Best motherboard for Ryzen 9 3900X in 2025 – our top picks
Reviewed By: Kevin Pocock
Table of Contents
The Ryzen 9 3900X was a beast when it first came out, but three generations of processors followed it. While its performance isn't on that level, it should still be enough to handle some modern titles and professional workloads.
On the bright side, since it is an old processor, there are plenty of motherboard options to pair it with, considering that it is based on the AM4 platform, which AMD is still keeping alive with the latest “XT” processors.
We've selected a handful of boards based on their performance, price, and features. We also test our motherboards in-house, which helps us gauge real-world performance and allows us to suggest only the best ones. With that said, let's get right to it, shall we?
Products at a glance
- Best motherboard for Ryzen 9 3900X
Gigabyte X570 AORUS PRO
- Socket: AM4
- Chipset: X570
- Form Factor : ATX
- PCIe Version : PCIe 4.0
- Memory speed : 2933MHz + OC
- Memory capacity : 128GB (4 x 32GB)
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Best runner-up motherboard for Ryzen 9 3900XASUS ROG Strix X570-E
- 2.5Gbps LAN and Intel Gigabit Ethernet with ASUS LANGuard
- 12+4 power stages with ProCool II power connector
- supports up to two M.2 drives
- Active chipset heatsink, MOS heatsink with 8mm heatpipe
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Best budget motherboard for Ryzen 9 3900XASRock X570 Pro4
How we picked
We researched the market and found various options from different manufacturers. We filtered those options based on price, compatibility, performance, and other features. We also have a PC Guide Testing Lab in which we've mentioned our testing process for various components. If you're wondering how we select and review products, we've got your back there as well.
Our top picks
- Socket: AM4
- Chipset: X570
- Form Factor : ATX
- PCIe Version : PCIe 4.0
- Memory speed : 2933MHz + OC
- Memory capacity : 128GB (4 x 32GB)
- You can get it for cheap on sale
- It has good performance
- It is power efficient
- Sometimes rare to find new
- Revisions can cause confusion with BIOS update
The Ryzen 9 3900X was the flagship processor of the Ryzen 3000 series, and many still use it in their rigs paired with modern GPUs. For this processor, we recommend the Gigabyte X570 Aorus Pro. When we tested this motherboard for our X570 Aorus Pro review, it showed excellent efficiency and performance.
This is an ATX motherboard with dimensions of 30.5cm x 24.4cm, which means it offers a good size. Due to that size, you get plenty of expansion options like extra RAM and PCIe slots. That said, it won't fit inside a mini-ITX case, so if you have a low-profile build, we recommend the best mini-ITX motherboard.
It has a maximum memory capacity of 128GB DDR4 RAM running at a maximum frequency of 2933 MHz. This should be more than enough to handle intense gaming and productive sessions.
To put it into perspective, I have a Ryzen 5 5600X paired with 16GB DDR4 RAM running at 3,600 MHz, but my motherboard is the Gigabyte X570 Aorus Elite, which supports overclocking on up to 4,000 MHz. That said, if I disable XMP, the frequency drops to 2,133 MHz, and even with that, I didn't run into any stuttering or lag issues in titles like Apex Legends, Battlefield 2042, Insurgency: Sandstorm, Rainbow Six Siege, and Counter-Strike 2.
This motherboard allows Ryzen 5000 CPUs to soar to their full potential, this chipset may be old, but it's still the best that AM4 has to offer. And it's still more than capable of a few surprises today.
PC Guide
This motherboard features two PCIe slots. The top one is the primary PCIe slot, which gets access to the full 16 lanes and is reinforced to handle heavy modern GPUs. The secondary PCIe slots have the x8 configuration, and while you can mount a GPU on it, it isn’t recommended, and it would be better to install a storage device.
The X570 Aorus Pro has a dual power delivery design with 12 + 1 phases. What this means is that the power goes through 12 phases or “filters” on the first layer and then through one more before reaching the CPU. This ensures the power is stable and clean, which is crucial for the CPU, especially if you're overclocking it, which this chipset is made for.
For its performance and efficiency, we paired it with the Ryzen 7 5800X3D and ran different benchmarking software to simulate various workloads. The 5800X3D has a max TDP of 105W, and we saw this motherboard pulling a maximum of 116.46W from the wall socket and package power of 113.72W, which is perfectly fine.
So, the X570 Aorus Pro wasn't limiting the 5800X3D's performance in any way, and it also remained cool with a maximum mobo and VRM temperature of 53°C and 47°C, respectively. That said, there was a loss of 2.7W, which isn't a lot, but it is important to remember that no system is 100% power efficient, and 2.7W is on the low side.
Overall, this is an excellent motherboard for the Ryzen 9 3900X. It has everything the 3900X needs to push through its limits and deliver top-notch performance.
What users say
According to Amazon reviews, this motherboard has a good build quality and great features. One reviewer said, “This board handles a 3900x pretty well.” Another user stated, “This board should easily handle whatever AMD throws out there in the 8 to 16 core space. The bios is easily understandable, and my memory ran easily at the XMP overclock profile, getting its advertised 3600mhz.”
