The Best B550 motherboard for your next AMD build might not be a B550 board at all. AMD’s B550 chipset arrived with anticipation of PCIe 4.0 support at low prices, given the high cost of most X570 boards and the appealingly low price of many previous-generation B450 motherboards. But now that we’re well more than a year out from the launch of B550, we know that AMD’s more mainstream AM4 platform delivers on at least one of those promises--PCIe 4.0. While there’s less bandwidth for multiple next-generation high-speed storage and graphics card setups with B550 compared to X570, it does deliver enough PCIe 4.0 lanes for the typical setup of a single speedy boot drive and graphics card. And overall, B550 prices are lower than their X570 counterparts. But many B550 motherboards -- particularly the high-end models -- surpass the price of many lower-end X570 motherboards.