Universal Computer CPU Knowledge Encyclopedia

Classification of ①CPU

CPU brands have two camps, respectively, Intel (Intel) and AMD, the two industry bosses almost monopolize the CPU market, we take apart the computer to see, but also Intel and AMD brand (of course, not excluding the extremely small cottage of the CPU). Intel's CPUs are divided into Pentium (Pentium), Celeron (Celeron) and core (core™). Its performance from high to Low is also core>pentium>celeron. AMD's CPU is divided into Semporn (Flash Dragon) and Athlon (Fast Dragon), the performance of course is Athlon better than Semporn.

The frequency of ②CPU

The CPU, often hear 2.4GHZ, 3.0GHZ, such as CPU, what does this represent? These things are similar to 2.4GHZ of the CPU is the main frequency, that is, the primary clock frequency, the unit is MHz. One of the key metrics used to measure a CPU's performance. There is also a formula for the frequency calculation. The clock frequency = FSB x frequency multiplier coefficient.

Click "My Computer" → "properties" to see the CPU type and frequency size as shown below:

What's the FSB that ③cpu mentioned?

FSB is the front-end bus, in simple terms, this thing is the CPU and the external exchange of data, the most important channel. The speed of the FSB processing also affects the performance of the CPU. What is the cache mentioned in 4.CPU? Caching refers to a memory built into the CPU for high-speed data exchange. Split-level caching (L1cache), Level two cache (L2cache), and level three caching (L3cache).

Generally, the cache size is: Level Three cache > Level two cache > level cache. Cache size is also an important metric for measuring CPU performance.

What is the CPU of the 45nm specification that ④ often mentions

Similar to 45nm these appear in the CPU of the word is actually the CPU manufacturing process, its unit is micron, for the secret system is smaller, the manufacturing process of course the more advanced, the higher the frequency, the more integrated the transistor! Now the CPU manufacturing process from micron to Nano, From 90 nm---65 nm---45 nm---to the present 32 nm---the future of the 28 nm, and then to the future of the lower, the smaller the process, the product to do the more refined, low power consumption, the smaller the volume.

What effect does the ⑤CPU core voltage have on the CPU?

Bottom line: Lower core voltages, less power consumption and fever.

The use of Cpu-z software can be detailed view of the CPU parameters of the information (pictured below, Classic machine configuration):