ASUS ROG Strix B550-A Gaming

Is the ASUS ROG Strix B550-A Gaming worth buying?

The ASUS ROG Strix B550-A Gaming is worth buying at £119.99 if you are finishing an AM4 build around a Ryzen 5000 processor and want fast storage plus wired networking. It carries 12+1 power stages, two M.2 slots, six SATA ports and an Intel 2.5 Gb Ethernet port, and it fits the standard ATX mounts in a mid-tower case.

It suits a Ryzen 5 or Ryzen 7 build with a couple of NVMe drives, because the graphics slot and the storage slots all run PCIe 4.0. Take it if the PC sits near a network socket. Skip it if you want a wireless-only setup or you plan to move to a Ryzen 9000 chip later, because the AM4 socket will not take one. Just over two thousand buyers have rated this board 4.6.

What do the 12+1 power stages on the ASUS ROG Strix B550-A Gaming mean in practice?

The ASUS ROG Strix B550-A Gaming feeds its processor through 12+1 power stages, which is a count that lets a Ryzen 9 hold its boost clock through a long session rather than dropping back. Divide the £119.99 price by those thirteen stages and each one costs £9.23, so the money goes into power delivery before it goes into extras.

Expansion is where the rest of the board shows its hand: five PCIe ports, six SATA ports and two M.2 slots between them swallow a graphics card, a capture card and several drives at once. Eleven USB ports sit on the back and front, though two of them are USB 2.0. Four memory slots hold up to 128 GB of DDR4, and a single optical S/PDIF connector covers a surround receiver.

What do you need to buy alongside the ASUS ROG Strix B550-A Gaming?

The box contains one board, so the processor, the memory and the power supply are yours to add. A Ryzen 5000, 4000 G-Series or 3000 chip drops into the AM4 socket, and the same socket takes Ryzen 3, 5, 7 and 9 parts, with four DIMM slots for up to 128 GB of DDR4 running at 2666 MHz.

A monitor connects to the HDMI 2.1 output or through DisplayPort 1.2 when the processor has integrated graphics, which is what the 4000 G-Series parts bring. Otherwise a graphics card goes into the PCIe 4.0 x16 slot and you feed the board from a 24-pin power connector. An addressable Gen 2 RGB header with Aura Sync handles lighting strips, and BIOS Flashback updates the firmware from a USB stick.

Where does the ASUS ROG Strix B550-A Gaming fall short?

The graphics slot and the M.2 slots stop at PCIe 4.0, so the newest Gen5 SSDs run at half their link speed on this board. That costs you nothing in frame rates today and it will show up the day you buy the fastest drive on the shelf.

The socket takes Ryzen 5000, 4000 G-Series and 3000 processors and nothing newer, which makes the 5000 series the last upgrade this board accepts. Two of the eleven USB ports are USB 2.0, slow for a front-panel header on a modern case. Games will also never touch the 128 GB memory ceiling here.

How does the ASUS ROG Strix B550-A Gaming compare with other AM4 boards?

The ASUS ROG Strix B550-F Gaming WiFi II costs £139.99, which is £20.00 more than this board, and the difference buys a wireless radio on the same AM4 socket, with 3,685 owners behind it. Take the B550-A when the PC lives beside a network socket and the B550-F when it does not.

The MSI MPG B550 Gaming Plus asks £99.99, £20.00 less, and it runs its DDR4 up to 4,400 MHz against the 2666 MHz this board carries. Both give you PCIe 4.0 on the graphics slot and two M.2 connectors, so the MSI is the cheaper route onto the same socket, with 5,786 buyers behind it against 2,391 here.

What is the power stage count of the ASUS ROG Strix B550-A Gaming?

It has 12+1 power stages. Twelve of them feed the processor cores, which is what lets a Ryzen 9 hold its boost clock under sustained load. Divided into the £119.99 price, that is £9.23 a stage.