9 Best Motherboards for i9 9900k in 2021

9 Best Motherboards for i9 9900k in 2021

Enthusiasts are constantly looking for a processor that gives them the edge they need to stay one step ahead of the crowd. With the growing interest in gaming, computers have become faster and smarter. , AMD and Intel. Intel led the game with its Intel i9 9900k processor well ahead of AMD. It’s designed for enthusiasts with unmatched single and multi-core performance. The “k” in your code represents your ability to exceed the base frequency and reach new heights in processing speed. To run such a powerful technology, you need other components to support your skills. First and foremost, you need the best motherboard for i9 9900k. The motherboard is the foundation for all of your hardware components. Without a solid foundation, you will not achieve adequate performance and bottlenecks can occur.

Best Motherboards for i9 9900k

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ASRock has released another high-performance budget motherboard, but what makes it different from all the other myriad budget options? They managed to create a beautiful-looking motherboard that still has a punch while being extremely affordable.

With the Intel B365 chipset, this motherboard is not as powerful as the Z390, it lacks overclocking functions and USB 3. But it is a huge improvement over its predecessor, the B360, with more PCIE lanes. The power system is neat; Its 8-phase VRM can easily power any CPU.

This is a cheap motherboard, but you couldn’t tell by its rear I / O. It has eight USB ports, four of which are USB 3. There is also a single Type-C connector that is rare on budget motherboards. There are also two USB 2.0 ports that are useful for peripherals that do not benefit from fast transfer speeds.

We’re getting used to RGB on high-end motherboards, but it’s rare to see it on entry-level motherboards, so it’s a welcome addition. It is fully customizable with the Polychrome SYNC app. Another feature we didn’t expect is the Pole LEDs, which you can use to quickly fix any issues that are preventing your PC from posting. It was also good for them to incorporate a surround sound capable audio chipset with digital output.


  • Cheap
  • Gorgeous
  • Type-C port


  • B365 chipset

ASRock Z390 Taichi

ASRock Z390 Taichi

ASRock is widely known for its range of midrange motherboards, but their quality Taichi motherboards have always managed to find their place in many high-end versions, and for good reason: the ASRock Z390 Taichi is the perfect choice for this it offers many features. and high performance at a reasonable price.

Its 12-phase power supply is one of the best on the market and will power pretty much any CPU, and with many power phases and 60-amp output, this motherboard has high overclocking potential that will help you get the most out of your processor. It has an additional external clock generator that allows you to get higher frequencies and better stability when overclocking.

This motherboard has a WLAN module that is ideal for users who prefer to go to wirelessly. It also has Bluetooth. You can connect the external antennas to improve the range and transmission speeds. There are two connections on the back of E / S Duallan is a pleasant feature, but we were surprised that you use an outdated Gigabit controller that may not be enough for some energy users.

The expandability of this motherboard is exceptional. There are eight SATA3 ports and two Ultra M.2 slots. Three PCIE-3 expansion slots run at full speed; Thanks to the ASMedia ASM1061 SATA controller, they do not share any bandwidth with the M.2 slots.


  • Gorgeous design
  • 60 amp 12-phase power delivery
  • Great for overclocking


  • Outdated Ethernet controller

ASUS ROG Maximus XI Hero

ASUS ROG Maximus XI Hero

Another excellent high-selection for today is the Asus Rog Maximus Xi Hero part of its orientation of cogode products that offer high quality and great aesthetics trying to attract players, though the design of this motherboard is undoubtedly everything.

VRM is good, its 10 phase power supply will power any processor with ease and has good overclocking capabilities. Most users like the idea of overclocking, but the reality is that achieving stable overclocking is not an easy task. You can get great overclocking results with just a few clicks. It’s an AI-assisted bot that does all the work for you.

You won’t get very far with overclocking if your thermals are problematic, and ASUS has another simple solution to this tricky problem. With the Fan Xpert 4 you have maximum control over your fan speeds and temperatures; It keeps your system comfortably cool without thermal throttling, even when overclocking RAM can be overclocked with Optimum II.

