Top 5 Best Motherboards for I9 9900k in 2020

What are the best motherboards for an Intel Core i9-9900K?

The Intel Core i9-9900K may have been released in 2018, but it’s still one of the fastest CPUs on the market. At around $380, the i9-9900K is a great selection if you’re trying to build a gaming PC on a budget. If you happen to already own an i9-9900K and need to replace the motherboard, then you may be wondering which one you should choose.

We gathered the top 5 compatible motherboards for the i9-9900K that support the chip and have all the features you need. The motherboards that work with an i9-9900K are called Z390 and many well-known manufacturers like Gigabyte, ASUS or MSI have great ATX boards.

We’ve added five different boards that cater to all types of users – the best high-end board, the best mid-range board, the best budget-friendly board, the best mini-board, and the best overall board. Let’s have a look.

5. Gigabyte Z390 AORUS PRO

The best budget-friendly ATX motherboard for I9 9900k

The ATX motherboard from Gigabyte is a great choice for gamers since it comes with plenty of space for all the components. This also means the case needs to be bigger, but it also means your system will have great cooling.

Gigabyte Z390 AORUS PRO – Specs

  • Chipset: Intel Z390
  • Memory: 4 × DDR4 DIMM, max. 128 GB
  • Storage: 2 × M.2, 6 × SATA
  • Multi GPU Support: Nvdia SLI, AMD CrossFireX
  • Expansion Slots: 3 × PCIe x16, 3 × PCIe x1
  • Back Panel Ports: 1 × HDMI, 1 × USB 3.1 Gen 2 Type-C, 2 × USB 3.1 Gen 2 Type-A, 3 × USB 3.1 Gen 1, 4 × USB 2.0/1.1, 1 × LAN, 1 × optical S/PDIF Out, 5 × audio jacks

Why invest a lot in a motherboard when you can get performance for a great price? At under $200, the Gigabyte Z390 AORUS PRO is good enough for gaming on a budget.

This motherboard also supports overclocking and can run your i9-9900K at a full 5GHz and eat only 3.33 volts of power.

4. ASRock Z390 Taichi Ultimate

The best mid-range ATX motherboard for I9 9900k

Paying a bit more for this mid-range board, you will be able to use the Z390 Taichi Ultimate for online gaming since it also supports 10Gb Ethernet.

ASRock Z390 Taichi Ultimate – Specs

  • Chipset: Intel Z390
  • Memory: 4 × DDR4 DIMM, max. 128 GB
  • Storage: 3 × M.2, 8 × SATA
  • Multi GPU Support: Nvdia SLI, AMD CrossFireX
  • Expansion Slots: 3 × PCIe x16, 2 × PCIe x1
  • Back Panel Ports: 2 × Antenna Ports, 1 × PS/2, 1 × DisplayPort 1.2, 1 x HDMI, 1 × USB 3.1 Gen2 Type-C, 3 × USB 3.1 Gen2 Type-A, 4 × USB 3.1 Gen1, 3 × LAN, 1 × Optical S/PDIF Out, 1 × Clear CMOS Button, HD Audio Jacks
  • Wi-Fi

This motherboard is an upgrade from the budget motherboard we mentioned earlier, and also comes with 1.73Gbps Wi-Fi. At around $270, the ASRock Z390 Taichi Ultimate competes with the Z390 Aorus Master, the latter being twice as expensive as this motherboard. If you’re not looking for a flashy motherboard or to do much overclocking with your i9-9900K processor, the Z390 Taichi Ultimate is a good choice.

3. Gigabyte Z390 Aorus Xtreme

The best high-end ATX motherboard for I9 9900k

One of the best motherboards you could ever choose is the Gigabyte Z390 Aorus Xtreme, which can support up to 128GB of RAM! There’s also RGB lighting across the board if you want to put your epic gaming system on display.

Gigabyte Z390 Aorus Xtreme – Specs

  • Chipset: Intel Z390
  • Memory: 4 × DDR4 DIMM, max. 128 GB
  • Storage: 3 × M.2, 6 × SATA
  • Multi GPU Support: Nvdia SLI, AMD CrossFireX
  • Expansion Slots: 3 × PCIe x16, 2 × PCIe x1
  • Back Panel Ports: 2 × SMA antenna connectors, 1 × HDMI, 2 × USB 3.1 Gen 2 Type-C, 4 × USB 3.1 Gen 2 Type-A, 2 × USB 3.1 Gen 1, 2 × USB 2.0/1.1, 2 × LAN, 1 × optical S/PDIF Out, 5 × audio jacks
  • Wi-Fi

The Gigabyte Z390 Aorus Xtreme beats other motherboards in benchmarks, runs cooler than most of the other boards out there and it’s capable of anything! And, it should do that considering it starts at around $1400.

