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Thunderbolt 4 Defined – Speeds and Specs


There’s a brand new model of Thunderbolt on the town. Dubbed Thunderbolt 4, the ever-present however typically misunderstood interface brings some key advantages to the desk with this newest iteration. However how does it examine to earlier gen Thunderbolt 3 and even USB 3.1/3.2?

What’s new – Thunderbolt 3 vs 4

Whereas Thunderbolt 4 nonetheless has all the options of the earlier era reminiscent of flexibility in connecting shows, storage, peripherals, and charged gadgets, it provides some key enhancements over earlier gen.

  • Velocity – Although whole bandwidth remains to be the identical at 40Gbps, PCIe information necessities particularly have doubled from 16Gbps to 32Gbps. This implies exterior PCIe gadgets like storage and eGPUs will carry out significantly better with Gen 4.
  • Safety – DMA safety helps mitigate safety threats from sketchy exterior gadgets
  • Wake from Sleep – Some peripherals can now wake your PC from sleep when linked through Thunderbolt
  • Docking functionality – Although that is additionally a characteristic of Thunderbolt 3, it’s value discussing Thunderbolt’s docking and growth functionality. Due to the excessive throughput, you possibly can join a number of gadgets with an exterior dock by one single Thunderbolt port. Thunderbolt’s bi-directional functionality means this single port can deal with video out and information in concurrently with out slowing down efficiency, making Thunderbolt a particularly versatile and dynamic resolution.

Thunderbolt 4 Speed

Thunderbolt 4 vs USB C

We’ve touched base on the variations between Kind C and Thunderbolt in earlier posts. For essentially the most half, the story is similar with Gen 4, however the highlights are value repeating. Mainly, Kind C is the shape issue of the port connection and helps interface speeds anyplace from USB 2.0 all the best way to Thunderbolt 3 or 4. The speeds your particular Kind C will help depends upon the construct itself, but when it’s not particularly marked as Thunderbolt, it’s doubtless a USB normal of some sort. This implies speeds of not more than 20GBps (high bandwidth of USB 3.2 2×2).

Supported gadgets

Along with the elevated bandwidth, it’s Thunderbolt’s versatility that basically units it aside from different interfaces like USB. Just some of the gadgets you possibly can join through Thunderbolt 4 embody:

  • Screens
  • Exterior storage
  • Exterior graphics
  • Video seize gadgets
  • Peripherals
  • Networking
  • Charging gadgets

Search for Thunderbolt 4 ports changing into out there on most laptops like our Raptor T15 quickly. Desktop motherboard adoption will take extra time, and since Thunderbolt was developed by Intel, will typically not be out there on AMD gadgets.

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Josh has been with Velocity Micro since 2007 in numerous Advertising, PR, and Gross sales associated roles. Because the Director of Gross sales & Advertising, he’s liable for all Direct and Retail gross sales in addition to Advertising actions. He enjoys Seinfeld reruns, the Atlanta Braves, and Beatles songs written by John, Paul, or George. Sorry, Ringo.


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