Best Motherboards for Ryzen 9 3900X in 2021

Best Motherboards for Ryzen 9 3900X in 2021

The Intel Core i99900K killer. Or that’s how AMD positioned the enthusiast chip when it hit stores in July 2019. Did he keep that noble promise? What is certain is that the Ryzen 9 3900X is one of the best gaming CPUs that AMD has produced so far. Love a 1-core computer for less than $500?

No matter how much power you have under the hood, the Ryzen 9 3900X is nothing without an equally performance-oriented mainboard for your home. And as we near the second anniversary of the chip’s launch, there are many options available. Unfortunately, many motherboards to choose from, making this vital choice quickly become a complicated challenge. With this in mind, we’ve put together a list of motherboard recommendations that are a perfect fit for the Ryzen 9 3900X.

Best Motherboards for Ryzen 9 3900X

DesignBuying GuidesRetailer


ASUS ROG B550F brings notable updates over the previous generation of the B450F with 20 sterling RAM speeds, 42 star overclocking RAM speeds, and the additional PCIe 4.0 x16 slot. Above all, the mainboard even has reliable power amplifiers with 12 + 2 demos. Furthermore, PWM, high-quality capacitors, 6-layer PCB, and increased cooling with VRM heat sinks, heat cushions, separate heat sinks for each M.2 slot. And that’s not enough; it even has a pair of Dedicated AIO pump fan headers and a surplus of fan headers.

And as mentioned above, it has an improved memory profile with ASUS Optimum II, which ensures a superior reduction in latency and crosstalk; for the numbers, the motherboard can support a maximum of 128GB DDR RAM, overclockable with a profile for storage, the board offers two M.2 slots, with the central slot supporting PCIe 4.0 mode. Both slots are also configured to better advantage NVM Express RAID for the fastest data speeds and maximum storage flexibility.

For expansion, the motherboard offers 3 PCIe x16 slots, one of which supports PCIe 4.0 mode. If you’re a content creator, the board has a PCIe x1 slot in case you want to add Thunderbolt 3 functionality, and it’s worth noting that the B550F can run two GPUs with AMD CrossFire and NVIDIA SLI support. Aesthetically, the board has a great design with subtle RGB on the board, but it’s not too outrageous. For this, there is the RGB-illuminated ROG logo on the rear I / O and the luminous STRIX branding on the underside of the board. Base. RGB lighting and shades of the same type, the Mobo offers addressable RGB and RGB headers. Overall, the motherboard has all the features for gaming and productivity enthusiasts, making it a tremendous B550 motherboard for Ryzen 9 builds.


  • AMD AM4 socket
  • Supports 3rd generation AMD processors
  • Included WiFi antenna


  • 2nd gen processors not supported

ASUS ROG Strix X570-I Gaming

We are absolutely in love with the gaming form factor of the ASUS ROG STRIX X570I. It’s a power-house in such a mini size. It’s the best ITX motherboard for Ryzen 9 3900X with a three-year warranty. This motherboard can be connected to PCIe x16 version 4. It comes with a premium SupremeFX S1220A audio chipset. The integrated RGB also shows the whole aesthetics of the mainboard.

This Ryzen 9 3900x motherboard is still equipped with the latest WiFi6 for its size, which is top-notch. The LAN chipset comes with a LAN protector to protect your investment. The connector for the latest generation of USB TypeC is also a plus for developers. Unfortunately, there are no postcode displays or diagnostic LEDs to make the initial setup easier. The price of this motherboard is high, but it’s because of its high-end components and MiniITX design.

Due to its size will be limited to 64GB of RAM, but the 5100MHz overclocking potential for RAM is unprecedented for MiniITX boards. It’s the perfect choice for HTPC and SFF chassis. You can build a high-end gaming PC with the latest generation of AMD processors. The 8 + 2 VRM performance phases are precise and powerful enough to support any modern game.


  • 5-way optimization
  • LED illuminated audio jack


  • No postcode display


After a few incomplete years, GIGABYTE did well to regain its reputation by releasing a line of quality motherboards that are best embodied in the AORUS range. The GIGABYTE X570 AORUS Master is one of those offerings and is designed to unlock the full potential of the Ryzen 9 3900X.

