Best Motherboards for i9-9900k in 2021 – Complete Buyer’s Guide

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When the industry leader Intel released the Core i9-9900k model, it was to further its policy of continuous improvement in CPU architecture. It was the all too familiar untiring drive to push the best processor into the market. This technology is a 64-bit 8-core x86 desktop microprocessor with remarkable performance over previous models. Welcoming this innovation, the best motherboards began to run i9-9900k as a norm.

The motherboard is the mainframe of a computer, with the power to hold the entire system together in one piece, ensuring that every component in the system works correctly and without a hitch. But what are the best motherboards designed for the i9-9900k processor in order to obtain the ultimate user experience?

Quick Overview: Top Motherboards for an i9-9900k CPU

The significance of i9-9900k

The core i9-9900k is one of the fastest mainstream processors in the market right now. It is also one of the most high-priced. It has great support for games and consistently produces high performance in both single and multi-threaded workloads.

The i9-9900K operates at a 3.6 GHz speed with a TDP of 95 W and a Turbo Boost frequency of up to 5 GHz. This microchip buoys up to 128 GiB of DDR4 memory. It includes Intel’s UHD Graphics 630 IGP, operating at 350 MHz and 1.2 GHz burst frequency.

Related: Best Motherboards for i7-9700k

Intel added more cores to its older generation models in a desperate effort to keep up with AMD’s Ryzen CPU – a struggle that has resulted in its 9th generation Core processors. The Core i9, thus, has eight Hyper-Threaded Cores (8C/16T) and the highest frequencies ever.

Intel also responded to competition by increasing RAM density through the doubling of memory capacity up to 128 GB. As the battle for processor supremacy continues, we shall examine the motherboards that have adopted this model and select the best from the lot.

Motherboards for i9-9900k in 2021 Selection

ImageProductRatingCheck Price
Our Top Pick
ASUS ROG Maximus XI Hero
ASUS ROG Maximus XI Hero

Chipset: Intel Z390
RAM: 4 / 64 GB DDR4 4400+ MHz
PCIe: 2 x 16X Slots
Graphics: HDMI / DP
32Gb/s M.2: 2 x M.2
Wireless: 2×2 MU-MIMO 802.11ac
Form: ATX

9.7
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Best Bugdet
ASRock Motherboard Z390M
ASRock Motherboard Z390M

Chipset: Intel Z390
CPU Socket: LGA 1151

RAM: 4 / 64 GB DDR4 4400+ MHz
PCIe: 2x PCI-Express 3.0 x16
Wireless: 801.11ac
Form: ATX

9.5
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Gamers’ Choice
ASUS ROG Strix Z390-F
ASUS ROG Strix Z390-F

Chipset: Intel Z390
CPU Socket: LGA 1151
RAM: 4 / 64 GB DDR4
PCIe: 2x PCI-Express 3.0 x16
Wireless: 802.11a/b/g/n/ac
Form: ATX

9.1
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Heat Control
GIGABYTE Z390 AORUS ULTRA
GIGABYTE Z390 AORUS ULTRA

Chipset: Intel Z390
CPU Socket: LGA 1151
RAM: 4 / 64 GB DDR4
M.2: 3 (M.2 Heatsink *3)

PCIe: 1 x16, 1 x8, 1 x4 Slots
Wireless: Intel CNVi 2×2 802.11ac
Form: ATX

8.8
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Premium Board
MSI MPG Z390 Gaming PRO
MSI MPG Z390 Gaming PRO

Chipset: Intel Z390
CPU Socket: LGA 1151
RAM: 4 / 64 GB DDR4
M.2: 2 x M.2 32Gb/s
PCIe: 3 x PCI-E 3.0 x 16 slots
Wireless: Intel AC 9560
Form: ATX

8.6
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1. ASUS ROG Maximus XI Hero – Best Motherboard for i9-9900k

Our Top Pick
Best Motherboard for i9-9900k

ASUS ROG Maximus XI Hero

Loaded with more cores for action beyond the call of duty is our top pick, the ASUS ROG Maximus XI Hero motherboard. Prepared for 9th generation Intel Core processors this motherboard has a unique five-way optimization – simple, flexible tools that allow you to tweak virtually every aspect of the system. 

