In addition to the frequency and core entry-level CPU exactly where?

Are processors, why Pentium, i3 spicy cheap, i5, i7 spicy expensive? Ryzen 5, 7 is also a four-digit price, where is the difference between high-end processors and entry-level processors? I believe some small partners are still not very clear about the differences among them. Xiao Bian said today.

First, the number and frequency of cores are indeed one aspect that directly affects performance. Take the recent price reduction of the i3 7350K. The single-core performance is very powerful. The most important factor is the extremely high frequency, which reaches 4.2 GHz, which is equal to the i7 7700K standard frequency of 4.2 GHz (4.5 GHz after acceleration). ). The other is the number of cores. The more cores there are, the more complex calculations can be performed, and the performance will naturally be better. However, in addition to the two most directly affecting performance, there are several other things that are a direct indication of processor performance differences.

Hyper-threading

The number of threads can affect performance to a certain extent. For example, dual-core dual-threading is a common configuration of current entry-level processors, that is, two physical cores, one for each thread used to calculate instructions. The latest Fire Pentium G4560 is the first entry-level processor to support dual-core four-threaded products, put it plainly that a physical core is virtualized into two processors, parallel processing, the efficiency is greatly increased.

Turbo frequency / dynamic acceleration frequency

No matter what the name is, it is particularly easy to understand. Within the allowable range of the processor's preset, automatic overclocking with a small amount, and using the method of raising the frequency to further enhance the computing power, is like the final sprint of the game. The frequency of this increase in frequency will certainly not be persistent, after all, should consider whether the processor's own physique can withstand.

Caching

The size of the cache also affects performance significantly. Although entry-level processors have increased their frequency, they are significantly worse in other areas. Caching is a particularly noticeable example. G4560 frequency reached 3.5GHz, but the three-level cache only poor 3MB; look at i7 7700K, three-level cache up to 8MB, do not underestimate the difference between this three-level cache a few MB, high-speed cache more than tens of KB can React directly to the final performance.

Nuclear display

The core graphics card is also a manifestation of the difference in processor performance. Of course, this part is relatively weakened. Intel’s core graphics are now divided into three levels: HD Graphics, Iris, and Iris Pro. The lowest is HD Graphics, and the highest is Iris Pro. However, Xiao Bian did hold some views on this part. The more entry-level processors, why can't we have a high-level nuclear display? This may allow people to completely give up entry-level models to buy an entry-level discrete graphics thinking, most people choose to use high-end processors with a high-end graphics card, do not know if we have this idea?

Functionality (flash, virtualization, etc.)

The deepest hidden is the functional differences of the processor. For example, the entry-level 7-generation Pentium will not support Intel's own black technology flash, earlier entry-level processors do not even support virtualization technology - their own machines can not be installed a virtual machine, after all, performance support is not up. These technologies are Intel's efforts. On the one hand, differentiation can reflect the difference in value. On the other hand, the performance of entry-level processors is insufficient to support these functions. Of course, with the passage of time, the performance of today's entry-level processors has also been greatly improved, and some of the original hardware technologies that have not been decentralized have also started to be ported to entry-level products. This is good news.

Summarizing briefly, in fact, a sentence can be summarized as: "The more complex the demand, the more the CPU can see the gap; the longer the time, the more the CPU can see the difference." The threshold for entry-level processor purchase is low and easy to bear. The performance and features of advanced processors are all perfect, but the purchase threshold is high. However, no matter what time, entry-level processors no matter how value, do not imagine it can bring you enough performance, value is for their own original price, must use it comparable to high-end products, obviously Unrealistic.