Buyers often treat an X399 board like a generic desktop upgrade, then discover that Threadripper support, socket details, and platform age matter far more than a flashy feature list. That small assumption can turn an exciting build into an expensive compatibility puzzle.
This roundup compares the best x399 motherboards across familiar and less familiar listings, separating useful platform details from marketing noise. Keep reading for a clearer starting point.
Key Takeaways
- Confirm the TR4 socket and X399 chipset before matching a board with any Threadripper processor.
- Check supported CPU generations carefully, especially when choosing between first-generation and WX-series Threadripper chips.
- Prioritize DDR4 capacity and channel support if the system will handle rendering, virtualization, or large datasets.
- Count the available M.2 and PCIe slots against your storage, graphics, and expansion plans.
- Verify the form factor, BIOS support, and power-delivery requirements before selecting a case or power supply.
| Threadripper Workhorse |  |
ASRock Phantom Gaming 6 TR4 | TR4 Threadripper support | DDR4 3400+ listed | Up to 128GB memory | View on Amazon | Read Review |
| Feature-Rich Enthusiast |  |
Gigabyte AORUS Gaming 7 X399 | Three M.2 slots | Four-way SLI support | Killer LAN networking | View on Amazon | Read Review |
| Storage-Minded Creator |  |
ASUS Prime X399-A TR4 | M.2 and U.2 storage | USB 3.1 Gen2 | EATX workstation layout | View on Amazon | Read Review |
| Extreme Core Platform |  |
X399 Professional Gaming TR4 | Supports 2990WX processors | DDR4 3600+ overclocking | Standard ATX format | View on Amazon | Read Review |
| High-Memory Builder | ASRock Professional Gaming X399 | Supports 2990WX processors | DDR4 3600MHz support | M.2 storage support | View on Amazon | Read Review | |
| Compact Capacity Pick | ASRock Phantom Gaming 6 128GB | Up to 128GB memory | DDR4 3400+ support | ATX case compatibility | View on Amazon | Read Review | |
| Intel Platform Alternative |  |
Gigabyte AORUS Pro Z390 | Onboard AC Wi-Fi | Two M.2 slots | RGB Fusion lighting | View on Amazon | Read Review |
| Multi-Drive Specialist | ASRock Phantom Gaming 6 TR4 | Three M.2 slots | Eight DDR4 slots | Quad-channel memory | View on Amazon | Read Review | |
| Memory Expansion Leader |  |
ASRock X399 Taichi 128GB | Eight DDR4 slots | Up to 128GB memory | M.2 storage support | View on Amazon | Read Review |
| Intel HEDT Stand-In |  |
ASRock X299 Extreme4 ATX | Intel X299 platform | LGA2066 socket | ATX motherboard format | View on Amazon | Read Review |
More Details on Our Top Picks
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ASRock Phantom Gaming 6 TR4
For a high-core-count workstation, this board offers a practical TR4 platform with support listed for Threadripper chips including the 1920X, 1950X, 2950X, and 2990WX-class family. The advertised DDR4 3400+ support and 128GB capacity suit demanding creation, rendering, and multitasking workloads.
Its ATX layout should fit many full-size cases, while the Threadripper socket provides substantial CPU bandwidth. The main limitation is the sparse listing, so verify the exact ASRock model, BIOS compatibility, and included accessories before ordering.
- Brand:ASRock
- Chipset:X399
- Socket:TR4
- Form Factor:ATX
- Memory Support:DDR4, 128GB
- Additional Feature:Supports Threadripper 1920X
- Additional Feature:Supports Threadripper 2950X
- Additional Feature:DDR4 3400+ support
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Gigabyte AORUS Gaming 7 X399
Choose this board if you want an enthusiast Threadripper build with substantial storage and graphics flexibility. Its listed three M.2 slots, front USB 3.1 connectivity, and four-way SLI support give a multi-device system plenty of expansion potential.
Gigabyte also includes Killer LAN and RGB Fusion for gaming-focused networking and coordinated lighting. The honest tradeoff is platform age, since X399 and first-generation Threadripper hardware are specialized choices rather than a current mainstream upgrade path.