Back I / O has everything you can think of. There are eight USB ports, two of which are USB 2.0; It is mainly used for peripheral devices. Three ports are USB 3.1 Gen2, two are 3.1 Gen1 and a Type-C port is included. The BIOS Flashback button helps you update your BIOS to the latest version even before you install the CPU; You only need a power adapter and USB to transfer the firmware. The Clear CMOS button is another welcome addition; It will save you if you play too much in the BIOS.


  • Beautiful design
  • 10-phase power delivery


  • Huge price



The GIGABYTE Z390 AORUS Xtreme WATERFORCE offers everything from a unique design, high-quality thermal performance, brilliant aesthetics, fast network connectivity to first-class audio quality. Not many manufacturers have stepped out of their comfort zone to come up with a design like this motherboard. All you need is a pump and radiator to get started with your high-end gear. It is the best budget motherboard for i9 9900K with powerful specs with the latest Intel CNVi Wave 2 WiFi technology, which offers better latency and lower delays when streaming or playing games. Best-in-class for 4k streaming or online gaming.

We can talk a lot about this i9 9900k motherboard. The entire chipset, VRM, and CPU cooling are kept under control with a leakage circuit that ensures shutdown if a leak is detected. The BIOS is easy to use and aesthetically well-managed for new users. The circuit board leak detection system is unique to everyone and users have difficulty performing it. A minor leak can cause the leakage system to shut down the entire facility. At such a high price point, users want a 5100MHz memory to overclock, which is not included. on this motherboard.

We believe it has the best HiFi audio system. The audio jacks are all gold-plated and an anti-pop circuit reduces crackling noises when headphones or speakers are connected. Automatically adapts the amplitude to the impedance of the connected audio device. 127dBa sound can make any audio device vibrate. The dual 8-pin connector for CPU power is a solid pin design that ensures a better power supply. The PCIe slots and memory slots are reinforced with steel for excellent durability.


  • Durable PCIe Armor
  • Watercooled CPU


  • No overlocking knobs



MSI Meg Godlike are flagship motherboards and they could be the most prominent in this entire list and that’s why I picked this gaming beast gives an excellent performance. You can install memory up to 128 GB and overclock up to 4400 MHz. At first glance, most of the motherboard’s surface is covered by heat sinks and has a black circuit board with a touch of gray. The MSI MEG GODLIKE Z390 has six SATA6 slots and three M.2 slots for storage and WLAN modules.

It has a USB 3.1 Gen2 Type-C port, three USB 3.1 Gen2 Type-A ports, one USB 3.1 Gen1 Type-A port and some USB 2 ports.0 on the rear I / O bar. This motherboard uses some of MSI’s most expensive network and audio drivers and has built-in WiFi and RGB lights. There are four PCIe x16 slots and you can install various AMD and Nvidia graphics cards on this motherboard. That’s all about the spec of this motherboard and now it’s heading towards the downsides that we found with it.

The motherboard has an obvious feature set, but this one is still expensive for any Intel Coffee Lake processor. The motherboard can be a lot better, but I’m not sure most of you will notice. For a similar price, motherboards with a 10GBPS ethernet port are also available, but that one is missing and that’s it. This is an EATX motherboard that you need a complete tower box for; Otherwise, compatibility problems may arise. This is the best motherboard for the i9 9900k, but only if you can afford it; otherwise we have some inexpensive options with the same functionality.


  • 18 face VRM
  • Aesthetic look


  • Lacks 10GBPS Ethernet port.

Gigabyte Z390 Aorus Xtreme

Gigabyte Z390 Aorus Xtreme

Auros Xtreme is Gigabyte’s flagship motherboard series, and there is no doubt that these motherboards provide the best power supply for the components attached to them. This motherboard is still expensive, but a lot cheaper than the above. It has a 16-phase power design VRM. which is better for Intel i9 9900k, and you can overclock any mainstream Intel processor with this motherboard, for memory it has four RAM DIMMs and supports a maximum of 128GB of memory at an overclocked clock of 4400MHz.

