Best dual CPU motherboards in 2023

Dual CPU motherboards sound tempting. A motherboard with two CPU sockets should theoretically be twice as powerful as a single CPU motherboard, right? Not just that, but double the gaming performance too, right? Well, the reality of the matter is a bit more complex and, we’ll explain why.

First of all, we’ll recommend the best dual CPU motherboards. Next, we’ll get a look at the basics of dual CPU motherboards: what they are used for, what benefits they provide, and their usual set of features. After that, we’ll explore their potential as the base for gaming machines. We’ll also see why there aren’t Ryzen and Threadripper motherboards with dual CPU support.

Before we present our first pick, we would like to recommend a few articles that could interest you. First of all, our list of the best NAS motherboards includes a few server-grade motherboards that you might find interesting. Next, our guide for the best server motherboards for home and gaming includes a couple of dual-CPU options. Finally, you can read our list of the best dual system cases if you’re interested in building two PCs inside the same case.

ASUS WS C621E: Best dual CPU motherboard for Intel CPUs

Memory

12× DDR4 DIMM
max. 1536 GB

Storage

1× M.2
4× U.2
10× SATA III

Expansion Slots

7× PCIe x16

Wi-Fi

No

We’ve narrowed down the best dual CPU board to two choices. They both can be used for a multitude of purposes. Hook them up with a couple of pre-owned processors and get rolling. By creating two virtual machines, you can get both a solid server and a workstation that can run any game you want. All that neatly packed inside one PC case.

Let’s start with the LGA 3647 Socket P board from ASUS. This is the best dual CPU motherboard for Intel CPUs. If you own a couple of older Xeons that are compatible with this mobo, this is the best dual CPU motherboard you can get.

The ASUS WS C621E board has it all. Two CPU sockets, 10 SATA connectors, 1 M.2 Port. It supports up to 4-way SLI and Crossfire. You can use multiple GPUs for productivity while also experiencing excellent gaming performance. Just make sure to use single GPU mode when gaming. The board supports gigabit Ethernet with 2x gigabit Ethernet ports. Perfect for a home server.

The I/O panel has everything you might need, and there’s also support for up to 1.5 TB of memory. The board can house Xeon Socket P CPUs. Your best bet is to visit eBay and get a couple of used ones. They are relatively cheap (at least compared to new Xeon CPUs). You can get a dual 16-core system for less than the price of one new Threadripper processor.

SuperMicro H11DSi-NT: Best dual CPU motherboard for AMD CPUs

The SuperMicro H11DSi-NT is the best dual CPU motherboard for AMD CPUs. This model supports AMD EPYC Processors. The board has only two PCIex16 slots, and it doesn’t support SLI or Crossfire.

Unless you require multiple professional GPUs, you’ll be fine. One powerful GPU is all you need for an excellent gaming experience. Just remember to get a standalone audio card since you won’t find any audio chip here.

The board has a ton of features. It comes with one classic M.2 port and two OCuLink headers for additional NVMe drives. You also get 10 SATA ports. The max amount of memory supported is 2TB, and that’s more than enough for any kind of task.

Go to eBay, get a couple of first-gen EPYC processors (the selection isn’t as rich as with Xeon CPUs). Then build yourself a server and a workstation that can run games, all on one board.