- Brand:Gigabyte
- Chipset:X399
- Socket:TR4
- Form Factor:ATX
- Memory Support:DDR4
- Expansion Slots:Four-way SLI
- Additional Feature:Front USB 3.1
- Additional Feature:RGB Fusion lighting
- Additional Feature:Killer LAN
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ASUS Prime X399-A TR4
The ASUS Prime X399-A fits users building a Threadripper workstation around fast storage and extensive connectivity. Its listing calls out M.2 and U.2 support, USB 3.1 Gen2, and compatibility with DDR4 memory, a useful mix for editing, 3D work, and large project files.
Aura Sync lighting and 3D-printing mounts add customization without making the board purely gaming-focused. Keep in mind that the EATX form factor needs a case with suitable motherboard clearance, which can narrow your enclosure choices.
- Brand:ASUS
- Chipset:X399
- Socket:TR4
- Form Factor:EATX
- Memory Support:DDR4
- Additional Feature:Aura Sync RGB
- Additional Feature:3D-printing mounts
- Additional Feature:USB 3.1 Gen2
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X399 Professional Gaming TR4
This board targets users who need support for high-core-count Threadripper processors, including the 2990WX, 2970WX, and 2950X. Its listed DDR4 3600+ overclocking support makes it appealing for performance-focused builds where memory tuning matters.
The ATX format keeps case compatibility broader than EATX alternatives. However, the listing does not identify a clear manufacturer or provide detailed connectivity information, so confirm the seller, board revision, BIOS support, and included features before committing.
- Chipset:X399
- Socket:TR4
- Form Factor:ATX
- Memory Support:DDR4 3600+ OC
- Additional Feature:Supports Threadripper 2970WX
- Additional Feature:Supports Threadripper 2950X
- Additional Feature:High-core-count workstation focus
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ASRock Professional Gaming X399
For a serious Threadripper gaming or workstation build, this ASRock model offers compatibility with the 2990WX, 2970WX, and 2950X processors. The advertised DDR4 3600MHz support and M.2 storage make it suitable for users balancing large compute loads with fast boot and application drives.
Its ATX layout is easier to accommodate than a larger extended board, and the product title clearly identifies the intended platform. The limitation is that the listing gives little detail about networking, audio, USB connectivity, or PCIe slot arrangement.
- Brand:ASRock
- Chipset:X399
- Socket:TR4
- Form Factor:ATX
- Memory Support:DDR4 3600MHz
- Additional Feature:Supports Threadripper 2970WX
- Additional Feature:Supports Threadripper 2950X
- Additional Feature:M.2 storage support
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ASRock Phantom Gaming 6 128GB
This Phantom Gaming 6 listing makes sense for a moderate-size Threadripper system that still needs substantial memory capacity. It lists 128GB DDR4 support, DDR4 3400+ speeds, and compatibility with several popular first- and second-generation Threadripper processors.
The ATX design is easier to house than an EATX board, which helps with case selection. Still, the listing provides no feature bullets and closely resembles another Phantom Gaming 6 entry, so confirm the exact board identity and BIOS condition before purchase.
- Brand:ASRock
- Chipset:X399
- Socket:TR4
- Form Factor:ATX
- Memory Support:DDR4, 128GB
- Additional Feature:Supports Threadripper 1920X
- Additional Feature:Supports Threadripper 1900X
- Additional Feature:Supports Threadripper 2950X
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Gigabyte AORUS Pro Z390
This is not an X399 motherboard, but an Intel Z390 board for LGA1151 processors. Its onboard AC Wi-Fi, two M.2 slots, and RGB Fusion lighting make it a reasonable fit for an Intel gaming system, not a Threadripper build.
The thermal guards around the M.2 slots can help keep storage hardware organized and protected within the board layout. The clear limitation is platform incompatibility: it cannot support AMD TR4 CPUs, so exclude it from an X399 shortlist unless you are intentionally switching processor platforms.
- Brand:Gigabyte
- Chipset:Z390
- Socket:LGA1151
- Form Factor:ATX
- Additional Feature:M.2 thermal guards
- Additional Feature:Onboard AC Wi-Fi
- Additional Feature:RGB Fusion
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ASRock Phantom Gaming 6 TR4
This Phantom Gaming 6 listing is aimed at Threadripper builders who want several fast storage devices and broad memory capacity. The advertised three M.2 slots, eight DDR4 slots, and quad-channel memory support create a strong foundation for content creation, virtualization, and large project libraries.
