![]() ![]() Thunderbolt 4 cables also support 40Gbps throughput at up to two meters in length, up from the 0.5-meter maximum of a passive Thunderbolt 3 cable. And when a Thunderbolt 4 laptop is connected to a Thunderbolt 4 dock, it must be able to wake from sleep from a connected keyboard or mouse. New thin-and-light laptops that need less than 100 watts to charge have USB Type-C charging on at least one of their Thunderbolt 4 ports. You’ll see Thunderbolt 4 docks and monitors with four Thunderbolt 4 ports, double the two ports, at most, you’ll find on Thunderbolt 3 devices. Thunderbolt 4 also leads to more capable peripherals. That added bandwidth will certainly be put to good use by anyone who regularly transfers gigantic files of high-resolution video and other large data sets from storage drives to their PC for editing. And where Thunderbolt 3 systems have to support only a 16Gbps data rate via PCI Express, Thunderbolt 4 doubles that requirement to 32Gbps. Thunderbolt 4 supports sending a video signal to two 4K displays, or to one 8K display, where Thunderbolt 3 is required to support only a single 4K display. For starters, it doubles the minimum video and data requirements of Thunderbolt 3. Underneath the surface, however, Thunderbolt 4 has a number of significant advantages. And both offer support for that 10Gbps networking. Both offer at least 15 watts and up to 100 watts of charging power. Both offer a maximum throughput of 40Gbps. ![]() Both use the USB Type-C physical connector. On the surface, the two protocols appear very similar. Thunderbolt 4 doesn’t offer any headline-grabbing improvements over Thunderbolt 3. It combined DisplayPort and PCI Express technologies in a single cable to drive high-resolution displays and high-speed data transfers with a top speed of 10Gbps. Using the same physical port, Thunderbolt 2 doubled the bandwidth to 20Gbps and added DisplayPort 1.2 support, giving the interface the ability to drive a video signal to a 4K display. The physical form of the port was a mini DisplayPort connector with a little lightning-strike icon next to it. Introduced by Intel and Apple, Thunderbolt first showed up on a MacBook Pro in 2011. To help you sort out how Thunderbolt 4 differs from Thunderbolt 3, as well as from USB4, we've prepared a little primer on the state of play.īefore we get into the specifics of the new Thunderbolt 4 protocol, let’s first back up and explain what Thunderbolt is and does, and how we got here. Thunderbolt 4 isn't a speed play it is more about minimum requirements than maximum speeds. Thunderbolt 4-equipped PCs also typically have USB4 connectivity, and sometimes, on the same actual ports, so there is bound to be some confusion.Īlso muddling up the picture is Thunderbolt 4’s lack of a single headline-grabbing feature-such as a faster top-end speed than its predecessor. This move toward open source didn’t mean, however, that Intel stopped developing its traditionally proprietary Thunderbolt specification. (And yes, the USB team dropped the space in "USB4." That's not a typo.) Indeed, the fates and directions of the two new "4" specs are intertwined. Intel opened up the Thunderbolt 3 protocol to USB's controlling consortium (the USB-IF (Opens in a new window)) for royalty-free use in the development of next-generation USB4, delivering faster speeds and interoperability to USB4 devices. The story of the latest flavor of the Thunderbolt interface-Thunderbolt 4-starts with a change in direction, however. ![]() This port looks like one of the new-style, oval USB Type-C connectors, but it does a bunch more: It can carry a video signal using the DisplayPort protocol, charge connected devices, and allow for data transfers at speeds beyond what simple USB can manage. How to Set Up Two-Factor Authenticationįor anyone who has used a Mac laptop in recent years, or a top-end Windows notebook, Thunderbolt has probably been on their radar-and perhaps had them scratching their heads regarding what it can do.How to Record the Screen on Your Windows PC or Mac.How to Convert YouTube Videos to MP3 Files. ![]() How to Save Money on Your Cell Phone Bill.How to Free Up Space on Your iPhone or iPad.How to Block Robotexts and Spam Messages. ![]()
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