Thunderbolt 3 vs 4
minimum specs compared between Thunderbolt versions
| thunderbolt 3 | thunderbolt 4 |
|---|---|
| 1 x 4k | 2 x 4k or 1 x 8k |
| 40 Gbps | 40 Gbps |
| optional | wake pc with key or mouse |
| half | PCEe at 32 Gbps for storage speeds up to 3,000 MBps |
| optional | Intel VT-d-based direct memory access protection |
| up to 100W of power | up to 100W of power |
| #### compatibility | |
| Thunderbolt 4 is fully compatible with prior generations of Thunderbolt. | |
| Thunderbolt 4 is fully compatible with USB4, so a USB4 device in a Thunderbolt port will work as expected. A Thunderbolt device in a USB4 port, however, may see limited functionality. |
Backlinks¶
- razor blade 15 rz09-02705w76 2018
- Thunderbolt 3 port (USB-C), see thunderbolt 3 vs 4