2. Asus ROG Maximus XI Gene Z390

The best micro ATX motherboard for I9 9900k

This may not exactly be what you want for gaming, but here’s why the Asus ROG Maximus XI Gene Z390 is a great choice. It has enough room for dual-slot GPU, and it offers great performance. This premium mobo comes with good VRM-cooling and it has good OC-capabilities.

Asus ROG Maximus XI Gene Z390 – Specs

  • Chipset: Intel Z390
  • Memory: 2 × DDR4 DIMM, max. 64 GB
  • Storage: 2 × M.2, 2 × ROG DIMM.2, 4 × SATA
  • Multi GPU Support: None
  • Expansion Slots: 1 × PCIe x16, 1 × PCIe x4
  • Back Panel Ports: 1 × Wi-Fi antenna, 1 × PS/2, 1 × HDMI, 3 × USB 3.1 Gen 2 Type-A, 1 × USB 3.1 Gen 2 Type-C, 6 × USB 3.1 Gen 1, 2 × USB 2.0, 1 × LAN, 1 × Clear CMOS
  • Wi-Fi

You may not get too many slots with this smaller motherboard, but aside from the inability to add a sound card, you’ll be getting all you need from the Asus ROG Maximus XI Gene Z390. It supports up to 64 GB, coming with two memory slots, and lets you connect two SSDs to the CPU aside from the three Z390 paths. At around $900, this mobo is a tiny beast.

1. ASUS ROG Maximus XI Hero

The best overall ATX motherboard for I9 9900k

Here’s why we think the ASUS ROG Maximus XI Hero is a great overall choice. First, it’s not expensive, and second, it’s a high-end mobo that packs a lot of power and great cooling, comes with fast memory support and it was designed with OC in mind.

ASUS ROG Maximus XI Hero – Specs

  • Chipset: Intel Z390
  • Memory: 4 x DDR4 4400(O.C) DIMM, max. 128GB
  • Storage: 2 x M.2 Socket 3, 6 x SATA 6Gb/s port(s)
  • Multi GPU Support: Nvdia SLI, AMD CrossFireX
  • Expansion Slots: 2 x PCIe 3.0 x16, 1 x PCIe 3.0 x16, 3 x PCIe 3.0 x1
  • Back Panel Ports: 1 x PS/2 keyboard/mouse combo port(s), 1 x DisplayPort, 1 x HDMI, 1 x LAN (RJ45) port(s), 2 x USB 2.0, 1 x Optical S/PDIF out, 1 x Clear CMOS button(s), 5 x Gold-plated audio jacks, 4 x USB 3.2 Gen 2 (red), 2 x USB 3.2 Gen 1 (blue) Type-A, 1 x USB BIOS FlashBack™ Button(s)

In terms of price and performance, the ASUS ROG Maximus XI Hero is the hero every gamer needs. At around $350, this motherboard even caters to those who have no prior knowledge about overclocking. It comes with AI overclocking – so the motherboard will do it all for you after you press a button. The gaming-ready integrated sound card is also a plus.

Final Thoughts

The best way to decide which motherboard is best for your PC build is to start with the form factor – maybe you want to fit the motherboard into a smaller case which means you’ll have to choose a micro ATX. If size is not an issue, then you’re only left with answering these next questions.

Before buying a compatible motherboard for your i9 9900K you should decide what you expect to get out of your CPU:

  • Do you have a restricted budget?
  • Are you an overclocking enthusiast or a power user that wants maximum performance?
  • Are you only interested in getting enough RAM slots that can accommodate at least 16 GB, enough PCI slots (including one or two PCI express x16 slot), and good cooling performance?
  • Do you want some additional features such as Wi-Fi and RGB lighting?

Once you’ve carefully considered the answers to these questions, you may want to go back have a quick look at the top five ATX motherboards fit for your i9 9900K. At this point, we hope that we’ve narrowed down your selection and your number one choice has become more apparent.


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