Thunderbolt is a standard jam-packed with features, from enabling external graphics cards to providing Ethernet network access, many designed to continue differentiating Thunderbolt from the USB standard. PCIe connections are used on the latest SSDs, which means common computer tasks involving data retrieval and storage could appear noticeably sped up. That’s because one of the updates Intel has made is requiring Thunderbolt 4 to support PCIe bandwidth speeds of 32Gbps, twice what Thunderbolt 3 supports. However, you may still see a performance boost on your devices. Thunderbolt 4 will operate at a maximum throughput of 40Gbps. Intel later clarified that it would be four times faster than USB 3.2 Gen 2, which has a maximum speed of 10Gbps. ![]() Thunderbolt 4 was first expected to improve upon that, with Intel claiming that it would be four times faster than USB, prompting many to expect an 80Gbps bandwidth for Thunderbolt 4. In contrast, USB 3.2 2×2, the fastest specification of USB ports at the time of writing, is 20Gbps. That’s somewhat of a surprise, as speed has been one of the major advantages of Thunderbolt 3, with its maximum capable throughput of 40 Gbps. PerformanceĪs far as speed goes, Thunderbolt 4 will not be faster than Thunderbolt 3. The first Thunderbolt 4 connections will appear on select laptops toward the end of 2020, including laptops from Intel’s Project Athena, a program made to encourage more innovative laptop designs that fit the modern lifestyle. 2021 will see a much broader array of choices for potential buyers interested in Thunderbolt 4’s capabilities. The series will begin with JHL8540 and JHL8340 host controllers for computers, and the JHL8440 device controller for accessories. While precise release dates haven’t been announced yet, Intel has released developer kits and certification testing for manufacturers and has announced the Thunderbseries controller, which will work with all current Thunderbolt 3 PCs and similar devices. Intel Raptor Lake CPUs: Everything we know about the 13th-gen processors What is Wi-Fi 7: Everything you need to know about 802.11be ![]() ![]() MacBook Pro battery replacement: everything you need to know
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