Intel i9

In 2006, Intel officially released the Core architecture, which sounded the clarion call to completely suppress AMD, and has been firmly suppressing AMD for many years, especially in the six years from 2011 to 2017. After the iron triangle of i7/i5/i3 was established, the ancestral quad-core became the main theme of the mainstream platform.

However, after AMD released Ryzen CPU in 2017, the situation reversed obviously. Intel paid a considerable price for its laziness, and experienced the carelessness of the 7 th generation Core and the incomplete counterattack of the 8 th generation Core.

At last, Intel decided to maximize the Core architecture in its twilight years, and launched the ninth generation product, which is the first time that the 115X mainstream platform used the name i9.

Is the Core architecture that lasted for 12 years completely new this time? The detailed test report of i9-9900K will be brought today.

It is solemnly stated that in order to ensure the fairness of the test, the default state of both drivers of AI after installation shall prevail in the test, and any special optimization of CPU by AMD, including but not limited to AMD Gaming Mode, will not be started in the whole process. Because the default memory parameter of AMD chipset is higher than that of Intel, it is set to 2666C15 for Intel platform.

In order to avoid the test being affected by the strong performance of AMD original radiator, AMD and Intel platforms will use the same radiator. Please feel free to eat.

In order to keep the relative comparability between CPU tests as far as possible (there are too many variables in CPU performance "BIOS, system (function update), patch (quality update), driver") and avoid unknown bugs (there are many problems in 1803 and 1809), the system will still keep using 1709.

However, because the latest monthly cumulative patch has been installed, the system will normally resist MELTDOWN, SPECTRE and the newly discovered FORESHADOW vulnerabilities. I9-9900K Introduction: i9-9900K still uses 1151 pins, which is the fourth generation of 1151CPU products.

Because the CPU base is completely universal, there is no change in appearance compared with the i7-8700K. The capacitor LAYOUT on the back remains unchanged, indicating that the layout of the package has not changed.

Starting from the first generation of i7-6700K in 1151, Intel drastically reduced the thickness of PCB, but gradually changed it back. The PCB of i9-9900K can be seen to be slightly strengthened.

Compared with previous products, i9-9900K has two biggest changes. The first is to increase the number of cores to 8T16C, and the second is to further improve the frequency. The full-core turbo frequency has been increased from 4.3G in the previous generation to 4.7g..

Introduction of Z390 motherboard platform:

Although i9-9900K can be used on the existing 300 series motherboards in backwards compatibility (Z370/B360/H310, and theoretically it can also be cracked on the 100 and 200 series), Intel still provides the Z390 chipset as a standard platform.

As usual, this time, we will find a high-end motherboard with relatively complete specifications. The motherboard used this time is Z390 AORUS MASTER.

The familiar 1151 base, which has been used for four generations, has not changed, which is very un-Intel style.

The CPU power supply phase number of the motherboard is 12+2, which is still necessary for high-end motherboards.

The auxiliary power supply of CPU rarely uses 8+8PIN. It is a pity to tell you that this power supply interface is not decorative. According to the statistics of various brands, it is very common for Z390 to use 8+4. There is also a SYS FAN next to it.

There are four DDR4 memory slots on the motherboard, which is the standard of 115X and can be used for dual channels.

PCI-E slots of the motherboard are conventional configurations, which are X1/X16/X1/NA/X8/X1/X4 respectively, and can support dual-card SLI and cf. It is unnecessary to put X1 in the third position, because almost 100% of such motherboards need graphics cards, and the slots are useless.

The chipset of the motherboard is no different from other 300 series in appearance, and there is still no screen printing.

There is a row of internal sockets in the chassis along the board edge of the lower edge of the motherboard. Look at the half of the chipset first. From right, there are chassis control panel socket, SYS FAN*3, restart button, DEBUG indicator light and USB 2.0*2.

Near the audio block, from the right, there are TPM, RGB 4PIN light strip socket, VDG digital light strip socket, BIOS changeover switch, light display power supply socket and front audio socket.

There are three M.2 SSD sockets on the motherboard, all of which are covered with heat sinks. The length of PCI_6 is 2280, and the other two are 22110.

The motherboard is still only 6 SATA interfaces, with ancestral specifications.

The rear window interfaces of the motherboard are relatively rich, which are overclocking buttons, WIFI antenna sockets, USB 2.0*4, USB 3.0*2+HDMI, USB 3.1 A+C, USB 3.1*2+LAN, and 3.5 audio *5+ optical fiber audio from the left. There is not much innovation in the rear window interface. The biggest change is that Gigabyte has finally started to eliminate the PS2 interface.