While the board has pretty much the same features as GIGABYTE’s flagship Extreme variant, the price is lower and much more palatable if you’ve already invested $ 500 in the Ryzen 9 3900X. In addition, the range of functions is impressive: 14-phase digital VRM from Infineon, advanced thermal design with fin array heat sink and direct-touch heat pipe, three M.2 NVMe PCIe 4.0 with triple thermal shielding, three PCIe 4.0 x16 slots, Intel WiFi 6, Gigabit LAN, RGB Fusion 20, Smart Fan 5, Dual Channel DDR4 DIMMS up to 4400 MHz and ESS Saber DAC Audio.

This list of features, while impressive, is paired with excellent performance and stability, be it in gaming or productivity. Furthermore, all of this is packaged in one of the chicest motherboards on the market, beautifully designed using high-quality components, plenty of RGB lighting, and a polished design that should satisfy the aesthetically conscious builder. The GIGABYTE X570 AORUS Master is a high-end motherboard, so the features, excessive VRM, and expandability may be too much for some, so we only recommend the motherboard for those who take full advantage of the offer. Otherwise, it is better to choose an alternative with fewer features to save some money.


  • Excellent performance
  • Stability attractive aesthetics
  • VRM quality


  • Pricey

ASUS TUF Gaming X570-Plus

ASUS TUF Gaming X570-Plus

The ASUS TUF Gaming X570Plus strikes a good compromise between price and features and secures its place as our best budget option for the Ryzen 9 3900X. Although cheaper than other X570 boards, the ASUS TUF Gaming X570Plus retains the entire ASUS TUF design. Styled with thick VRM heat sinks and I / O board, stamped circuit board, and rugged build quality.

The board is well served in terms of specifications: four DDR4 DIMMs up to 4400 MHz, eight SATA, ALC S1200A audio, two PCIe 4.0 x16, Gigabit LAN, 14 power amplifiers, Digi + VRM, USB 3.2 Gen 2 ports, Aura Sync RG and a complete set Cooling setup with active chipset heat sink, VRM heat sink, M.2 heat sink, fan connectors and Fan Xpert 4.

In terms of performance, the ASUS TUF Gaming X570Plus makes an ideal home for the Ryzen 9 3900X and works well for a reasonably powerful gaming rig when paired with the proper hardware. More than worthwhile and even surprising how well it handles overclocking.

For those jumping off Intel chips or newcomers who want to take advantage of the performance of the Ryzen 9 3900X, the ASUS TUF Gaming X570Plus is an excellent entry-level motherboard into the world of AMD CPUs. Motherboard, the ASUS TUF Gaming X570Plus motherboard offers some pretty impressive specs for the price. But, ultimately, it’s an affordable way to jump on the PCIe 4.0 train.


  • Impressive specs
  • Looks


  • Not the superior quality

ASUS ROG Strix X570-E

ASUS ROG Strix X570-E

The ASUS ROG Strix X570E is undoubtedly one of the best motherboards for Ryzen 9 3900x in the X570 range and offers the brilliant potential of maintaining a sufficiently powerful gaming PC. The x570E was specially developed for games and offers everything a next-generation motherboard should have. An AM4 socket that easily supports up to the Ryzen 5000 series. This ATX motherboard is packed with next-gen features, including dual M.2 support for ultra-fast connectivity and its dedicated heat sink to complete it. It’s certainly there, along with a fair amount of USB 3.2 Gen 2, to go from faster to faster.

The power solution of the ASUS ROG Strix X570E with 16 power levels and ProCool II power connector, alloy chokes, and durable capacitors is also incredibly well designed and offers an excellent basis for high-end processing as well as maximum flexibility when overclocking. In addition, it is responsible for providing a high-end cooling solution for smooth operation. The Strix X570E does just that with its modern active chipset heat sink and an impressive MOS heat sink with an 8mm heat pipe; The M.2 heat sinks already mentioned, together with a sufficient number of fans and AIO pump heads around the mainboard, offer a significantly increased cooling operation with no chance of errors.

