On the CES show at the beginning of this year, Intel announced a new generation of Thunderbolt 4 interface, first released on the Tiger Lake processor with 10nm+ process. Now Intel has officially released the Thunderbolt 4 standard. The rate is 40Gbps like Thunderbolt 3, but the specifications are fully enhanced, supporting dual 4K outputs and 4-port Thunderbolt 4 docking station. Thunderbolt 4 interface, which will be launched in 2020, can shake the position of USB in the peripheral connection market?
Although it does not double the performance as Thunderbolt 3 upgrades to Thunderbolt 2, Thunderbolt 4 still maintains a speed of 40Gbps, but this speed is high enough, 4-8 times that of ordinary USB 3.0/3,1 ports, 4-5GB The /s speed is sufficient even for PCIe 4.0 mobile hard drives.
The Thunderbolt 4 interface mainly improves compatibility, reliability and security, and enhances the link capability. It is compatible with USB4, DisplayPort and PCI Express (PCIe) through the USB-C physical interface, and is fully compatible with previous generation Thunderbolt and USB products.
Compared with Thunderbolt 3, the minimum PC video specifications and minimum PC data specifications have been doubled. The specific changes are as follows:
Video: Support two 4K displays or one 8K display.
Data: PCIe transfer speed up to 32Gb/sec, storage transfer speed up to 3,000MB/sec.
Supports docking stations with up to 4 Thunderbolt 4 ports.
The PC can be charged on at least one computer port.
After connecting the Thunderbolt docking station, touch the keyboard or mouse to wake the computer from sleep.
Direct memory access (DMA) protection based on Intel VT-d is required to prevent physical DMA attacks.
Thunderbolt 4 was first released in the Tiger Lake processor, which will be available soon. Intel also provided a new Thunderbolt 4 controller 8000 series later this year, including JHL8540 and JHL8340 host controllers for computer manufacturers and accessory manufacturers, The JHL8440 device controller, related products will be available later this year, including notebooks based on the Intel Athena Project.
As we all know, the available storage space of SSD is too low, which will affect the performance of PC. Therefore, the external hard disk box for Mac expansion has become the choice of many veterans.
The bandwidth of the ordinary USB 3.1 GEN2 is only 10 Gbps, which is very different from the Thunderbolt 4 on the MacBook. If PC is equipped with USB 3.1 and does not have the Thunderbolt 4 interface, the transmission speed is not enough, and the speed of PSSD will not increase. , Everything is slow
But MacBook has a Thunderbolt 4 interface, and a bandwidth of up to 40 Gbps provides a strong data throughput capacity, fast file transfer, and smooth operation in PSSD.
It can be seen that with the release of Thunderbolt 4 and USB4, it seems that moving towards unification is their ultimate mission; if Thunderbolt 4 does not have other revolutionary improvements, the merger with usb is also welcome to consumers and major manufacturers, most It's nothing more than losing the superiority of some fruit fans. Of course, there are other opinions. As I talked about before, both USB4 and Thunderbolt 4 have come out; ordinary active cable or AOC, which will be the mainstream?