The audio part of the motherboard adopts the combination of ALC1220+ESS DAC 9118, which is regarded as the flagship standard solution at present.

The network card is Intel’s I219. It seems that the killer network card has been busy for several years, and now it has been forgotten.

A large number of REDRIVER chips (P13EQX) can be seen behind USB 3.1. This is because the specification of USB 3.1 has great defects, and the signal of wire can only be maintained at one meter. Therefore, motherboard manufacturers have to add additional chips to gain USB 3.1 data signals. Behind the HDMI interface, you can see an ASM1442, which is the level conversion chip of HDMI.

The circuit behind USB 2.0 is for USB DAC interface, and the relative current of USB interface with independent power supply will be more stable.

The motherboard comes with a Wi-Fi module, the model is Intel 9560. This is a Wi-Fi module of CNVI. If it is replaced, you need to choose the model of CNVI.

Near the corner of the memory slot, you can see a row of voltage detection points. On the right are CPU FAN and SYS FAN, and on the left are RGB 4PIN light strip sockets and VDG digital light strip sockets.

There are some front sockets between the motherboard 24PIN and the chipset. From the left in the figure, there are USB 3.1 TYPE-C socket, USB 3.0 socket and SYS FAN in the upper left corner respectively. It can be seen that the circuit design of the front USB 3.0 is quite complicated, mainly to meet the needs of PD fast charging. The front USB 3.0 of this motherboard supports fast charging.

The design of USB 3.1 TYPE-C socket is still not reasonable enough, and it is easy to conflict with the memory card buckle.

There is a whole backboard on the back of the main board. In addition to strengthening the main board, there is also a thermal pad to help reduce the power supply temperature.

　

There are still many accessories for the whole motherboard, and now all kinds of armor are the most important parts for the motherboard.

The power supply of CPU is actually 12+2 phases.

The core part of CPU is 12 phases; The PWM control chip is IR 35201, which is an 8-phase chip that can be split into 6+2; On the motherboard, the CPU power supply is doubled by six IR 3599 DRIVER chips, so it is not a simple doubling but a real 12-phase array; The input capacitors are three nichicon solid-state capacitors with a capacity of 270 microfarads and a voltage of 16V；. MOS is one IR 3558 DrMOS per phase with rated current of 45A；; The inductance is a ferrite inductance with an inductance R30 per phase; The output capacitor is 10 nichicon solid-state capacitors with a capacity of 560 microfarads and a voltage of 6.3V.

The centralized display part of CPU is 2 phases; The PWM control chip shares IR 35201；; The input capacitors share three nichicon solid-state capacitors; MOS is one for each phase, the upper bridge is 4C10N of Anson and the lower bridge is 4C06N； of Anson; The inductance is a ferrite inductance with an inductance R30 per phase; The output capacitors are three nichicon solid-state capacitors with a capacity of 560 microfarads and a voltage of 6.3V. The power supply part of the whole CPU is relatively neat except that the input capacitance is less, and the scheme is enough to meet the power consumption demand of 9900K K.

The VCC power supply of CPU is strengthened quite a lot, and two phases of complete power supply are made separately. Mainly to improve the overclocking ability of CPU bus and memory control.

The design of CPU-powered heat dissipation of the motherboard is quite complicated. Gigabyte has welded additional aluminum fins on the traditional extruded aluminum heat sink. The base adopts the design of heat pipe+heat pipe direct contact.

There is an IDT 6V41630 chip on the motherboard, which is mainly used to improve the overclocking range and step of CPU external frequency and strengthen the overclocking ability of CPU.

The power supply of the memory is one phase, the MOS is one up and two down, the upper and lower bridges are all Anson 4C06N, and the input and output capacitors are two nichicon solid-state capacitors, 560 microfarads/6.3V..

The chipset is also designed with independent power supply.

The main monitoring chip of the motherboard is 8688E of ITE.

There is an ITE8795E in the position of PCI_6, which is the RGB control chip of the motherboard.

Six PCI-E switching chips can be seen between PCI-E X16 and X18. The four chips together are aimed at the switching of graphics card slots, and one X16 is split into X8+X8. The other two are switching for M.2 SSD slots. It should be noted that although Intel has been boasting that 9900K has 40 PCI-E channels. Only 16 of them are directly connected to CPU, and the others are provided by Z390 chipset.

However, the so-called 24 in Z390 are actually universal IO channels, and USB 3.1, USB 3.0, SATA 3.0 and Gigabit network cards all occupy IO. For a Z390, there are actually 13~19 PCI-E channels (SATA*4~6, USB 3.0/3.1*0~4, LAN*1) that can be called.