Thunderbolt 5 vs Thunderbolt 4: Speed Comparison and Is It Worth Upgrading?

 

Thunderbolt has become the preferred connectivity standard for modern laptops, monitors, storage devices, and docking stations. With the arrival of Thunderbolt 5, manufacturers are promising dramatically higher bandwidth, better display support, and improved performance for demanding workflows.

But specifications don't always tell the whole story.

If your daily work consists of email, web browsing, and connecting a single monitor, you may notice very little difference between Thunderbolt 4 and Thunderbolt 5. On the other hand, if you're editing large video projects, transferring massive files, or running multiple high-resolution displays, the upgrade can be much more meaningful.

In this guide, we'll compare Thunderbolt 5 vs Thunderbolt 4, explain what actually changed, and help you decide whether upgrading is worth it.

 

A Thunderbolt 5 Dock Built for Modern Workstations

Understanding the specification is one thing, having hardware that fully takes advantage of it is another.

The Anker Prime TB5 Docking Station (14-in-1, 8K, Thunderbolt 5 ) is designed for professionals who rely on multiple high-performance peripherals throughout the day. By combining Thunderbolt 5 connectivity with desktop-friendly features, it helps simplify complex workstations while delivering the bandwidth needed for demanding workloads.

• Thunderbolt 5 connectivity with up to 80Gbps bi-directional bandwidth and Bandwidth Boost up to 120Gbps for display-intensive workloads.
• 14 versatile ports, including Thunderbolt 5, USB-C, USB-A, Ethernet, SD, and audio connections.
• Up to 140W host charging, allowing many compatible laptops to stay powered through a single cable.
• Support for multiple high-resolution displays, including dual 8K monitor configurations on compatible systems.
• Built-in power supply and active cooling, reducing desktop clutter while helping maintain stable performance during sustained workloads.

Throughout this guide, we'll use this dock as a real-world example of how Thunderbolt 5 improves everyday connectivity beyond simply increasing bandwidth.

 

Thunderbolt 5 vs Thunderbolt 4: What's Changed?

Thunderbolt 4 already provides enough bandwidth for many everyday workflows. Thunderbolt 5 doesn't replace that experience, it expands what's possible for users who regularly connect multiple high-performance devices at the same time.

The biggest improvements come from increased bandwidth, higher PCIe throughput, expanded display capabilities, and greater charging potential, all capabilities that modern Thunderbolt 5 docks are designed to take advantage of.

Feature	Thunderbolt 4	Thunderbolt 5	What It Means for You
Maximum Bandwidth	40Gbps	80Gbps bi-directional, with Bandwidth Boost up to 120Gbps	More bandwidth for multiple displays, external SSDs, and other high-speed devices at the same time.
PCIe Bandwidth	32Gbps	Up to 64Gbps	Faster access to high-performance external SSDs and other PCIe devices.
External Display Support	Dual 4K or single 8K	Up to dual 8K displays on compatible systems	Better suited for creators and professionals using multiple high-resolution monitors.
Charging Capability	Up to 100W (specification)	Supports up to 240W (specification)	Greater charging headroom for powerful laptops and future high-power USB-C devices.
Best For	Everyday productivity	Professional creators, developers, and demanding workstations	Choose TB4 for everyday work; choose TB5 if your workflow pushes the limits of your current setup.

While the jump from 40Gbps to 80Gbps immediately attracts attention, the additional bandwidth is only part of the story. Thunderbolt 5 is designed to better handle situations where several high-performance devices, such as external SSDs, multiple displays, and docking stations, are all competing for bandwidth at the same time.

 

When Will You Actually Notice the Difference?

For many everyday tasks, you may not notice a significant difference between Thunderbolt 4 and Thunderbolt 5. Browsing the web, editing documents, joining video meetings, or connecting a single monitor rarely push Thunderbolt 4 anywhere near its limits.

The biggest improvements become noticeable when your workflow demands far more bandwidth than previous generations were designed to deliver.