Gigabyte Z390 Aorus Xtreme has three PCIe x16 with PCI Steel Armor and three PCIe x1 slots and supports various AMD and Nvidia graphics cards. This motherboard has one USB 3.1 Gen2 Type-C port, four USB 3.1 Gen2 Type-A ports, and four USB 3.1 Gen1 ports on the rear I / O panel. There are six SATA6 ports and three M.2 NVMe SSD slots with heat sinks on them. It has high-quality audio capacitors and a 10GBPS ethernet port that was lacking on the motherboard mentioned above. We are done with the specs for this motherboard and now let’s jump at not having it.

The motherboard collides with some HyperX memory modules and can overclock them at high frequencies. This motherboard is still expensive for its features, but the price doesn’t seem like much for the Intel i9 9900K. We have listed two or more. Aorus motherboards in this list, so you can see them at the bottom of this list too. This is also an EATX motherboard, and you need a full tower case for it. For its price, performance, and value, this motherboard is made for Intel i9 9900k, but there are other budget options on this list with the same feature set and line too, so check it out.


  • I/O cover
  • Mobo is good


  • HyperX modules

ASRock Phantom Gaming 9

ASRock Phantom Gaming 9

If you’re not looking for something super expensive, ASRock Phantom Gaming 9-line motherboards are the best for you because of their features and price. If you are looking for something premium with high quality build this motherboard is the best for you. VRM phase power design is pretty good for the processor we have. It has four RAM DIMMs for memory and supports a maximum memory of up to 64 GB at a clock rate of 4266 MHz Ethernet version.

This motherboard comes with extensive storage and connectivity options including eight SATA6 slots and three M.2 slots with a second M.2 heat sink. This motherboard has three PCIe x16 slots with PCI Steel Armor and supports Quad AMD – and Nvidia graphics cards. It has USB 3.2 Gen2 TypeC ports, three USB 3, Gen2 ports, and four USB 3.1 Gen1 ports for connectivity. There is a 10GBPS Ethernet version of this motherboard, but this one comes with 1.73Gb / s WiFi which is relatively cheaper than the other model.

There are some terrible things about this motherboard, and I recommend checking them out before considering this for your build. First of all, this motherboard is a little expensive because of its features and build quality. be much better, but that’s not a problem with Intel i9 9900k. This motherboard is higher in price so you can only enjoy it if you can afford its premium price. The only advantage over others is the high build quality, but you can refer to ASUS and Gigabyte motherboards which are much cheaper than that.


  • 1.73Gb/s Wi-Fi
  • 12 Phase
  • High OC RAMs supported


  • Low-Quality cooling system

ASUS ROG Strix Z390-I Gaming

ASUS ROG Strix Z390-I Gaming

The ASUS ROG Strix Z390I Gaming is a beautiful looking miniITX motherboard that outperforms all of its competitors in size. It is designed for your battle station design. We think it’s the best mITX motherboard for i9 9900K. The cooling of the VRM and M.2 units. It’s secured by a U-shaped heat sink design, and the built-in I / O cover ensures that all of your connections are solid and remain intact during installation. Contains two Intel Optane-ready M.2 slots for high-speed data transfer.

As the best motherboard for i9 9900k, it has a high-end audio chipset that works with SonicStudio to improve the overall user experience. However, we see some disadvantages of the motherboard: there are two M.2 slots, but an M.2 slot on the back does not have a heat sink, which leads to thermal acceleration. Uses older WiFi technology; The new WiFi6 has better range and transmission speeds. There is no sound filter for the audio connection on the back. There is also no clear CMOS button or Flash BIOS option on the back, which is a must for modern gaming PCs.

As the name suggests, this motherboard is geared towards gamers, offering sophisticated gaming options like high memory overclocking and powerful CPU overclocking capabilities with 8 + 2 Power Phase VRMs. It comes with PCIe slots. x16 hardened for high-end GPUs that are heavy and can cause the PCIe slot to crack from creeping over time. The AURA sync function is supported by many brands and users have reported stable performance.