A gaming PC requires gaming-grade audio. The Strix X570E doesn’t like to disappoint by delivering high-fidelity audio with the SupremeFX S1220A, which is then enhanced with various state-of-the-art sound technologies to give you the best immersive sound possible. This is because of 2.5 Gbit / s LAN and Intel Gigabit Ethernet, protected with LANguard for longevity. In addition, great WiFi 6 (802.11ax) makes everything twice as fun and convenient. The Strix X570E is an all-time favourite in design and aesthetics, and it’s all on par. It works well, looks great, and is DIY-friendly, making it even more appealing to enthusiasts. The 5-way optimization is the icing on the cake because it gives you maximum control and freedom in personalization. It must become the best motherboard for Ryzen 9 3900x enthusiasts.


  • Heavily featured
  • Quite a lot of USB3 Gen2 ports
  • Excellent overclocking potential


  • No onboard buttons or voltage monitoring points

MSI B450 Tomahawk MAX

MSI B450 Tomahawk MAX

The MSI B450 Tomahawk MAX is the popular B350 Tomahawk that offers users a moderately better range of functions. A gaming-themed motherboard from MSI’s “Arsenal” line of motherboards, the B450 Tomahawk is designed to provide buyers with an affordable option with many of the features found. On the more expensive models. This mainboard has a black PCB with different grey and white variations. On its surface, more precisely in the VRM and Southbridge area, it has radiators that ensure a stylish look and efficient cooling. The low prices make it the best budget motherboard for Ryzen 9 3900x.

The radiators are painted black and stylized in white, with the MSI logos of the device model; the UEFI of this motherboard is very well designed, it has two operating modes, one simple and one more The MSI B450 Tomahawk Max It has 4 + 2 power phases and uses the highest quality components to provide the processor with the most efficient performance. It also means that you can easily overclock the processor with this board. The MSI site states that this board can support up to an AMD Ryzen 9 3900X.

Plus, the motherboard aesthetics are easy to manage, and the oversized VRM heat sink looks great. The back of the motherboard doesn’t have a lot of hardware, and there are indicators where the standoffs can be removed if they are already installed on your device.


  • Great value for money
  • Excellent build quality


  • Light controllers doest work correctly



Another great motherboard on the list is the GIGABYTE X570 AORUS Elite WiFi Gaming Motherboard. This motherboard is highly recommended for gaming professionals, IT enthusiasts, music lovers, and anyone looking to upgrade their CPUs. This motherboard is packed with a multitude of features and a fantastic design to complement the performance. It is one of the best flagship motherboards for Ryzen 9 3900x. It has features like a black circuit board, black heat sinks, black I / O cover with metal slots -DIMMs and PCIe slots from the manufacturer. Known as PCIe armour.

This motherboard also has an Intel I211 AT Gigabit LAN and Intel WiFi 6, so you don’t have to worry about network connectivity. In addition, all motherboards in the Aorus series have the RGB Fusion 2.0, higher than the typical LED. With RGB Fusion on your motherboard, you can control your PC’s external and internal RGB lighting, and gamers and music lovers will love the audio performance of the chipset made possible with the Realtek ALC 1220 VB-Audio Codec HD.

In addition, the Aorus Pro WiFi is fully equipped with numerous ports such as USB 3.1 Gen 2 Type-A and Type C. some other ports are USB e.1 Gen 1 Type-A ports. The AMD X570 chipset, which has full support for AMD Ryzen processors of the 3. It is an excellent motherboard for Ryzen 9 3900x.


  • Great design
  • Easy to set up


  • Heavier



ASUS PRIME X570P is an entry-level gaming motherboard suitable for gamers who want to overclock their CPU and take advantage of PCIe 4.0 capability for the motherboard. Peripheral needs. It’s the best budget motherboard for Ryzen 9 3900X. Support for older PS2 ports is beneficial for users running XP or Windows later for extreme testing.

This Ryzen 9 3900x motherboard chipset is powerful and supports PCIe 4.0 lanes for PCIe x16 slots and x1 slots as well as M.2 slots, but there are no heat sinks for the M.2 drive to allow for throttling avoid. Power users, we recommend that you purchase a third-party heat sink after purchasing this motherboard. Additionally, there is no built-in I / O shield, which could be a problem for some users. Finally, the lack of the USB Type-C port will be a disappointment for developers who need high-speed data transfer from their devices.

This motherboard offers a high-quality audio chipset for entry-level gamers or programmers and a decent LAN, more than enough in real-life scenarios. The actively cooled x570 chipset offers enough power to support the latest GPUs and expansion cards. Enough to start overclocking. It can slightly improve performance in online games like Overwatch, Call of Duty, or PUBG.


