Intel Introduces Thunderbolt 4: Same Speed but more certification requirements

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Intel releases the details about the new Thunderbolt 4 specification, the next-generation cable connectivity solution, allows external display and peripherals to connect to a computer. The new Thunderbolt 4 standard increases minimum performance requirements and expand capabilities and USB4 specification compliance. Thunderbolt 4 now supports up to two 4K displays and one 8K display. The maximum bandwidth Thunderbolt 4 remains the same as the Thunderbolt 3.

Thunderbolt 4 certification requirements:

  • Double the minimum video and data requirements of Thunderbolt 3
  • Video: Support for two 4K displays or one 8K display
  • Data: PCIe at 32 Gbps for storage speeds up to 3,000 MBps
  • Support for docks with up to four Thunderbolt 4 ports
  • PC charging on at least one computer port (for laptops that consume 100W or less)
  • Wake your computer from sleep by touching the keyboard or mouse when connected to a Thunderbolt dock
  • Required direct memory access (DMA) protection (such as Intel VT-d and others) that helps prevent physical DMA attacks
  • Availability of longer Thunderbolt cables (both passive and active)

What new Thunderbolt 4 standard mean for Apple and Mac computers.

Thunderbolt 4 uses a USB-C connector same as the Thunderbolt 3 to deliver data transfer, power delivery, and external peripherals. Thunderbolt 4 also supports 40Gb/s bandwidth which is the same as Thunderbolt 3. Thunderbolt 4 will support PCIe data transfer speed up to 32Gb/s instead of 16Gb/s on Thunderbolt 3, and the USB 3.2 data transfer speed can support up to 10Gb/s. The new Thunderbolt 4 enable docks supports up to four Thunderbolt 4 ports, while the Thunderbolt 3 can only support up to two Thunderbolt 3 ports. Thunderbolt 4 cable will be compatible with Thunderbolt 3 cables and accessories.

Thunderbolt 4 uses a USB-C connector same as the Thunderbolt 3 to deliver data transfer, power delivery, and external peripherals. Thunderbolt 4 also supports 40Gb/s bandwidth which is the same as Thunderbolt 3. Thunderbolt 4 will support PCIe data transfer speed up to 32Gb/s instead of 16Gb/s on Thunderbolt 3, and the USB 3.2 data transfer speed can support up to 10Gb/s. The new Thunderbolt 4 enable docks supports up to four Thunderbolt 4 ports, while the Thunderbolt 3 can only support up to two Thunderbolt 3 ports. Thunderbolt 4 cable will be compatible with Thunderbolt 3 cables and accessories.

Thunderbolt 4 Comparison Cart
Image vis Intel: Thunderbolt 4 Comparison Cart

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Intel Introduces Thunderbolt 4: Same Speed but more certification requirementsIntel Introduces Thunderbolt 4: Same Speed but more certification requirements
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