USB‑C vs Thunderbolt – What’s the Difference?
USB‑C is the port shape. Thunderbolt is a technology that can run over USB‑C ports on some laptops. Here’s how to tell what yours supports—and what cables/docks to buy.
- ⚡ Speed: USB 3.x vs USB4 vs Thunderbolt 3/4
- 🔌 Power: USB‑PD wattage and safe charging
- 🖥️ Displays: 4K/6K/8K support and refresh rates
- 🔗 Cables/docks: which ones to choose
Also Read:
1) Port & Cable Basics
- USB‑C: Reversible connector; can carry data, video (Alt‑Mode), and power via USB‑PD.
- Thunderbolt over USB‑C: Adds higher bandwidth, better display support, PCIe for fast SSDs/docks.
- Labeling: Look for a lightning bolt icon for Thunderbolt; otherwise assume USB‑C only.
2) Speeds & Protocols (Typical)
- USB 3.2 Gen 1: up to 5Gbps; Gen 2: 10Gbps; Gen 2x2: 20Gbps (limited support).
- USB4 (varies): 20–40Gbps depending on implementation.
- Thunderbolt 3/4: up to 40Gbps, consistent features and daisy chaining.
3) Displays & Power
- USB‑C Alt‑Mode: often 4K60 via hubs; depends on laptop/GPU support.
- Thunderbolt: multi‑display at higher resolutions/refresh; better for creators.
- USB‑PD: check charger wattage (e.g., 65W, 100W, 140W) to match laptop needs.
Recommended Cables & Docks
USB‑C to USB‑C (100W)
Safe PD charging and fast data—works across phones, tablets, and laptops.
Buy Now
Thunderbolt 4 Dock
Dual display, SSD speeds, and power via a single cable—pro desk setup.
Check Price
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💡 Disclosure: Some links may be affiliate links. Check your laptop’s specs (USB4/Thunderbolt icons) before buying cables/docks.
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