Top choice for X570 with AMD Ryzen 9 3900X is the latest motherboard offering robust performance and features.
Top choice for X570 with AMD Ryzen 9 3900X is the latest motherboard offering robust performance and features.
Hello, I'm searching for a motherboard within a $200 budget that fits your AMD Ryzen 9 3900X and x570 chipset needs. You're looking for PCIe Gen 4 support, an M.2 slot, and something around $300 or less. The MSI MAG X570 TOMAHAWK WIFI was your main interest but it's a bit over your target price. Any suggestions or advice would be greatly appreciated!
They both look promising choices. My main worry is about the chip configurations. I think the X570 supports PCIe Gen4 on all its lanes, while the B550 only has two and the others are Gen3. In short, whether the extra PCIe Gen4 support justifies it depends on your needs. Between the two boards, the price gap is just about ten dollars.
The Gigabyte x570 Pro Wifi offers great value for its price. It features solid VRMs and operates quietly.
The distinction lies in the chipset support: B550 supports PCI-E 3.0 lanes, whereas x570 supports PCI-E 4.0 lanes. Both feature PCI-E 4.0 from the CPU to the video card slot—either a single x16 lane or two x8 lanes—and connect to the first M.2 connector. The variation comes from additional M.2 slots and extra PCI-E 1 or 4 lanes linked to the chipset. B550 models operate at PCI-E 3.0 speeds. The x570 chipset also requires a fan, but only when connected to PCI-E 4.0 devices via the chipset or extra M.2 ports. If the 4.0 lane is idle in the chipset and all chipset-connected devices run on PCI-E 3.0, the chipset won’t generate heat and you can safely disable it or lower its speed—unless the manufacturer used a very small heatsink. I recommend B550 boards since they often include ALC1200/ALC1220 audio, 2.5G Ethernet, and typically better VRM than x570 models. For x570, choose a board with at least four green checkmarks (v1.5 or v1.4) as shown in the provided link. Technically, you only need three green checkmarks for the selected CPU, but investing in an x570 is justified if you’re willing to spend more.
The ASUS TUF TUF X570 offers strong VRMs at a reasonable cost, typically around 175 watts. It should easily run the 3900X processor.
Well b550 provides DMI 4 (PCIe 4.0) connections for components such as the GPU, M.2 slots, etc., assuming the actual device supports it, and it delivers DMI 3 for the CPU. This means reduced data transfer speed with the CPU, which can lead to lower IO performance overall. However, in most cases it should still suffice. The board is quite solid, so you should definitely think about getting one. For the X570, the TFU is quite decent. The X570-P B550 Tomahawk Magnum Aorus Pro Strix are excellent options.