Intel details Thunderbolt 4: Required DMA protection, longer cables, and more
Credit:
Wikipedia
Intel has outlined what to expect from the new Thunderbolt 4 standard, which is expected to start appearing in consumer devices later this year.
While it won't offer an increase over the 40GB/s that Thunderbolt 3 does, Thunderbolt 4 has steeper minimum requirements than Thunderbolt 3 for devices to claim certification—and that makes some new features and perks standard.
These are the specifications for Thunderbolt 4, according to Intel:
- 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.
- Accessories with four Thunderbolt 4 ports
- Universal 40GB/s cables up to 2 meters in length
- Required PC charging on at least one computer port.
- Required PC wake from sleep when computer is connected to a Thunderbolt dock
- Required Intel VT-d-based direct memory access (DMA) protection
- USB4 specification compliant