  • 5-way optimization
  • Double-decker m2


  • No popping sound

ASUS ROG Maximus XI Gene Z390

ASUS ROG Maximus XI Gene Z390

Breaking records isn’t easy, but if you’re interested in having the best motherboard for the i99900k, it broke the record for the fastest RAM clock speeds of 5566 MHz and 7.61 GHz liquid nitrogen on all cores. . It does this with an ASUS ROG Maximus XI Gene Z390 mATX motherboard ASUS has done its best to innovate this motherboard. It can support four M.2 drives with limitless performance with high-performance heat sinks.

We have searched a lot trying to find the best product for our readers and we took the time to look for this best mATX motherboard for i9 9900K. Although it offers enthusiast-level functions, it lacks support for older SATA M.2. There are only four SATA ports. for connection and when you enable CPU memory, the PCIe x16 slot changes to x8 mode. The integrated graphics chipset will only have a 30 Hz output despite this performance.

Achieving high-performance settings is impossible without the right hardware. This motherboard has an automatic DRAM training switch and 4 LEDs to indicate the current boot status, a jumper to activate options and unique features for liquid nitrogen overclocking (LN2), and also a pause switch has a slow mode switch, a reset button, a safe start button and the option of checking the voltage using integrated measuring points. All of this is known as an overclocker toolkit. Without them, it’s not that easy to break records.


  • Overclockers toolkit
  • Water cooling zones


  • No dual LAN

Buying Guide

Expansion Slots

Expansion slots can be used to accommodate various PC components, so their number is also important. Most standard motherboards have enough slots for a graphics card, a sound card, and some M.2 drives. If you intend to run additional components like another graphics card or video capture card, you need to check that you have the available slots.

Another thing to consider is how many high-speed I / O lanes your motherboard can support. disables some connections to support multiple components. For example, the SATA ports can be disabled when something is plugged into the M.2 slot, which can lead to all sorts of confusion if something goes wrong.


When comparing motherboards, you should also look at the number of ports available and where they are located. These are required to connect devices such as a mouse and keyboard, but also headphones and USB devices. A number of ports so you don’t get stuck anywhere connecting your devices.


Another important aspect is the motherboard’s chipset. A motherboard’s chipset determines a few things, including the number of available PCIe lanes, SATA ports, and the overclocking capabilities of your system. , the Z390 chipset is recommended for i9 9900k, which we will cover in this article.


The type of socket that your motherboard has is also another important factor to take into account. A pedestal is the part of the motherboard that maintains its processor, so it is important that it adapts to the CpusFrerenten, which have different zoal needs. For example, one of the newest generation. The processors require an LGA 1200 socket. However, if you use an Intel Core i99900K, you need a motherboard with an LGA 1151 socket. If not, it is simply not set and just remains not set and remains with a freight motherboard. And the CPU and you must decide which will send.


We have presented a motherboard with up to five unity slot machines and a Grange motherboard with comprehensive connectivity options. The aim was to meet our readers and owners of the I9 9900K products to meet their CPU needs. This processor is intended for enthusiasts players so we involve some high-quality base plates that can press the boundaries of the CPU to new heights.

Frequently Asked Questions

Is i9 9900K good for RTX 3090?

Sure, Intel Core i99900K will make the RTX 3090 the bottleneck. It’s the fastest processor in the world that uses all the cores to generate a boost clock of 5.00GHz. Overclocking potential is admirable and perfect for this graphic card.

Will an i9 9900K bottleneck RTX 3090?

Yes, a low-frequency CPU creates a bottleneck in your GPU BUT the biggest problematic bottleneck is when you don’t have enough cores to process the frames the GPU is drawing then it reaches 100% CPU usage stuttering.

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Chris Stobing
By Chris Stobing

Chris Stobing is a hardware analyst at PhenomBuilts. He is a graduate of New York University. Chris brings his experience benchmarking and reviewing gadgets and PC hardware such as graphics cards, monitors, storage, and networking equipment.

Phenom Builts is reader-supported. When you buy through links on our site, we may earn an affiliate commission.

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