Here are the 5 best motherboards for your Ryzen 9 9900X3D that will be able to run the CPU without thermal constraints.

The 9900X3D is a high-performance CPU with 3D V-cache alongside 12 cores and 24 threads. The CPU operates at 170W TDP, the same as the 9950X3D. With four fewer cores, the 9900X3D remains a very powerful processor, but it requires explicit tuning to unlock its full potential. Below are a few motherboards that will help with that.
Note: Asrock boards are intentionally avoided due to multiple failures with 3D-Vcache chips. Although a new BIOS from ASRock fixes the issue, the user may be completely unaware of this, and in the process, use the default BIOS bundled with the motherboard, ultimately to its demise.
Also Read: 5 Best Motherboards for Intel Core Ultra 5 245K
1. ASUS ROG Strix X870E-E Gaming WiFi

The Strix 870E is designed for system tuners and enthusiastic gamers seeking a powerful motherboard that meets their specific requirements. The Crosshair Hero is an upgrade to this product, but thankfully, most of the BIOS features from the Crosshair are carried over to this board. Memory tuning may not be as precise as the Crosshair, but it would still be advantageous, given that both boards support AEMP and AI-assisted overclocking.
Specifications | Details |
---|---|
VRM | 18+2 power stages |
Chipset | AMD X870E |
Socket type | AM5 (LGA 1718) |
Memory | 4 x DDR5 DIMM slots, supports up to 256GB, DDR5 up to 8400+ MT/s (OC) with Dual Channel and EXPO |
NVMe Storage | 5 x M.2 slots |
GPU support | 1 x PCIe 5.0 x16 slot (x16 mode), 1 x PCIe 4.0 x16 slot (x4 mode) |
2. MSI MPG X870E Carbon WiFi

The Carbon is for gamers and system integrators seeking a dark-toned build aesthetic. In terms of VRM, the foundation is rock solid, able to drive the 9900X3D and higher-tier CPUs without any issues. The most optimal way to extract performance is to use the frequency curve optimizer and apply undervolt.
Specifications | Details |
---|---|
VRM | 18+2+1 phases with 90A SPS |
Chipset | AMD X870E |
Socket type | AM5 (LGA 1718) |
Memory | 4 x DDR5 DIMM slots, supports up to 256GB, DDR5 up to 8000+ MT/s (OC) with Dual Channel and EXPO |
NVMe Storage | 5 x M.2 slots |
GPU support | 2 x PCIe 5.0 x16 slots (x16 or x8/x8 modes), 1 x PCIe 4.0 x16 slot (x4 mode) |
3. Gigabyte X870E Aorus Master

The Aorus Master is also for users who want the steel-like build aesthetics within their system. The VRM is again outstanding, easily driving the 9900X3D and higher-tier CPUs. Along with that, Gigabyte’s simplistic BIOS helps novice users with a seamless operation.
Specifications | Details |
---|---|
VRM | 16+2+2 phases with 110A SPS |
Chipset | AMD X870E |
Socket type | AM5 (LGA 1718) |
Memory | 4 x DDR5 DIMM slots, supports up to 256GB, DDR5 up to 8600+ MT/s (OC) with Dual Channel and EXPO |
NVMe Storage | 4 x M.2 slots |
GPU support | 1 x PCIe 5.0 x16 slot (x16 mode), 2 x PCIe 4.0 x16 slots (x4 mode) |
4. MSI MAG B850 Tomahawk Max WiFi

The B850 Tomahawk is for budget buyers who want all the AMD CBS (overclocking) goodness baked into an affordable product. The VRM design is perfect for the 9900X3D and even the 9950X3D. Users should be able to run their CPUs at unlimited power with this board.
Specifications | Details |
---|---|
VRM | 14+2+1 phases with 80A SPS |
Chipset | AMD B850 |
Socket type | AM5 (LGA 1718) |
Memory | 4 x DDR5 DIMM slots, supports up to 256GB, DDR5 up to 8400 MT/s (OC) with Dual Channel and EXPO |
NVMe Storage | 4 x M.2 slots |
GPU support | 1 x PCIe 5.0 x16 slot (x16 mode), 1 x PCIe 4.0 x16 slot (x4 mode) |
5. ASUS TUF Gaming X870-Plus WiFi

The TUF X870-Plus is for users who want the benefits of the X800 series chipsets, but are willing to settle for a bit of cutdown. The X870 chipset is slightly inferior to the X870E, but as for VRM, this motherboard packs a strong foundation. Gamers and system builders can easily pair the 9900X with this board and not worry about any crashes, at stock settings with the latest BIOS.
Specifications | Details |
---|---|
VRM | 16+2+2 phases with Dr.MOS |
Chipset | AMD X870 |
Socket type | AM5 (LGA 1718) |
Memory | 4 x DDR5 DIMM slots, supports up to 256GB, DDR5 up to 8000+ MT/s (OC) with Dual Channel and EXPO |
NVMe Storage | 4 x M.2 slots |
GPU support | 1 x PCIe 5.0 x16 slot (x16 mode), 1 x PCIe 4.0 x16 slot (x4 mode), 2 x PCIe 3.0 x1 slots |
Verdict
All of the motherboards are an excellent fit for the 9900X3D. Pure budget buyers will find the B850 Tomahawk Max highly appealing. Mid-to-high-end buyers will likely benefit from the rest of the board’s stated here.
Also Read: 5 Best Motherboards for Intel Core i5 14600K
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