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The Thunderbolt interface is undergoing a new evolution, which will provide exceptional speeds through USB-C.
The USB-C port ended up conquering until theiPhone 15 from Apple. But it is also a socket that can accommodate other interfaces, provided that the appropriate connector is used. In the case of Thunderbolt, this has been true since the third generation, released in 2015. The USB-C port was also taken up when the officialization of Thunderbolt 4in 2020.
There Thunderbolt 5 overview, on September 12, 2023, follows this lineage. Designed by Intel, it promises even more spectacular performance in the ability to massively transfer information. While Thunderbolt 3 had a maximum theoretical throughput of 40 Gbit/s, like Thunderbolt 4 (whose strengths lie elsewhere), Thunderbolt 5 promises 80 Gbit/s.
Boosted flow rates, under conditions
It’s even better than that, according to the tech giant: there is also a special mode, to boost bandwidth (bandwith boost). In this scenario, the capacity increases to 120 Gbit/s. Clearly, we triple the volume of data that we can pass each second compared to Thunderbolt 4 – a generation that is only three years old.
However, there is a subtlety. The 80 Gbit/s are promised in both directions, in reception and transmission, with a so-called bidirectional link. By increasing to 120 Gbps, Thunderbolt 5 will free up more resources for the sending stream and less for the receiving stream. The first will go down to 40 Gbit/s and the second will go up to 120 Gbit/s, as part of a “swap”.
What are the uses of such a format? Intel mentions the management of several monitors in 8K, support for a refresh rate of 540 Hz, or the control of three 4K definition screens simultaneously and at 144 Hz. In addition to video, Intel highlights gains in data transfer, PC connectivity, as well as support forUSB4 v2DisplayPort 2.1 and PCI Express 4.0.
The fateful question remains: when will we see accessories and computers that can accept Thunderbolt 5? To this question, Intel is considering a fairly close horizon: from 2024. Naturally, Thunderbolt 5 will be largely compatible with old versions of Thunderbolt and USB, in order to limit any obstacles to use.
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