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Intel officials position the processor at the high end and think it's more focused on the gaming experience, so what exactly is its performance? today we're going to start with the theory.
First of all, the basic specifications to understand the i7-9700K. As can be seen from the above specification chart, i7-9700K is based on a mature 14-nm process with a base frequency of 3.6 GHz, a maximum of 4.9 GHz, 8 core threads, and a 12 MB three-level cache. It supports up to 40 PCIE channels, dual-channel DDR4-2666 memory and Intel Pride memory, with a TDP of 95W. The tail label of "K" indicates that the processor is an unlocked frequency processor, which can be overclocked. Compared with Intel's 9th generation Core Flagship Processor i9-9900K, other specifications i7-9700K and i9-9900K are very close except for the hyperthreading part.
Analysis of i7-9700K from Specification Parameters and Technology Application
As the processor with the closest specification parameter to i9 ≤ 9900K, is the performance of i7 ≤ 9700K similar to that of i9 ≤ 9900K? What is the specific performance? First of all, we analyze i7 ≤ 9700K from the point of view of specification parameters and technical application.
From the above and the nine generations of Core flagship i99900K very close to the specification parameters can actually be seen, we do not rush to draw a conclusion, and look at the specific analysis below.
OneIs the single core performance of i7 ≤ 9700K enough to meet the needs of 3A?
We know that the current market of large 3A games, mainly on the processor single-core processing performance requirements, there are few hyperthreading games. To support multithreading, games need to be specially optimized for multi-core multithreading, and most game manufacturers do not have this optimization, so the expressiveness of a processor's single-core performance becomes the key to measure its game performance.
From the specification chart, we can see that the basic frequency of i7-9700K is 3.6 GHz. Supported by Intel Rui-frequency acceleration technology 2.0, the frequency of single-core Rui-frequency can reach 4.9 GHz, while the basic frequency of i9-9900K, which is the flagship of nine generations of Core-Rui, is the same as 3.6 GHz, and the single-core Rui-frequency can reach 5.0 GHz. The maximum frequency of i7-9700K is only higher than that of the flagship's i9-9900K. With 0.1GHz missing, the single-core performance of i7-9700K is almost the same as that of the flagship processor, which also shows that the performance of i7-9700K in game is very close to that of the flagship processor i9-9900K.
(PassMark test data)
We got i7-9700K and i9-9900K single-core performance scores from PassMark. We can see that i7-9700K got 2819 points and i9-9900K got 2895 points. From PassMark's test results, it is concluded that i7-9700K has almost the same single-core performance as i9-9900K, which indicates that i7-9700K's single-core processing performance can meet the requirements of large 3A game masterpieces on the market.
TwoIn addition to the frequency, what about the IPC of i7 ≤ 9700K?
There are only two factors that really affect the performance of a processor. One is the frequency we talk about, the other is the IPC we're going to talk about today. The concept of IPC, which is short for instruction per clock, refers to the number of instructions executed by a processor in each clock cycle. The criterion for determining the performance of a processor is the frequency of IPC* which was first proposed by Intel, but it is also a widely accepted measure in the industry. A formula for processor performance.
Through the introduction of IPC above, we know that the higher the IPC of a processor is, the stronger its performance will be at the same frequency. IPC comes from the design architecture of a processor. Once the architecture is established, the IPC value will not change any more. Therefore, the IPC value plays a decisive role in the performance of the processor.
Through the specification table, we know that the basic frequencies of i7 ≤ 9700K and i9 ≤ 9900K are the same, while the difference of the highest frequency of single core is only 0.1GHz. It can be judged that the performance of the two is similar to that of the nine generations of Core Coffee Lake Refresh architecture, which is consistent with the test results of PassMark mentioned above. Compared with the previous generation i7 ≤ 8700K, the performance of i7 ≤ 9700K is improved by nearly 10%. However, the basic frequency of i7 ≤ 8700K is 3.7GHz, and the highest frequency is 4.7GHz. It can be seen that the IPC value of i7 ≤ 9700K is improved in the case of the same frequency.
In summary, the IPC value of i7-9700K makes it possible to execute more instructions in each clock cycle, i.e. more efficient, which will naturally lead to performance improvement. Then the large-scale game experience with higher single-core performance requirements will naturally bring users with it. To have a better experience.
How about the heat dissipation of i7-9700K? Is it enough to support long-term high-frequency operation?
On the ninth generation Cool i7 / 9700K, the long-anticipated brazing heat dissipation can be returned. In the aspect of heat dissipation efficiency, compared with the traditional silicon grease heat dissipation, the natural brazing heat dissipation effect is better, which can keep the processor at a higher working frequency for a long time.
Heat dissipation performance is also the key to measure the performance of a processor. Although there are air-cooled, water-cooled and other external heat dissipation facilities, brazing and silicone grease are the key factors determining the heat dissipation from the core to the shell of the processor. Only the faster the heat dissipation speed from the core to the shell, the higher the efficiency, can they cooperate with the external air-cooled or water-cooled heat dissipation devices. In order to make the whole processor cooling faster, and in this regard, it is true that i7-9700K brazing heat dissipation is more dominant.
The actual measurement of real knowledge i7 / 9700K game is carried out.
Above has analyzed a lot from the theoretical point of view. Next, we use i7-9700K to test the game to see if the performance of this processor in the actual experience is as good as the theoretical analysis. The test environment is as follows: the processor is i7-9700K, the running memory is 16G, and the hard disk is 512G.NV RTX 2080Ti with 1080P screen resolution is selected for the graphics card. Game selection is 3A game masterpiece Rainbow Six: Siege, Infinite Rule and Battlefield 5.
Rainbow 6: siege
Picture quality special effects set to "very high", 30 minutes of actual measurement game, frame rate maintained at more than 400, the picture is smooth and delicate.
"Infinite Principle" is a chicken-eating game produced by Tencent. The highest quality is "standard quality". We set the quality game for 30 minutes. The frame rate is about 110 frames, which is very stable, and the picture fineness and fluency are very high.
< field="" 5="" /> sets the highest picture quality, can be seen from the game screenshot, in the complex game picture environment, the frame rate is kept at more than 150 frames, the picture fluency is very good.
Through the theoretical analysis of the specification parameters and the measurement of the game, it can be seen that the performance of the ninth generation Core i79700K is very close to that of the Nine Generation Core flagship processor i99900K, and the loading speed, picture fluency and fine picture quality of the game are all the desired results. I7v9700K 8 core 8 threads can also meet the performance requirements, rendering and analysis of the professional software on the market at present. There is no problem with computing or batch file processing.
Throughout the whole nine-generation Core product line, i77000K can be said to be the most balanced processor in all aspects, and from the data given by PassMark, the performance-to-price ratio of i77700K is also good. Although the i9000K, which is the flagship processor of Nine Generation Core, has better performance, but the price is also higher and the fever level is located, as a mass player, positioning the high-end i77000K is a better choice. It is also more practical for mass players.