On the three major PC platforms – Intel, AMD and Apple, not to mention performance and system experience, the Intel and Apple platform PCs have an advantage that the AMD platform did not have before, and that is USB4.The first two have long used USB4 or better Thunderbolt 3/4 interface, AMD did not support USB4 interface until Ryzen 6000 series laptops.
AMD supports the high-end version of the standard, the minimum speed of USB4 certification is 20Gbps, AMD is 40Gbps, and the supported image is also DP 1.4a HBR3, which is compatible with Thunderbolt 3 in the standard, even not losing Thunderbolt 4, some of the latter are optional The requirements are made mandatory by AMD’s USB4, such as booting from PCIe mode, etc.
Don’t underestimate this interface, the experience improvement brought by it is not small. The foreign media used the ASUS ZenBook S 13 OLED for the experience. It is equipped with a Ryzen 7 6800U and has a USB4 interface.
The foreign media’s evaluation of the AMD platform’s USB4 interface is: Amazing.
What’s so good about the USB4 interface? First of all, the speed is greatly improved. Using the SanDisk G-Drive Pro mobile hard drive to test, the speed reached 2.8GB/s, which is the same as the speed on the Thunderbolt 3/4 interface and about three times that of the general USB 10Gbps.
The second advantage is that the 40Gbps bandwidth of the USB4 interface can be used to run the eGPU, that is, an external graphics card. The GTX 1070 Ti was used for testing, as shown below:
In general, after the Ryzen 6000 APU supports the USB4 interface, AMD platform notebooks are expected to usher in a wave of experience upgrades, with extremely fast speed and good scalability, and can achieve functions that the 10Gbps speed USB interface cannot.
However, it should be pointed out that although AMD supports the USB4 interface, it is still up to the notebook manufacturers to decide whether to use USB4 or not. Unfortunately, the manufacturers seem not to be enthusiastic about this. At present, the AMD platform supports USB4 is still a minority, after all will increase the cost additionally.
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