If you're looking for the best AM4 motherboard for your current-gen AMD CPU, then chances are you're choosing between B550 and X570. These two are the most popular mainstream chipsets for AMD Ryzen 5000 series processors. However, the latter is a more high-end chipset compared to the former. Worry not, as we have all the info you need to know about the B550 vs X570 debate.
The B550 chipset was released in June 2020 as a replacement for the older B450, and it sits below the X570 in terms of price.
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The B550 chipset is designed to work with the Zen 3 Ryzen 5000 series CPUs, but since it uses the AM4 socket, it also supports Zen 2 processors (Ryzen 3000 series CPUs and Ryzen 4000 series APUs). The target audience for the B550 chipset includes content creators, high-end gamers, or users engaged in professional photography and video applications.
The X570 chipset was released in July 2019, replacing the previous generation X470 and supporting the then-upcoming Ryzen 5000 series CPUs based on the Zen 3 architecture. Additionally, it was the first chipset to support NVMe storage devices and graphics cards based on PCIe 4.0.
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CPUs with the AMD AM4 socket are compatible with the X570 chipset. So, if you had any generation of Ryzen before, you can keep using them. However, this only applies to second-gen Ryzen 2000 series CPUs and not first-gen Ryzen 1000 series CPUs.
The B550 is a newer chipset model than the X570. Does this mean that it's better than an X570 motherboard? Not necessarily. The differences between the two are so slight that you might not even notice them in day-to-day use. Here's a table that compares the B550 against the X570.
Comparison Item | B550 | X570 |
---|---|---|
Price | Lower | Higher |
CPU Graphics Card Support | x16 PCIe Gen 4 | x16 PCIe Gen 4 |
CPU Storage Support | PCIe Gen 4 | PCIe Gen 4 |
CPU USB Ports | USB 3.2 Gen2 | USB 3.2 Gen2 |
Dual Graphics Card Support | √ | √ |
Generic Lanes | PCIe Gen 3 | PCIe Gen 4 |
Number of PCIe 4.0 Lanes from Chipset |
0 |
16 |
Number of PCIe 3.0 Lanes from Chipset |
10 |
0 |
CPU Chipset Upstream Link | PCIe Gen 3 | CIe Gen 4 |
Overclocking Support | √ | √ |
Support for Ryzen 2000 Series | × | √ |
Support for Ryzen 3000 Series | √ | √ |
Support for Ryzen 5000 Series | √ | √ |
Overclocking | √ | √ |
For most PC gamers using current or previous-gen AMD CPUs, the B550 and X570 chipsets should be ample.
The key difference between the B550 and X570 chipsets, as seen above, lies in their PCIe connectivity. Unlike the B550, which only has PCIe 3.0 lanes, all of the X570's PCIe lanes are PCIe 4.0.
These are theoretical maxes that come with caveats. For example, if you use all of the SATA ports that a chipset theoretically supports, you'll have fewer PCIe lanes available. Both chipsets allow for plenty of mixing and matching, but the X570 offers the most flexibility.
Now that you're aware of the B550 vs X570 differences, it all comes down to how you intend to use your computer. Hence, the answer to this question will influence your motherboard pick. Generally, though, there's no significant performance difference between B550 and X570 chipsets – they're both excellent choices for the average user. Most of the time, that is.