Let’s avoid it in advance: Intel’s new Thunderbolt 4 connection isn’t technically faster than Thunderbolt 3, at least as far as overall throughput is concerned. (Both offer speeds of up to 40 gigabits per second.) But the company is justifying the new version number in other ways: that is, increasing the minimum requirements for systems with the new connection.
Thunderbolt 4 PCs will be able to connect to at least two 4K displays, while the previous requirement was only one. In addition, the new connection supports PCIe data rates of up to 32 Gb / s, twice as fast as before. So you can expect to see incredibly fast Thunderbolt 4 external drives in the end. And you can be sure that at least one of your Thunderbolt 4 ports will support laptop charging, which is a bit of a “do-it-yourself”