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Who Is Better to Install This Year? Six Mid and High-end CPU Scuffles: AMD's Omni-directional Suppre

2017 is the most interesting year in the CPU market in the past decade. In the past few years, we could only buy Intel's cost-effective products, such as Xeon e3-1200 series and i5-x500 series. Basically, there are only one or two choices for installing mainstream CPUs.

This year, due to the strong return of AMD, this situation has finally been overturned. Although E3 is lost, the introduction of ryzen series gives a lot of choices to the mainstream market of 1000 2500.

In fact, for everyone, each computer only needs one CPU, so who has the ability to become standard? Let's do a detailed comparison test today.

About the test of this article:

In this paper, the CPU test will be divided into four parts: CPU performance test, with unique use test, disk performance test and power consumption test, so as to help you understand the actual use performance of CPU from many aspects.

Since the comparison test will use the previous test data, in order to ensure the consistency of the comparison, I will still try to use the same version of test software, driver, BIOS, etc. used in the previous test.

At present, there are many updates related to ryzen, and there are different opinions on the extent of improvement. At present, there is no way to upgrade the test platform (mainly the graphics card. Due to boost, the test results of N card will differ every time, so only a card can be used). Therefore, it may have to wait until the AMD Vega graphics card is released before unified retesting.

CPU specifications and drawings

The main comparison object of this test is the CPU of 1000 2500 yuan.

Intel includes i7-7700k and i7-7500, two classic models (in terms of product positioning). Amd uses the full range of ryzen 5 products, and 1700 will be put in the overall comparison.

The picture appreciation part mainly appreciates the 1400, 1600 and 7500 which are not many pieces in the ordinary test. The appearance of CPU and package is basically the same as that of R7. The difference is that 7 on the package becomes 5.

The CPU is still in a standard plastic protective case with a small sticker.

There are obvious differences on the radiator. 1400 will be much smaller than 1600.

By comparing the base, we can know that the 1600 adopts the same radiator as the 1700, while the 1400 radiator is a lower level model without copper plug. This also shows that 1400 power consumption will be much lower.

The 7500 in this test is a loose piece, which should be the same as most choices, so there is no box to show.

Intel's original is like this. Compared with AMD's radiator, it is much thinner.

Product test platform: the following is the detailed configuration table of the test platform, mainly comparing the following 6 models.

The motherboard tested uses the mainstream B350. Because XFR is not supported, the test results will be slightly lower than those on x370, basically within 2%, depending on the improvement of XFR.

Intel's test motherboard uses z270 Phoenix gaming.

The memory is the DDR4 8g * 4 of the pirate ship. The actual operating frequency is 2133c15.

The graphics card adopts sapphire 480 8g ultra platinum.

SSD is three Intel, and the system disk uses the mainstream 535 to ensure that the test is closer to ordinary users. 240g is used as the system disk, and 480g * 2 is mainly used to play test games. There are more and more games, so we can only add SSD.

In order to test the PCI-E efficiency of the chipset later, 750 400g is also used here.

The radiator is owl u12s.

Who Is Better to Install This Year? Six Mid and High-end CPU Scuffles: AMD's Omni-directional Suppre 1

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Problems of Phased Array Ground Penetrating Radar Detection System
Although GPR has been widely used in hydrology, engineering, environment and other fields, many basic theoretical and technical problems have not been fundamentally solved, so the real advantages of GPR have not been brought into full play.The main problems existing in GPR technology include:1) The detection depth is shallow, and the contradiction between detection depth and resolution cannot be overcome. Increasing detection depth means sacrificing detection resolution;2) Multiple spread and other clutter jamming are serious, and there has been no good elimination method, which exists in radars at home and abroad;3) The influence of medium unevenness is great and can not be eliminated, resulting in difficulty in obtaining necessary velocity data;4) The data collection method of single sending and single receiving can provide limited information for post-processing and interpretation.The above problems are fatal defects for GPR. Although many geophysicists, electromagnetic experts and geophysical workers have done a lot of research and improvement on radar antenna design, signal processing and underground target imaging, these works are only partial modifications to the existing GPR system. In order to develop GPR technology, we must update our ideas and solve the problems from the fundamental principle.In view of this situation, experts proposed to develop a new GPR system - phased array GPR detection system in 1999.The basic research idea is to replace the current monopole radar antenna with the phased array radar antenna by using the relatively mature military phased array radar technology. Its purpose is to gather the electromagnetic wave into a narrow beam to transmit underground (or detection object) through the phased array technology, and receive the radar echo signal reflected by the target by using the multi-channel acquisition technology, The advanced data processing is carried out, and finally the three-dimensional image of the internal structure of the detection object is given.Development prospect of ground penetrating radar technologyIt is worth noting that at present, similar products have appeared in the market, such as RIS antenna array series of a company, but these products simply combine multiple monopole antennas into array antennas, which is essentially different from the idea of phased array ground penetrating radar.Because the phased array radar converges the electromagnetic wave into a narrow beam by controlling the phase delay of each channel, the energy is concentrated and the wave front diffusion is small. Therefore, the detection depth of the phased array radar is much larger under the condition of the same frequency and transmission power; On the contrary, under the same detection depth, phased array radar can improve the transmission power, so its resolution is much higher than the existing radar. In addition, since the spherical wave transmission is changed to beam transmission, the influence of medium heterogeneity is much smaller.Secondly, the phased array radar works in a continuous scanning mode and can scan in multiple directions. Therefore, the amount of information is much larger than that of the existing ground penetrating radar. For some special detection work, such as the quality detection of embankment cut-off wall, its role is unmatched by the existing ground penetrating radar (monopole antenna radar can not detect the joints, forks and other defects of embankment cut-off wall at all).Because phased array radar is a multi-channel received signal, multi-channel superposition can be carried out, just like the multiple coverage technology of reflection seismic exploration. Therefore, multiple interference can be greatly eliminated, which is difficult for existing radars. The antenna of high frequency (600mhz-1ghz) phased array ground penetrating radar can be made smaller, and its advantages are unmatched by the existing ground penetrating radar in shallow detection.At present, the system prototype has been completed. The carrier free pulse working system with center frequency of 900MHz is adopted, and the transmitting and receiving antennas are separated. 16 (4 × 4) Transmit channel forming, beam aggregation and scanning 16 (4) × 4) The channel receives the echo, and the optional scanning angles are - 36 °, - 24 °, - 12 °, 0 °, 12 °, 24 ° and 36 °.The software part of the system has rich data processing functions. The main conventional processing includes filtering, gain adjustment, static and dynamic correction, deconvolution, complex signal analysis, time-frequency analysis, etc., and multi-channel data processing, such as velocity analysis, superposition technology, coherence analysis technology, array signal processing, etc. And weak signal extraction, target automatic recognition and inversion interpretation under various clutter interference. A large number of field experiments on concrete detection in Yichang Three Gorges dam are carried out. The experimental results show that the spotlight scanning function of phased array radar has been realized, the penetration depth is greater than 1.5m and the resolution is higher than that of ordinary radar.Editing: hfy
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