- 2.5Gbps LAN and Intel Gigabit Ethernet with ASUS LANGuard
- 12+4 power stages with ProCool II power connector
- supports up to two M.2 drives
- Active chipset heatsink, MOS heatsink with 8mm heatpipe
- It has impressive I/O options
- It has great features
- It has a stunning design
- It has only two M.2 slots
- It is expensive for an AM4 motherboard
Much like the GIGABYTE X570 AORUS Master, the ASUS ROG Strix X570-E Gaming sits somewhere between a mid-range and flagship motherboard, delivering a wealth of features, strong performance, and stellar looks.
The ROG Strix name implies a certain quality, something this board channels in droves, alongside the line-up's head-turning style, notably the commanding heatsinks and Aura Sync RGB.
Performance should be up there with the AORUS Master, and there's a sense the board offers the Ryzen 9 3900X the perfect ecosystem to thrive, whether that's high-end gaming or those demanding multi-core tasks.
The build quality is also on point, as seen in the welcome touches to the cooling solution and power management: an active chipset heatsink, 16 power stages, a ProCool II power connector, a MOS heatsink with a heat pipe, M.2 heatsinks, and durable components throughout. So, even if your components are overclocked, this motherboard should run relatively cool.
Other features include 2.5 Gbps LAN, Intel Gigabit, Wi-Fi 6, generous I/O (HDMI, DisplayPort, plenty of USB 3.2 ports, and more), eight SATA ports, four DIMM slots up to 4400MHz, two PCIe 4.0 x16, and outstanding audio thanks to SupremeFX S12204 audio. This means that you have plenty of options to connect various peripheral and storage devices without worrying about running out of space.
Overall, the ASUS ROG Strix X570-E Gaming offers an awful lot. The question is whether there's too much there for your needs. If you'll make use of it all, the board is a perfect match for the Ryzen 9 3900X.
What users say
According to Amazon reviews, this board is feature-rich and provides good value. One reviewer said: “I paired this with a R7 2700x to replace my old FX9590 and Asus M5A99FX Pro. The build quality seems really good, everything looked durable and built to tight tolerances.”
- It has decent performance
- It comes at an affordable price point
- It doesn’t have a backplate for protection
If you want an X570 motherboard but don't want to spend a big amount, the ASRock X570 Pro4 is worth considering. Performance floats somewhere around middling; not impressive, but not sub-par either.
The board performs more or less like the ASUS TUF Gaming X570-Plus, minus the good overclocking chops. You undoubtedly get what you pay for, but the board should be able to handle stock 3900X speeds without any trouble.
Its ten-power phase design should be good enough to deliver stable power to the processor. In addition, it has four DDR4 DIMMs that support a maximum of 4,066 MHz, meaning you can stack up on RAM slots to boost the overall performance.
This motherboard also features two PCIe 4.0 x 16 and two PCIe 4.0 x 1 slots, meaning you can mount the GPU on the primary slot while using the remaining slots to install storage or other devices like a soundcard. Despite all of this, we are a far cry from the GIGABYTE X570 AORUS Pro, for example, but there's more than enough here to hook up a respectable gaming rig.
ASRock has cut corners to keep the price, and you can easily see where. For example, the I/O lacks an integrated backplate. Most apparent is the VRM heatsink, which feels inadequate for the board's ten power phases, hampering the ASUS TUF Gaming X570-Plus' overclocking potential.
Similarly, the M.2 and chipset heatsinks appear more like an afterthought to complement the board's aesthetic rather than a concerted effort to keep temperatures in check. Fortunately, this shouldn't affect the performance significantly, and temperatures should remain within a respectable range.
What users say
According to Amazon reviews, this board delivers good performance, especially considering the price point at which it is coming. One reviewer said: “I'm using a AMD Ryzen 9 5900x and it's completely stable on the newest bios version.”
How to select the best motherboard for Ryzen 9 3900X
Selecting a motherboard isn't just about picking the option with the most bells and whistles, as those options can cost an arm and a leg. On top of that, depending on your processor, you might not even need all the features it is offering.
So, before investing in a motherboard for the 3900X, there are a couple of factors you need to keep in mind. They'll help you make an informed decision and operate within your budget.
Budget
Your budget is the most important aspect to consider before deciding on a motherboard. Plenty of options are available, but depending on their features and chipset, the price could vary, putting them at an enthusiast, mid-range, or budget level. We recommend cutting through the clutter and filtering out the available options based on your budget.
This should help ensure you don't overspend on a high-end motherboard but get just the right one according to your needs, offering a good balance between performance and value.
Compatibility
When choosing a motherboard for the Ryzen 9 3900X, it is crucial to check the compatibility between the motherboard socket and the CPU. The 3900X requires an AM4 socket, which has been around for a couple of years, meaning you'll have plenty of AM4 motherboards. That said, you might need to settle for a used AM4 motherboard, as getting your hands on a new one could prove to be challenging.
However, if you do get one, you'll have plenty of upgrade options, as the Ryzen 5000 series processors are also based on the AM4 platform. So, to boost your system's performance, you can slap on a Ryzen 7 5800X3D for gaming or the Ryzen 9 5900X for productivity. Both of these processors are great, as we've thoroughly reviewed them in-house.
Usage
You'll have to decide which chipset you want to get depending on your usage. For example, if you want a high-end chipset with plenty of features that aid in stable overclocking, an X570 motherboard would be the best option, but it would also cost the most. However, if you don't want to overclock your CPU and are fine with the base-level performance, a B550, B450, or A520 motherboard should serve you well.
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