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Not to mention, the lightning bolt logo makes it incredibly easy to see which peripheral devices support Thunderbolt 3 technology.

If you’re in a rush or connecting devices in low light, you won’t have to fumble around with a side-specific cable.

The USB-C design features a thin, reversible connector so you don’t have to worry about plugging it incorrectly.

Why is the tech world so crazy about the Thunderbolt 3?

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While Thunderbolt 4 itself is a free spec, requiring this Intel technology to be included is an interesting move.Now that you know what a Thunderbolt port is and what it can do, let’s break it down a little further. For Thunderbolt 4, Intel requires that Virtualization for Directed I/O (VT-d), which creates a little separate memory pocket when transferring data to keep it isolated from hacking.

Protection against DMA or Direct Memory Attacks, a type of hack that taps into high-speed data connections on computers and steals data that passes through, recently highlighted in the enormous Thunderspy vulnerability - a collection of flaws found in Thunderbolt/USC connections going back almost a decade.

Wake features that allow you to immediately wake the computer at a touch of the keyboard or mouse when connected to a Thunderbolt dock (when this didn’t work with Thunderbolt 3 computer, it quickly became very annoying for frequent users and was a long-awaited fix).

Support for docks with up to four Thunderbolt 4 ports, more than Thunderbolt 3 requires.This will allow support for two 4k displays or an 8k display if necessary. Double minimum video data requirements compared to Thunderbolt 3.We already mentioned the new 32Gbps SSD connection speed, but for a device to be certified for Thunderbolt 4, it must also include key features like: 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.

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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.

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It will join other technology improvements like native Wi-Fi 6 and Bluetooth 5 support. It stated that Thunderbolt 4 will first be supported by its upcoming Tiger Lake mobile processors, slated to debut at some point in 2020. Intel officially announced Thunderbolt 4 at CES 2020. Here’s everything we know about how Thunderbolt 4 works, what to expect, and how it will compare to the competition.

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