PCIe 3.0 connectivity supports the platform’s expansion ecosystem, while RGB adds a visual touch for open-case builds. The listing contains a model-name typo and limited board details, so verify the exact part number, BIOS support, and slot layout before buying.
- Brand:ASRock
- Chipset:X399
- Socket:TR4
- Memory Support:Eight DDR4 slots
- Expansion Slots:PCIe 3.0
- Additional Feature:RGB lighting
- Additional Feature:Supports Threadripper 2950X
- Additional Feature:Supports Threadripper 2970WX
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ASRock X399 Taichi 128GB
The X399 Taichi is a strong match for a memory-heavy Threadripper workstation, with eight DDR4 slots and support for up to 128GB of system memory. Its TR4 compatibility covers processors such as the 1900X, 1920X, and 2950X, while PCIe 3.0 and M.2 support provide room for expansion and fast storage.
That combination works well for rendering, virtual machines, and demanding multitasking, where memory capacity can matter as much as raw clock speed. The product title does not specify memory frequency, networking, or the exact M.2 count, so those details need confirmation.
- Brand:ASRock
- Chipset:X399
- Socket:TR4
- Form Factor:ATX
- Memory Support:Eight DDR4 slots, 128GB
- Expansion Slots:PCIe 3.0
- Additional Feature:Supports Threadripper 1920X
- Additional Feature:Supports Threadripper 2950X
- Additional Feature:USB 3.1 support
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ASRock X299 Extreme4 ATX
The X299 Extreme4 belongs to Intel’s X299 high-end desktop platform, using an LGA2066 socket rather than AMD’s TR4 socket. It may suit an Intel workstation build, particularly if you already have a compatible processor and want an ATX motherboard.
For an X399 roundup, though, this is the wrong platform and should not be selected for Threadripper. The chipset and socket mismatch are decisive, like bringing the right toolbox to the wrong engine.
- Brand:ASRock
- Chipset:X299
- Socket:LGA2066
- Form Factor:ATX
- Additional Feature:Intel HEDT platform
- Additional Feature:X299 chipset
- Additional Feature:ATX board design
Frequently Asked Questions
Which processors work with an X399 motherboard?
X399 motherboards use the TR4 socket and generally support first- and second-generation AMD Threadripper processors, from the 1900X family through high-core-count models such as the 2990WX. Check the exact CPU list and BIOS requirement for the specific board. Threadripper 3000 processors require the newer sTRX4 socket and an X399 board cannot support them.
Is X399 still a good platform for a workstation?
X399 remains useful for budget-conscious workstation builds that need many CPU cores, high memory bandwidth, and a large number of PCIe lanes. It can suit rendering, virtualization, content creation, and similar workloads. The platform is less appealing for a new premium build because newer sockets offer better efficiency, connectivity, and upgrade options. Buy X399 when the board and processor are priced well, not simply because the model name sounds grand.
How much RAM should an X399 build have?
32GB is a sensible minimum for general workstation use, while 64GB or more makes better sense for video production, virtual machines, 3D work, and large datasets. Install memory in matched sets across all four channels when possible. Use the motherboard manual to identify the correct DIMM slots and supported capacities. Mixing kits, capacities, or memory types can reduce stability and may prevent the system from reaching its advertised speed.
Do all X399 motherboards support overclocking?
Most X399 boards support CPU overclocking, but practical results depend on VRM quality, BIOS controls, processor cooling, and case airflow. A basic board may handle moderate tuning, while a premium board is better suited to sustained high power. Overclocking also increases heat and power consumption, so use a capable cooler and a reliable power supply. Leave adequate headroom rather than tuning every setting until the system behaves like a space heater with USB ports.
What power supply does an X399 system need?
The right capacity depends on the processor, graphics card, drives, and any overclocking. A system with a high-core-count Threadripper and one powerful graphics card commonly calls for a 750W to 850W quality PSU, while multi-GPU builds may require 1000W or more. Check for the motherboard’s 8-pin EPS connectors, not only the graphics-card power plugs. Use a reputable unit with sufficient CPU power leads, appropriate efficiency, and enough connectors for every installed component.
