- Thunderbolt 4 and USB4 offer speeds of up to 40 Gbps and compatibility with previous devices.
- Thunderbolt 3 and 4 allow you to connect 4K and 8K monitors with a single cable.
- Cables are key: choosing a certified cable ensures maximum performance.
- cross compatibility: USB4 is compatible with Thunderbolt 3, but not 100% in all functions.
If you've ever wondered what the difference is between Thunderbolt 4, Thunderbolt 3, USB-C y USB 4.0, you are not the only one. These technologies have advanced significantly in recent years, offering transfer speeds ever-increasing, multi-device compatibility and the ability to connect high resolution monitors with a single cable. But are they all the same? What advantages does each have? In this article we will break down their features and compatibility so you know which is the best option for your equipment.
The Transfer speed From peripheral compatibility to compatibility, each standard has its own peculiarities. Let's take a closer look at what differences exist and how to choose the right one. suitable wire to make the most of these technologies.
Thunderbolt 4 vs Thunderbolt 3 vs USB 4.0: Key differences
Thunderbolt 4 and USB4 have been designed to improve the connectivity and the performance of modern devices. At first glance, these standards may seem similar, but there are key differences affecting their use and compatibility.
| Specifications | Thunderbolt 3 | Thunderbolt 4 | USB4 |
|---|---|---|---|
| Release year | 2015 | 2020 | 2019 |
| Maximum transfer speed | 40 Gbps | 40 Gbps | 40 Gbps (depending on implementation) |
| Backward compatibility | Thunderbolt 1 and 2 (with adapter) | Thunderbolt 3 and earlier | Thunderbolt 3 and USB 3.2 |
| Supported Monitors | Two 4K displays | Two 4K displays or one 8K | Varies by implementation |
| Power delivery | Up to 100W | Up to 100W required | Optional, up to 240W |
Compatibility between Thunderbolt 4, Thunderbolt 3 and USB4
One of the most common questions is whether these standards are compatible with each other. The answer is yes, but with nuances. Thunderbolt 4 is backward compatible with Thunderbolt 3 and earlier, but Thunderbolt 3 requires an adapter to work with older devices. On the other hand, USB4 adopts many features of Thunderbolt 3, but does not always offer the same functionality.
How important are cables?
The type of cable you use can make a big difference in the performance of your deviceNot all USB-C cables are created equal, and if you want to get the most out of Thunderbolt 4 or USB4, choosing one is a must. certificates.
- Thunderbolt 4: It is recommended to use certified cables to ensure 40 Gbps transfer and charging up to 100W.
- USB4: Although it supports Thunderbolt 3, only some cables support the maximum speeds.
- Cable length: Passive cables are usually shorter and compatible with top speeds, while assets can be longer but require specific certification.
Can I connect monitors with Thunderbolt 4 and USB4?
Thunderbolt 4 improves compatibility compared to previous versions, allowing up to two devices to be connected. 4K monitors or an 8K display with a single cable. USB4 can also support multiple displays, but its functionality depends on the the implementation from each manufacturer.
Advantages and disadvantages of each standard
Each of these standards has its strengths and limitations. Let's look at a summary of their and advantages y disadvantages:
Thunderbolt 3
- Advantages: 40Gbps speed, USB-C compatibility, allows you to connect multiple devices in a chain.
- Disadvantages: It is not mandatory to support two 4K displays, some cables and devices are not fully compatible.
Thunderbolt 4
- Advantages: Ensures compatibility with two 4K monitors, better power efficiency, higher security.
- Disadvantages: Requires hardware More advanced, it may be more expensive than Thunderbolt 3.
USB4
- Advantages: Integrates Thunderbolt 3 features, enables transfer up to 40Gbps, more universal.
- Disadvantages: Not all devices support advanced Thunderbolt features, compatibility depends on the manufacturer.
Choosing between Thunderbolt 4, Thunderbolt 3, and USB4 will depend on your specific needs. If you're looking for the best speed and guaranteed compatibility, Thunderbolt 4 is the more powerful option. If you need a more affordable alternative that still has good features, USB4 may be enough. And if you already have Thunderbolt 3 devices, continuing to use them with certified cables is still a great option.
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