The well-respected ROG UEFI BIOS is available to help you further take control. Also, a devoted onboard clock generator delivers dynamic reference clocks to the cores and sectors.

This allows you to stretch the capabilities beyond the syllabus. You can fine-tune everything, from audio to storage, so it’s easy to get every part of the system up to max speed. The ASUS ROG Maximus XI Hero motherboard is indeed built for overclocking.

Core Features

The OptiMem II technology maps memory signal paths across different PCB layers. This considerably reduces crosstalk. Also, a customized T-Topology layout of the board furnishes time-aligned signaling.

Related: Best Motherboards with WiFi and Bluetooth

Another outstanding feature of this board is the cooling system. It has one of the most complete cooling controls. There are three user-adjustable thermal sensors – all managed by Fan Xpert 4 or UEFI.

The ASUS ROG Maximus XI Hero motherboard features the SupremeFX that uses the S1220 codec. The SupremeFX is an integrated audio solution for that scintillating, unique, sound production.

In the design and construction of this motherboard, ROG has obviously paid much attention to detail and excellence.

PROs
  • Excellent overclocking capabilities
  • Fantastic heat control
  • Excellent sound output
  • Attractive physical design
CONs
  • High price
  • Limited connectivity slots

2. ASRock Z390M – Best Budget Motherboard for i9-9900k

A Great Price Deal
Best Budget Motherboard for i9-9900k

ASRock Motherboard Z390M

Our top pick for the best budget motherboard is the ASRock Z390M PRO4. With an attractive pure black appearance, it presents the image of rock-solid quality and a touch of an exciting mystery.

The thick glass fabric of this board shrinks the gaps in the board layers, protecting it against electrical shorts triggered by humidity.

The ASRock Z390M PRO4 motherboard uses the cutting edge i9-9900K processor. It thus supports speeds of up to 2666 MHz, and with overclocking, up to 4300 MHz.

Core Features

This board can handle intense graphic apps, as it is similar to AMD’s CrossFireX technology for connecting several GPUs. There are three Graphics Outputs, including three types of often-used connectors.  Sound output is via a Realtek ALC1220 port.

The ASRock Z390M PRO4 motherboard has six SATA 6G connectors for hard drives and SSDs (with RAID support). Up to 64GB of RAM can be placed across four DIMM slots.

Related: Best Motherboards with WiFi 6

If you examine the board, you will find several excellent options for fixing external peripherals. There is an I/O panel with two USB 3.1 Gen 2 ports (Type-A and Type-C) and eight USB 3.1 Gen 1 ports. There are several other technical innovations in this motherboard. It is indeed a top-class board with good design, good speed, and high performance.

PROs
  • Remarkably low price for a high performing board
  • Excellent heat and stability control
  • Easy to use BIOS
  • Plenty of AIO and USB support
  • Plenty of fan headers
CONs
  • No analog 5.1 speaker connections

3. ASUS ROG Strix Z390F – Excellent Gaming Motherboard for i9-9900k

Gamers Look no Further
Excellent Gaming Motherboard for i9-9900k

ASUS ROG Strix Z390-F Gaming

ASUS ROG Strix Z390-F Gaming motherboard is a premium motherboard that is excellent for games and intense graphics.

Republic of Gamers (ROG) is an ASUS brand dedicated to making the best gaming hardware and software. It was created in 2006 with a complete line of novel products now renowned for high performance and good quality.

For instance, the unique gaming facilities on the ROG Strix Z390-F Gaming motherboard features a 5-Way Optimization for control of the system by users interested in overclocking.

Core Features

With the right tweak, the system overclocks intelligently using smart prediction and its remarkable thermal telemetry that allows the FanXpert 4 to dynamically cool the system. With correct tuning, the processor overclocks excellently, and the fan speeds are tuned to provide the best possible balance between cooling and performance.

The Dual M.2 sockets, the Gigabit LAN provision and the USB 3.1 Gen2 slot provide maximum connection speeds, while the OptiMem II guarantees stability of the DRAM overclocking.

The pre-mounted I/O shield ensures that your installation efforts are streamlined, thus illustrating how Asus gives attention to details and quality.