  • Dual PCIe 4.0 M.2 slots
  • Flexible cooling controls


  • No rear panel cover

Buying Guide

Power Supply

Motherboards are equipped with power phases that convert the voltage from the power supply unit into the voltages required by the processor. When overclocking, the load on these performance phases becomes significantly greater and, if incorrectly designed, can lead to component failure. Therefore, ensure that the processor load is balanced correctly across the stages and that the overclocking remains stable.


The number of expansion slots can be critical to you. If you are a programmer, we recommend choosing a larger motherboard, preferably ATX motherboard size, as it has a more significant number of expansion slots. Expansion slots that you need for your gaming PC. Not recommended for programmers.


Motherboards come in a variety of colours and visual illustrations. All of this makes it stand out in its chassis. Computers worth installing have RGB flashes, malicious PC cases, and enough fans to dissipate the heat. We need to make sure that our motherboard has enough headers to support the accessories that you will be used to enhance your aesthetics.


The processors have different versions or let’s call it, generation, i.e., 1st generation, 2nd generation, or 3rd generation. This is a crucial point that you need to know. Not all motherboards support the previous three generations. Generation of the processor and then pair it with the motherboard.

M2 Slots

You need an SSD if you want a quick response from your system. And an M.2 slot is required for this. There is at least one m.2 slots on every motherboard. However, more is better. In the list above, you can find two m.2 slots to install multiple SSDs easily.


Updates are possible on your motherboard chipset via the BIOS. With each update, the chipset is updated, and performance is improved. So check if the motherboard supports BIOS updates. In general, most motherboards support BIOS updates. However, you can contact the company representative. 


The guarantee always helps. If there is no warranty information on online shopping websites, visit the manufacturer’s official website. There you will find a guarantee.


We have presented our readers with a wide variety of motherboards that are the best motherboard for Ryzen 9 3900x. We have included different form factors and included two main chipsets, namely the X570 and B550. The purpose of these different motherboards is to help us. Readers make an informed decision and are satisfied with the product they have bought, considering future-proofing, the best compatibility, the best price-performance ratio, and the latest features. Not all features advertised are required to be purchased by all users. 

We think the X570 is a powerful chipset, but it can be overkill for most casual gamers who don’t overclock their PC and use a single-slot M.2 GPU configuration. You can run PCIe 4.0 quickly in individual x16 and M.2 slots, but if you want PCIe 4.0 in all of the expansion slots and use many expansion slots as a developer, then x570 should be your choice. Having a lower number of VRMs is not a problem.

Frequently Asked Questions

Which motherboard should I buy for my Ryzen 9 3900X?

It depends on your budget. If you have a budget, we recommend going for the GIGABYTE B550M AORUS PRO. It has all of the essential features that any competitive gamer needs. It has lower power consumption and is compatible with the latest PCIe 4.0. a high end. In addition, the audio chipset has entry-level performance phases for the occasional overclocker.

Which motherboard is required for the Ryzen 9 3900X?

Ryzen 9 3900X is a robust processor with a lot of overclocking potential. The Asus ROG Strix X570E is the excellent overall choice for this processor. It has a solid 12 + 4 Power Phase VRM to make the most of this processor. It has independent PCIe 4.0 lanes to charge the processor, keep it stable, and run in cold temperatures. The three-year guarantee makes the price worthwhile.

Is Ryzen 9 3900X overkill?

Ryzen 9 3900X may be over the top for most modern-day games like CyberPunk 2077, Red Dead Redemption 2, and Minecraft. Still, if you’re a professional developer and programmer, a faster CPU is never a bad option. The MSI MPG X570 GAMING EDGE WIFI can reduce coding times during video editing.

Is B550 suitable for Ryzen 9 3900X?

B550 is a high-performance chipset that uses CPU lanes to provide PCIe 4.0 for expansion cards and M.2 storage drives. However, if you compete with motherboards like ASUS ROG STRIX X570I Gaming with an x570 chipset, you will see higher CPU temperatures. With B550 chipsets. Whereas x570 chipset-based motherboards consume more power and have active chipset coolers. Overall, the B550 chipsets are well-balanced and ideal for mid-range gamers.

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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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