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USB-C vs HDMI: Which Cable Should You Use for Your Monitor?

1/30/2026 · Monitors · 8 min

USB-C vs HDMI: Which Cable Should You Use for Your Monitor?

TL;DR

  • USB-C with DisplayPort Alt Mode simplifies setup for laptops by carrying video, data, and power over one cable.
  • HDMI is ubiquitous and reliable for TVs and many monitors. Newer HDMI 2.1 models support high bandwidth for 4K 120 Hz and 8K.
  • Best picks by use case:
  • Laptop docking and minimal cables: USB-C PD with DisplayPort Alt Mode.
  • Gaming consoles and TVs: HDMI 2.1 or 2.0 depending on the console and target resolution.
  • Multi monitor workstations: DisplayPort via USB-C or native DisplayPort for daisy chaining.

Bandwidth and Features

  • HDMI 2.0: Up to 18 Gbps; good for 4K 60 Hz and many 1440p high refresh setups.
  • HDMI 2.1: Up to 48 Gbps; supports 4K 120 Hz, VRR, and other gaming features.
  • USB-C with DP Alt Mode: Bandwidth varies by implementation; often DP 1.4 capability or DisplayPort 1.2 on budget devices.
  • USB-C with Thunderbolt 3 or 4: Offers full 40 Gbps and can drive multiple high resolution displays while providing up to 100 W power delivery.

Power Delivery and Convenience

  • USB-C PD can charge laptops while sending video, reducing dongles and clutter.
  • HDMI does not carry power, so you need a separate charger for most laptops.

Compatibility and Adapters

  • Many monitors offer native USB-C input. If your monitor has only HDMI and your laptop has USB-C only, use a passive USB-C to HDMI adapter if the laptop supports Alt Mode, or an active adapter otherwise.
  • For Macs and newer Ultrabooks, USB-C that supports DisplayPort Alt Mode or Thunderbolt is the most seamless option.

Refresh Rate and Gaming Features

  • For high refresh gaming: Use the highest supported version of HDMI or DisplayPort available on both monitor and source.
  • VRR and low latency features: HDMI 2.1 and DisplayPort 1.4+ both offer VRR standards. Check your console or GPU support.

Cables and Length

  • Cheap or underspecified cables can limit resolution or refresh rate. Buy cables rated for the version you need.
  • Longer runs are more likely to require active cables or lower bandwidth to maintain signal integrity.

Devices and GPU Considerations

  • Older GPUs may not support HDMI 2.1 or DP 1.4 features; check GPU outputs and driver support.
  • Some laptops limit USB-C video bandwidth when also using high speed storage or other peripherals.

Which Should You Buy?

  • Choose USB-C if you want a single cable for video, data, and power and your devices support Alt Mode or Thunderbolt.
  • Choose HDMI if you need maximum compatibility with TVs, consoles, and many existing monitors, or if your source lacks USB-C video support.

Buying Checklist

  • Check monitor and source ports: Match the highest supported standard on both ends.
  • Power needs: Use USB-C with PD for laptop charging convenience.
  • Cable rating: HDMI 2.1 for 4K 120 Hz, certified USB-C or Thunderbolt for multi monitor setups.
  • Adapters: Prefer active adapters for reliable 4K 60 Hz or higher conversions.

Bottom Line

USB-C is the most convenient choice for modern laptops and minimal setups when Alt Mode or Thunderbolt is available. HDMI stays the practical option for consoles, TVs, and broad compatibility. Pick the cable that matches the highest supported standard on both your monitor and source, and invest in a quality cable to avoid headaches.

Found this helpful? Check our curated picks on the home page.