AMD X399 Ultra Durable motherboard with Dual Intel GbE LAN, Triple M.2 with Thermal Guard, 120dB SNR ALC1220, Front & Rear USB 3.1 Type-C, RGB FUSION 2.0, Intel Dual Band 802.11ac WiFi+BT4.2, Base Plated & I/O Shield Armor Bandwidth ripples across every inch of the processor. The PCI Express 3.0 controller boasts 64 individual lanes, 60 of which are available for graphics cards, NVMe SSDs, and other peripherals. To put that into perspective, Ryzen has just 20 open lanes, or a third of the peripheral bandwidth inside Threadripper.

AMD's marketing on the left is set out to explain that each product in the Threadripper and X399 line will be 'fully enabled' - none of the chips will be limited in PCIe lane counts or DRAM for the sake of segmentation. AMD is happy at this point to keep segmentation limited to cores, frequency, and L3 cache. When PCIe is the game, it becomes time to play with controllers and ports to see what fits. It all starts with the underlying diagram for Threadripper and X399:

Best X399 Motherboards

Each of these potential configurations would run into several thousand dollars a piece for a full build - the M.2 drives were suggested at 512GB minimum, with the SATA drives in RAID configurations as well. AMD is making no joke; they want to be the premium platform. New Controllers for X399 As part of the launch, AMD is wanting to promote the different ways in which an X399 motherboard could be arranged depending on the workload requirements. X399 Potential Configurations AMD X399 Gaming motherboard with RGB Fusion, Digital LED strip support, Triple M.2 with Thermal Guard,120dB SNR ALC1220, Killer E2500 Gaming Network, Front & Rear USB 3.1 Gen 2 Type-C, Intel Dual Band 802.11ac WiFi+BT4.2 Although all our X399 motherboards have four PCIe x16 slots hooked up to the CPU, only the Zenith Extreme is designed for that many graphics cards. Its slots are spaced for double-wide coolers if you want to horde GPU power to leave your mark on benchmark leaderboards. On a more practical note, adding a fourth card can further accelerate compute-heavy workloads like 3D rendering and deep learning. To combat GPU sag, we include our ROG VGA Holder, which is strong enough to keep even the heaviest graphics cards horizontal.

From the chipset there are eight PCIe lanes, which AMD here has suggested reserving two for gigabit Ethernet, four for a PCIe x4 slot, one for a PCIe x1 slot, and one for a WiFi module. Alongside the PCIe lanes are eight SATA ports, six USB 2.0 ports, four USB 3.1 (5 Gbps) Type-A ports, one USB 3.1 (5 Gbps) Type-C port and two USB 3.1 (10 Gbps) ports with appropriate redrivers. In a change to what we normally see on Intel motherboards, AMD lists SPI and Audio features as coming from the CPU rather than the chipset. AMD Suggests Variants They’ve churned out a smart cooling set up to cope with different temperature ranges. There are plenty of fan headers on board and you have complete control over them via Total Fan Control. We’ve observed impressive thermals of 26 degrees C at idle and 40 degrees C under load for the VRM.

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If you’re interested in other chipsets, don’t miss our motherboard guide for Intel’s similarly extreme X299 platform. We also have guides for standard desktops, including the Intel Z270 and AMD AM4 platforms. Ryzen gets ripped