frequency.
5. CPU frequency is actually a camouflage data, the previous Pentium 4 is an example, single core high frequency, energy consumption Tiankeng! Multi core processing is now the king, multi task processing capacity, with graphics card GPU auxiliary, 22nm, 32nm, 45nm process, represents the potential of energy saving and performance. CPU's two-level cache and three-level cache represent the opening ability of high-speed channels. In the case of high computing power and low channel, what level can't be reached? Lga1355 and other architectures represent the foresight of the whole CPU, and the computing power is not frequency visible.... High frequency, can only say that the front-end appearance is good, depends on the number of cores, technology level and two or three level cache to see if it is enough, you did not say a few cores, let alone what model, this is not the standard! There is no answer to this question!
6. No, if multiple programs are running at the same time, the al core 2.2g is better than the single core 4.4g. If it is a single task, the 4.4g single core is certainly better. Now u is developing towards multi task operation. For example, if you watch a movie with 4.4g, it's no problem. If you open a few web pages or games at the same time, the cup will happen, but the al core 2.2g is different.
7. E-cash can only be consumed by flash payment, so you can ask the local ICBC where there is a POS machine supporting flash payment, go to some cooperative merchants of ICBC, and support chip card consumption. We can do things like noodle king and Baiguoyuan. I don't know if you can do it. If you don't have it, you can only cancel the card. You need to withdraw the money from it
8.

the daily cash withdrawal limit of ATM is 20000
different ATM settings are different, some are single transaction 2000, some are 2500, 3000, at most 5000 per transaction; At the time of withdrawal, ATM will prompt the maximum amount of each withdrawal

automatic teller machine, also known as ATM, is the abbreviation of automatic teller machine, which means automatic teller machine. Because most of it is used for withdrawal, it is also known as ATM. It is a highly precise mechatronics device, using magnetic code card or smart card to achieve self-service of financial transactions, instead of the work of bank counter staff. It can withdraw cash, inquire deposit balance, transfer funds between accounts, inquire balance, etc; It can also carry out cash deposit (real-time entry), check deposit (none in China), passbook re registration, intermediate business, etc. Cardholders can use a credit card or savings card to make automatic withdrawal, balance inquiry, transfer, cash deposit, passbook re registration, purchase funds, change passwords, and pay mobile phone bills according to their passwords

9. Only Intel and AMD, NVIDIA IBM, Intel AMD and many other servers, the best IBM, Intel
for home use, Intel and AMD, CPU computing power, how many calculations per second
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