Thunderbolt 4 is the latest high-speed connectivity standard, delivering exceptional data transfer performance. USB-C, on the other hand, is widely known for its universal compatibility across devices. Since both use the same port, many wonder: Thunderbolt 4 cable vs USB C: what’s the difference? Can you use a Thunderbolt cable for USB C devices?
If you are having the same questions, this guide is here to help. We will break down the key differences between Thunderbolt 4 and USB-C, explain compatibility, and help you pick the right cable for your needs.
What is Thunderbolt 4?
Thunderbolt 4 is Intel’s latest high-speed connectivity standard, using the familiar USB-C port to deliver exceptional versatility. It supports data transfer speeds of up to 40 Gbps, enabling seamless performance for demanding tasks like transferring large files, editing 4K/8K videos, or streaming ultra-high-definition displays without lag.
With support for dual 4K displays or a single 8K display, Thunderbolt 4 is best for creative professionals, multitaskers, and gamers who require exceptional visual output. It also provides up to 240W of power delivery, which allows users to charge laptops and other high-powered devices directly through the cable.
Additionally, Thunderbolt 4 includes Intel’s Direct Memory Access (DMA) protection, adding hardware-based security to guard against physical threats such as malicious peripheral devices.
What is USB‑C?
Unlike Thunderbolt 4, USB-C is not a technology standard but a universal, reversible connector designed to replace older ports like USB-A and Micro-USB. Through a single compact port, it can support data transfer, video output, and power delivery, making it the default choice for modern smartphones, laptops, and accessories.
The actual performance of a USB-C cable depends on the supported standard, from USB 2.0 (480 Mbps) to USB 3.2 or USB 4 (up to 40 Gbps). USB-C can also deliver up to 240W of power, allowing it to charge laptops and other high-powered devices efficiently.
For users who need maximum charging capability and durability, the Anker USB-C to USB-C Cable (3 ft / 6 ft, 240W, Upcycled-Braided) is a strong option. Supporting up to 240W power delivery, it can charge a 16-inch MacBook Pro (2023) to 50% in 28 minutes, or an iPhone 15 Pro to 50% in 26 minutes. The eco-friendly braided design offers both flexibility and strength and comes in two practical lengths, 3 ft and 6 ft, for different setups.
Thunderbolt 4 vs USB‑C: What’s the Difference
Thunderbolt 4 and USB-C use the same connector shape, which often causes confusion, but they are not the same. Thunderbolt 4 is a stricter, higher-performance standard that runs over the USB-C connector, while USB-C can refer to a wide range of capabilities depending on the underlying USB version. Here’s how they differ in ways that matter for real-world use:
Connector Type
Both Thunderbolt 4 and USB-C use the same small, reversible USB-C connector, but they are not interchangeable in capability. USB-C refers only to the shape of the port, not its features.
Thunderbolt 4 always uses USB-C, but not every USB-C port supports Thunderbolt 4, USB4, or advanced features like high-speed data or video output.
Speed and Performance
Thunderbolt 4 provides a guaranteed data transfer speed of 40 Gbps.
USB-C, depending on the underlying protocol, could support USB 2.0 (480 Mbps), USB 3.2 Gen 1 (5 Gbps), Gen 2 (10 Gbps), or even USB4, which can reach up to 40 Gbps, matching Thunderbolt 4 in raw speed.
Display Support
Thunderbolt 4 guarantees support for two 4K displays or one 8K display, which is ideal for professional and creative workflows.
USB-C ports may support video output through DisplayPort Alternate Mode, but capabilities depend on the device and could be limited to a single 4K display or none at all.
Daisy Chaining
Thunderbolt 4 supports daisy chaining, which allows you to connect multiple Thunderbolt devices (like monitors, drives, and docks) in a single chain from one port. This helps reduce cable clutter and expand functionality.
Standard USB-C and USB4 do not support daisy chaining of devices in the same way—each device typically requires its own port or a hub.
Compatibility
Thunderbolt 4 is fully backward-compatible with Thunderbolt 3, USB4, and all USB-C devices, making it extremely versatile.
