What is the difference between b550 and x570? Which is better?

For the installation, after we determine the CPU, we will consider choosing a motherboard, such as AMD Ryzen R5 5600X, R7 5800X and other models. I don’t know whether to choose a B550 motherboard or directly to an X570 motherboard. So what is the difference between b550 and x570? Which is better? The following is the home of the machine to popularize the knowledge about the difference between the motherboard B550 and X570.

Comparison of the performance gap between B550 and X570

For the difference between b550 and x570, let’s take a look at the official specifications of the two, let’s take a look.

Comparison of b550 and x570 motherboard parameters
chipsetB550 motherboardX570 motherboard
CPU interfaceAM4AM4
Overclocking supportSupport overclockingSupport overclocking
Graphics card supportX16 PCIe Gen4X16 PCIe Gen4
Storage supportPCIe Gen4PCIe Gen4
Chipset busPCIe Gen3PCIe Gen4
USB 3.2 Gen2supportsupport
USB 3.1 Gen2/Gen1 quantity2/68/4
SATA quantity68
Dual graphics supportsupportsupport
Maximum number of channelstwenty fourtwenty four
Comparison of b550 and x570 motherboard parameters

Parameter comparison:

From the literal parameter point of view, the X570 motherboard is undoubtedly better. The main gap between b550 and x570 lies in the chipset bus channel. X570 is PCIe Gen4, and B550 is PCIe Gen3, but even if the motherboard chipset bus is PCIe Gen3, it will not affect External devices support PCIe Gen4, because the CPU also supports PCIe Gen4 channels. Take Ryzen’s third-generation CPU, it provides 24 PCIe Gen4 channels, and the actual number is at least 20, which means that the X570 motherboard’s own chip and CPU are both Support PCIe4.0, and B550 only relies on CPU to support PCIe4.0, so the importance of this part of the channel is not very high, and it will not have any impact on the graphics card.

In terms of the number of SATA, the X570 motherboard supports 8 SATA, while the B550 motherboard supports 6 SATA interfaces. The B550 lacks the support of two SATA interfaces, and there are 6 less in USB 3.1 Gen2, but the B550 has two more USB 3.1 Gen1 (USB3.0 vest) interface, but it does not have much impact on actual use. For example, if you want to insert a USB flash drive, the USB flash drive is USB 3.1 Gen2, and plug in more than two such USB flash drives at the same time. It is generally not implemented. SATA The interface needs to be connected to several SATA hard drives at the same time. This is rare. After all, M.2 NVMe solid state drives are more common now.

Speaking of M.2 NVME solid state drives, but because the X570 motherboard PCIe4.0 bandwidth is wide enough, if the B550 motherboard needs to be equipped with two M.2 NVMe solid state drives, once the second M.2 interface is used, it may cause only 4 SATA interfaces can be used, of which the last 2 SATA interfaces cannot be used. After all, they share bandwidth. However, the 4 SATA interfaces are certainly enough for most consumers to use, so the impact is not significant.

Comparison of the performance gap between B550 and X570

We have analyzed the parameters on the paper. In fact, the B550 also has many new features compared to the X570. After all, the B550 is nearly one year behind the X570 motherboard.

Integrated display interface

For example, the X570 motherboard is equipped with HDMI 2.0B standard, while B550 is HDMI 2.1. Although it has certain advantages, it has no effect on people with independent graphics cards.

TYPE-C interface

Most X570 motherboards do not have a TYPE-C interface, and a small number of X570 motherboards have a TYPE-C interface, and most of the B550 motherboards are equipped with a TYPE-C interface.

powered by

In the case of X570 and B550 of the same brand and series, some B550 motherboards are even more powerful than X570.

Memory support

The maximum memory support of B550 and X570 motherboards is 128G, but the frequency will be higher. For example, with AMD Ryzen third-generation CPU, B550 theoretically can reach 4600 frequency, while X570 supports 4400 frequency at most, but the impact is not big. .

South Bridge (PCH) heat dissipation

The PCH temperature of the X570 motherboard is relatively high, and a small fan is generally equipped to assist heat dissipation. With a fan, the problems of dust accumulation and noise cannot be avoided. And most of the X570 motherboard south bridge (PCH) design is unreasonable, will encounter the problem of being blocked by the discrete graphics card, especially when the graphics card is under high load and high temperature, the temperature will be higher.

Comparison of the performance gap between B550 and X570

The above is the comparison knowledge of the difference between motherboards B550 and X570 shared by the installer. On the whole, the B550 motherboard is more suitable and the price is better than X570. Unless you may need to plug in 2 M.2 solid state, you also need more than 3 SATA hard disk and other equipment, or 2 PCI-e4.0 solid state, in terms of bandwidth, it is definitely not enough. Of course, the number of USB 3.1 Gen1/Gen2 is large or small, and there is basically no impact, and both support PCI-E4 .0 graphics card, the bandwidth of the current graphics card is definitely sufficient.

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