Updated: Dec 28, 2020
AMD has released the budget motherboard for their 3rd gen Ryzen processors which will be using AM4 socket and the company has also mentioned that the chipset will also support ZEN 3 architecture, therefore, making it future proof at a budget price.
The new chipset distributed motherboards include 20x PCIe 3.0 lanes dedicated to 16x graphics and of course it won't be support PCIe 4.0. There is support for a choice of 1x4 NVMe; 2 SATAs with 2 NMVes; or 2 x2 NMVe drives, all of which are Gen3.
AMD isn't offering any sort of overclocking on the A520 but considering the budget segment, it doesn't make much difference because the one who is going to buy a budget motherboard, will not be buying a high-end processor so the overclocking factor won't affect the budget users.
The chipset also supports up to 4-6 gigabits per second (Gb/s) SATA drives.
Currently, there are only a few motherboards equipped with the new chipset,
ASROCK A520M Pro4
ASUS TUF GAMING A520M-PLUS
GIGABYTE A520 AORUS Elite
MSI MAG A520M VECTOR WIFI
Currently, there are no official announcements about the core speeds and it's officially mentioned that it won't be supporting Ryzen 5 3400G and Ryzen 3 3200G