 

Editing Large Video Projects

Professional video editing often involves working directly from high-speed external SSDs while simultaneously driving multiple high-resolution displays.

With Thunderbolt 5 providing significantly more available bandwidth and higher PCIe throughput, storage devices can maintain higher sustained performance without competing as aggressively with display traffic. That can help reduce bottlenecks when working with large 4K, 6K, or 8K media files.

 

Running Multiple High-Resolution Displays

Display requirements continue to grow as more professionals adopt dual-monitor or multi-monitor workstations.

Thunderbolt 5 provides additional bandwidth specifically designed for display-intensive workloads, allowing compatible systems to better support multiple high-resolution monitors while still leaving bandwidth available for storage devices, networking, and other peripherals.

 

Connecting Multiple High-Speed Devices at Once

Many creative and technical workflows rely on more than a laptop and a monitor.

External SSDs, SD card readers, Ethernet, USB accessories, audio interfaces, and additional displays may all be connected through the same dock. Thunderbolt 5 offers considerably more bandwidth headroom, helping these devices work together more efficiently instead of competing for limited resources.

How the Anker Thunderbolt 5 Dock Upgrades Your Workspace

Higher bandwidth is the headline feature of Thunderbolt 5, but it's rarely the only reason professionals choose to upgrade.

In a modern workstation, you're often doing several things at once, charging your laptop, connecting external SSDs, driving multiple displays, transferring files, and keeping USB accessories online. The real advantage of Thunderbolt 5 is that it provides more bandwidth headroom for all of those tasks to happen simultaneously.

The Anker Prime TB5 Docking Station (14-in-1, 8K, Thunderbolt 5 ) demonstrates how those improvements come together in a single desktop solution.

 

One Cable for Your Entire Workspace

One of the biggest benefits of a docking station is reducing cable clutter.

Instead of connecting a separate charger, monitor cable, Ethernet adapter, USB hub, and storage device every time you sit down, a single Thunderbolt cable can reconnect your entire workstation in seconds.

With 14 integrated ports, including Thunderbolt 5, USB-C, USB-A, SD, Ethernet, HDMI, DisplayPort, and audio connections, the dock centralizes your everyday peripherals while helping keep your desk cleaner and easier to manage.

 

Up to 140W Laptop Charging

A docking station should do more than connect devices, it should also keep your laptop powered throughout the workday.

The dock provides up to 140W charging through its Thunderbolt 5 upstream port, supporting the USB PD 3.1 standard for compatible laptops. The two front-facing USB-C ports also share up to 45W of output, making it easy to top up phones, earbuds, or other accessories without reaching behind your desk.

Instead of carrying a separate laptop charger or occupying another wall outlet, your entire desktop setup can be powered through a single connection.

 

Support for Up to Dual 8K Displays

 

One of the biggest advantages of Thunderbolt 5 is the additional display bandwidth available for demanding workstation setups.

The Anker Prime TB5 Docking Station (14-in-1, 8K, Thunderbolt 5 ) supports one HDMI or DisplayPort output together with two downstream Thunderbolt 5 video outputs, delivering up to a single 8K display at 60Hz or dual 8K displays at 60Hz on compatible Thunderbolt 5 Windows laptops.

Whether you're editing high-resolution video, monitoring complex timelines, or simply expanding your desktop across multiple displays, the additional bandwidth helps keep your workspace running smoothly without competing with other connected peripherals.

These are exactly the kinds of workloads Thunderbolt 5 was designed to support, moving beyond simply connecting devices to enabling high-performance desktop workstations.

 

The Speed You Need for Large Files

Thunderbolt 5 isn't just about higher bandwidth on paper, it can also make a noticeable difference when working with large files.

Using the Thunderbolt 5 port, the dock can transfer a 150GB file in as little as 25 seconds, helping reduce waiting time when moving large video projects, RAW photo libraries, or other high-capacity files.

For reliable performance, pair it with the Anker Prime Thunderbolt 5 Cable. It supports transfer speeds up to 80Gbps, helping you get the most from compatible docks, external SSDs, and laptops.