USB-C ports, however, are inconsistent. Some may support USB 2.0 only, while others handle high-speed data, charging, or display. USB4 was designed to unify USB-C capabilities and is a big step forward, compatible with existing USB 3.2, USB 2.0, and Thunderbolt 3 hosts. It also maintains backward compatibility with all previous versions of USB.
Cable Length & Performance
Thunderbolt 4 supports full 40 Gbps data transfer over cables up to 2 meters, ensuring consistent high performance across longer distances.
In contrast, USB-C often requires shorter cables, typically under 1 meter, for optimal speed, with longer cables potentially causing reduced performance unless specifically engineered or using active cable designs.
How to Choose the Right Cable for Your Needs
As you can see, the USB C Thunderbolt cable difference can make a big impact on performance. To pick the right cables for your setup, consider these factors:
1. Identify Your Device’s Requirements
Check what standards your device supports. The port may look like USB-C, but it could be USB 2.0, USB4, or Thunderbolt 4. Refer to the specifications on the device or the manufacturer's site. Using a higher-spec cable with a lower-spec port won't improve performance.
2. Know Your Purpose
If you primarily need a cable for charging smartphones, tablets, or casual data syncing, basic USB-C cables with proper Power Delivery support are enough. However, for professional video editing, gaming setups, or connecting multiple monitors, invest in a Thunderbolt 4 cable to ensure stable, high bandwidth, and low latency.
3. Check Speed and Power Ratings
Verify the cable's specifications. Power delivery can range from 60W to 240W. Data speeds vary significantly, ranging from 480 Mbps for USB 2.0 to 10 Gbps for USB 3.2 and 40 Gbps for Thunderbolt 4. Using a cable that doesn’t match your device’s capabilities limits overall performance.
4. Consider Cable Length
Use shorter cables for faster charging and stable data speeds. If your setup requires longer cables (up to 2 meters or more), Thunderbolt 4 or high-quality USB-C cables are better to maintain full performance. Regular USB-C cables might reduce speeds and cause unstable connections when extended beyond 1 meter.
5. Look for Certification
Prioritize certified cables. Thunderbolt 4 cables display the lightning-bolt icon with the number 4, while quality USB-C cables are certified by USB-IF. Certification ensures that cables meet performance and safety standards. Avoid generic cables that lack clear labeling or documentation of supported features.
Conclusion
Choosing between a Thunderbolt 4 cable vs USB C depends on your device’s capabilities and the tasks you need to perform. Thunderbolt 4 ensures top-tier speed, display support, and daisy chaining, while USB-C offers broad compatibility with varying performance levels. Matching cable specifications to your requirements guarantees consistent charging, data transfer, and video output. Investing in well-built, certified cables not only safeguards your devices but also optimizes performance. For reliability and durability, Anker offers quality options trusted by professionals and everyday users alike. Just check it out!
FAQs
Are Thunderbolt and USB C cables the same??
No, they are not the same. Even though both use the USB-C connector, they serve different purposes. USB-C is a universal port that supports a variety of standards with varying speeds and capabilities. Thunderbolt 4, on the other hand, is a specific high-performance protocol that guarantees fast data transfer, advanced display support, and consistent power delivery.
Can I use a normal USB-C cable for Thunderbolt 4?
Yes. You can use a standard USB-C cable with a Thunderbolt 4 port, and it will work for basic charging and data transfer. However, most regular USB-C cables are not designed to handle the full capabilities of Thunderbolt 4, such as 40Gbps data speeds, dual 4K video output, or high-wattage power delivery.
Are Thunderbolt cables better than USB-C?
Yes. Thunderbolt cables are generally superior to standard USB-C cables. Thunderbolt cables offer faster speeds and support demanding tasks like dual 4K displays and external GPUs. But for everyday charging and general use, standard USB-C cables are more affordable and widely compatible.
Does Thunderbolt 4 need a special cable?
It depends. If you want to fully utilize Thunderbolt 4’s speed and features, a certified Thunderbolt 4 cable is needed. Regular USB-C cables also work, but they just don’t deliver the full features of Thunderbolt 4.
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