AMD PCIe 4.0 new B550 chipset revealed

At the same time that the 7nm process and Zen2 architecture for the Ruilong 3 3100 and Ruilong 3 3300X were released, AMD finally released the new B550 chipset


Introducing the new B550 chipset


The biggest highlight of the B550 chipset motherboard is the first that brought PCIe 4.0 to the market of $141, although it does not support it, it can release PCIe 4.0 of the third generation Ruilong to support PCIe 4.0 video cards and SSDs.

Of course, this is not the whole B550, its modernization is almost universal, especially the dual-graphics technology that can only be seen on the flagship X470 and X570 motherboards.

AMD PCIe 4.0 new  B550 chipset revealed

This is a comparison chart between the specifications of B550, the previous mainstream B450, and the contemporary flagship X570. The magnitude of the improvement is clearly visible. With the three-generation Ruilong processor, the CPU graphics channel is upgraded from PCIe 3.0 x16 to PCIe 4.0 x16, the CPU SSD hard disk channel is upgraded from PCIe 3.0 x4 to PCIe 4.0 x4, and the CPU USB interface is upgraded from USB 3.0 5Gbps to USB 3.1 10Gbps.



The PCIe B550's own channel specification also moved from the old PCIe 2.0 to PCIe 3.0, but the channel with the Ruilong processor is still supported on PCIe 3.0. These two places are also almost the only differences from the X570 and are usually used. The impact on performance is not particularly obvious, and the cost is significantly reduced.

AMD PCIe 4.0 new  B550 chipset revealed

The detailed architectural diagram of the B550 chipset with three generations of Ruilong is a bit complicated, especially how to configure the PCIe channel is largely dependent on the design of the motherboard manufacturer. It’s good to understand this in general.

First, let's look at the three generations of Ruilong on the left: it supports 24 PCIe 4.0 channels, 16 of which are reserved for discrete graphics cards and 4 for connecting to the chipset, except that when paired with the X570 it uses PCIe 4.0 x4 when paired with the B550 Take PCIe 3.0 x4.

There are also 4 storage options that can be flexibly configured by the motherboard manufacturer. You can choose one x4 NVMe set, or two 6 Gb / s SATA plus one x2 NVMe set, or two x2 NVMe sets.

Of course, there are 4 USB 3.1 10 Gb / s interfaces.

Looking at the B550 on the right, it supports 14 PCIe 3.0, 4 of which are reserved for connecting to the processor, 4 for 4 SATA 6 Gb / s, 4 for connecting peripheral devices such as network cards and sound cards, and 2 additional configurations for 2 PCIe 3.0 or 2 SATA 6 Gb / s, the number of SATA 6 Gb / s and NVMe M.2 interfaces installed on the motherboard can also be configured by the manufacturer, in any case, this is enough to interact with the processor.

The USB interface supports 2 USB 3.1 10 Gb / s, 2 USB 3.0 5 Gb / s, 6 USB 2.0 480 Mb / s, and 6 USB 3.1 10 Gbit / s.

AMD PCIe 4.0 new  B550 chipset revealed


As far as compatibility is concerned, in recent years the AMD Ryzen platform has been the interface of the AM4 package, but this does not mean that any processor can be used with any motherboard. Consider the limitations of the real situation.


The B550 motherboard only supports third-generation Ruilong and the future Zen 3 architecture. Besides two APUs with Zen + Ruilong 5 3400G and Ruilong 3 2200G architecture, it does not support second-generation and second-generation Ruilong CPUs / APUs. ,

The AMD B550 motherboard will be available on June 16, and all Asus, ASRock, Gigabyte, MSI, Biostar and other major brands are ready, and in total there will be more than 60 of them.

AMD PCIe 4.0 new  B550 chipset revealed



Image Courtesy by KKJ.CN

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