PROs
  • Excellent support for games
  • Fantastic overclocking capacity
  • Enough fan headers
  • Enough USB provision
  • High-quality audio & onboard WiFi
CONs
  • Only one onboard RBG lighting area

4. GIGABYTE Z390 AORUS Ultra – Best i9-9900k Motherboard for Heat Control

Pristine Heat Management
Best i9-9900k Motherboard for Heat Control

GIGABYTE Z390 AORUS ULTRA

AORUS is a first-rate gaming brand powered by GIGABYTE. Its purpose is to deliver excellent gaming products like laptops, motherboards, graphics cards, gaming keyboards, and several other gaming hardware and gears. 

The idea is to provide users with the most exciting, extreme gaming experiences they can get anywhere.

Related: Best Low-Profile Mechanical Keyboards

The Z390 AORUS ULTRA Motherboard lives up to its billing. Its top-notch and unique features show that a lot of planning went into the design and manufacture of this PCB.

Core Features

Consider the advanced thermal design. The Z390 AORUS ULTRA uses a high performance thermal strategy to combine its Multi-cut Heatsink, Direct Touch Heatpipe, and its thick thermal pads to deliver its ultimate MOSFET cooling effects.

Thus, intense system users, overclockers and gamers can do their business without hitches.

The system also has Smart Fan 5 whose function is to allow for user interchange of fan headers to display different thermal sensors at several locations on the motherboard, and provide real-time details on flow rates and temperatures.

This unique board’s triple M.2 sockets use Thermal Guards for additional cooling. The Thermal Guard helps to avoid throttling and jams due to the activities of high-speed M.2 SSDs. It thus dissipates heat before it becomes a problem.

Related: Best Motherboards for i7-8700k

The Z390 AORUS ULTRA motherboard has 12+1 phases CPU power design that includes both digital PWM Controller and DrMOS. These digital controllers provide amazing precision in supplying power to the board’s most power-demanding components.

Thus, the board maximizes the use of the 9th Generation Intel Core processors.

PROs
  • Incredible thermal design for heat control
  • Strong & attractive design
  • Three M.2 slots, each with heatsinks
  • Excellent overclocking
CONs
  • Rather pricey, but absolutely worth the expense

5. MSI MPG Z390 Gaming PRO – Premium Motherboard for i9-9900k

Premium Design Motherboard
Premium Motherboard for i9-9900k

MSI MPG Z390 Gaming PRO Carbon

With a beautiful design said to have been inspired by the curve and shape of supercars, MSI MPG Z390 Gaming PRO Carbon LGA 1151 showcases one of the best motherboards in the market.

This board offers colorful customization features with MSI Mystic Light RGB App which can be tuned for better performance by Core boost, the DDR4 Boost, the M.2 Shield Frozr, and other great features.

One of the fine features of this board is its amazing Mystic Light. 16.8 million possible colors and 29 effects, all controlled by a single click. 

Gamers would love this system, as it gives them just the right speed they desire.

Core Features

The MSI MPG Z390 Gaming PRO Carbon LGA 1151 has a sound Audio Boost 4 with NAHIMIC 3. These are made up of clever audio circuitry, a high quality ALC1220 audio processor, a dedicated amplifier, and high quality audio capacitors designed to provide immersive sound.

The general purpose is to reward your ears with that special studio effect of sound that elevates your gaming experience to new heights.

PROs
  • Mystic Light feature
  • Excellent speed & top sound output quality
  • Excellent support for games
  • Good voltage regulator
  • Friendly price
CONs
  • Reduced I/O ports compared to its predecessor

To conclude – What’s the best motherboard for i9-9900k overall?

After judging its technical capabilities, we believe that the ASUS ROG Maximus XI Hero is the top motherboard for i9-9900k plus it’s considerably more powerful than its close competitors. We feel that ASUS did the best job at taking advantage of an i9-9900k power. In certain circumstances, you will absolutely need this motherboard for your smart build. 

If your work involves a lot of photos, videos, or 3D rendition, or you consider entertainment as very important, then the i9-9900K is ideal. If you want a PC for use in playing and recording or broadcasting games to social media platforms, then the 9900K is also a must.  And do get it if you’re a pro-gamer operating at 240 frames or more per second.

Andrew Smith