For creators and professionals who regularly handle large files, the combination of a Thunderbolt 5 dock and a properly certified cable can help reduce transfer bottlenecks and keep demanding workflows moving efficiently.

 

Built for Long Work Sessions

Creative workloads often place sustained demands on both bandwidth and power. Large file transfers, multiple displays, and continuous charging can all generate heat over extended periods.

To help maintain stable performance, the dock combines a built-in power supply with an active cooling system, allowing it to support demanding multi-device workloads without relying on an oversized external power brick.

Whether you're editing video, compiling code, or managing multiple displays throughout the day, it's designed for the kind of continuous use that modern workstations demand.

Conclusion

Thunderbolt 5 isn't simply about achieving higher benchmark numbers. It's about providing the bandwidth, charging capability, and connectivity needed to support increasingly demanding desktop workflows.

Compared with Thunderbolt 4, it delivers significantly more bandwidth, higher PCIe throughput, expanded display capabilities, and greater flexibility for professionals who rely on multiple high-performance peripherals every day.

If your current setup already includes external storage, multiple monitors, and a growing collection of USB-C accessories, upgrading to a Thunderbolt 5 dock can help simplify your workspace while giving you more room to expand in the future.

The Anker Prime TB5 Docking Station (14-in-1, 8K, Thunderbolt 5 ) brings those capabilities together in a single desktop hub, combining high-speed connectivity, one-cable laptop charging, intelligent port expansion, and a cleaner workstation built for modern creators and professionals.

 

FAQ

 

Will a Thunderbolt 5 dock work with my older Thunderbolt 4 or USB-C laptop?

Yes. Thunderbolt 5 is fully backward compatible with Thunderbolt 4, Thunderbolt 3, and USB4. If you connect the Anker Prime TB5 Docking Station (14-in-1, 8K, Thunderbolt 5 ) to an older laptop, it will still function perfectly, but the total bandwidth and display capabilities will be capped at the limits of your laptop (e.g., 40Gbps for Thunderbolt 4). This makes the dock an excellent future-proof investment, even if you plan to upgrade your laptop later.

 

How does the Thunderbolt 5 "120Gbps Bandwidth Boost" actually work?

By default, Thunderbolt 5 operates at 80Gbps bi-directionally (80Gbps sending and 80Gbps receiving). However, when you connect high-resolution or high-refresh-rate monitors that demand immense video bandwidth, the connection intelligently reallocates its data lanes. It shifts into an asymmetric mode, dedicating up to 120Gbps specifically for video output, while maintaining 40Gbps for incoming data from external SSDs and other peripherals.

 

Can I run dual monitors on a MacBook using this dock?

This depends entirely on your Mac's processor. While the Anker Prime TB5 Docking Station (14-in-1, 8K, Thunderbolt 5 ) supports dual displays (up to 8K) on compatible Windows systems, macOS handles displays differently. Base-level Apple Silicon chips (like the standard M1, M2, or M3) natively support only one external display. To run dual external displays through this dock on a Mac, you must be using a model equipped with a "Pro" or "Max" chip, and resolution limits will align with Apple's specific hardware capabilities.

 

My current laptop charger is 230W. Is the dock's 140W charging enough?

For the vast majority of workflows, including video editing, coding, and multitasking, 140W of USB PD 3.1 power is more than enough to keep your laptop charged and performing optimally. However, if you are running a high-end mobile workstation or a gaming laptop under absolute maximum CPU/GPU load, the system might consume more power than 140W. In those extreme edge cases, you may still need to plug in your laptop's original AC adapter.

 

Do I need new cables to experience Thunderbolt 5 speeds?

Yes. To unlock the full 80Gbps to 120Gbps bandwidth, you must use a certified Thunderbolt 5 cable. If you use an older Thunderbolt 4 cable to connect your laptop to the dock, the connection will automatically scale down to 40Gbps. Fortunately, the Anker Prime TB5 Docking Station includes a compatible Thunderbolt 5 cable in the box, ensuring you can maximize your performance immediately.