USB-C vs DisplayPort for Gaming Monitors

What DisplayPort offers for gaming

DisplayPort is the connection designed for computer displays. It carries video and audio in one cable and is the standard port on most gaming monitors and graphics cards. For a desktop gaming PC, DisplayPort is the connection to use when you want the full capability of your monitor, especially at high refresh rates. The latest DisplayPort versions increase the bandwidth available for video, which lets a monitor run at a higher resolution and refresh rate at the same time.

DisplayPort also supports variable refresh rate technology, which lets the monitor match its refresh rate to the frames the graphics card sends. This reduces screen tearing without adding input lag, a key feature for competitive play. For a serious gamer, DisplayPort is the connection that unlocks the monitor's full potential. The best gaming monitors rely on DisplayPort as the primary input for this reason, and the best 1440p gaming monitors and best 4K gaming monitors list DisplayPort as the recommended connection for full performance.

To understand which DisplayPort version your monitor and graphics card support, check the specifications. Higher versions provide more bandwidth, which matters for high refresh rates at 1440p or 4K. For a detailed explanation of DisplayPort versions and what is enough for gaming, see the DisplayPort version guide.

What USB-C offers for gaming

USB-C is a versatile connector that can carry data, video, and power in one cable. On a gaming monitor, a USB-C port can act as a video input when it supports DisplayPort Alt Mode. This means the USB-C port can carry a DisplayPort signal, so you can connect a laptop or a desktop with a USB-C output directly to the monitor. The advantage of USB-C is convenience: one cable can connect your PC to the monitor, deliver video, and charge a laptop at the same time.

For a desktop gaming PC, USB-C is less common as the primary video output, but it is useful for connecting a second monitor or a laptop to your setup. Many monitors include both DisplayPort and USB-C inputs, giving you flexibility. The bandwidth of a USB-C connection depends on the USB version and whether the port supports DisplayPort Alt Mode. USB4 and Thunderbolt connections can carry high-bandwidth video, but not all USB-C ports on a monitor or PC support video output.

If you are connecting a laptop for occasional gaming, a USB-C port with DisplayPort Alt Mode can simplify your desk setup. The USB types and versions guide explains the different USB-C capabilities in more detail. For a permanent desktop gaming station, DisplayPort remains the more straightforward choice.

Bandwidth and features compared

When comparing USB-C and DisplayPort for a gaming monitor, the key difference is bandwidth and feature support. DisplayPort is built for video and offers the highest bandwidth for a given version. USB-C can match that bandwidth when it uses DisplayPort Alt Mode, but the actual speed depends on the USB version and the implementation. For high refresh rate gaming, DisplayPort is the safer choice because it is the connection that monitor manufacturers list for the maximum refresh rate and resolution of the panel.

Both connections can support variable refresh rate, but DisplayPort is the standard for this feature on gaming monitors. If you want to use G-Sync or FreeSync, DisplayPort is the connection to use. USB-C with DisplayPort Alt Mode can also carry variable refresh rate, but support depends on the monitor and the graphics card. In practice for a desktop, DisplayPort is the connection that gives you the most predictable performance.

Resolution and refresh rate go hand in hand. At 1440p, many monitors run at 144Hz or higher, and DisplayPort 1.4 is commonly used. At 4K, high refresh rates need even more bandwidth, so a newer DisplayPort version is required. The same is true for USB-C: a USB-C port with DisplayPort 1.4 or 2.1 support is needed for those speeds. For guidance on choosing a monitor that matches your resolution, see the 1440p vs 4K gaming monitor guide.

Practical tips for connecting your gaming monitor

Before you connect a monitor, check the ports on both the graphics card and the monitor. The graphics card may have several DisplayPort outputs and one USB-C output. The monitor may have one or more DisplayPort inputs and a USB-C input. Use the connection that matches the highest refresh rate you want. For a typical gaming PC, DisplayPort is the primary connection, and USB-C is for a second screen or a laptop.

Many monitors include both DisplayPort and USB-C ports. The USB-C port often supports DisplayPort Alt Mode, so you can use it as a video input. Some monitors also use the USB-C port to charge a connected laptop, which is handy if you use a laptop as a secondary gaming machine. On a desktop, this is less important, but it can simplify a multi-monitor setup.

To get the best experience, set the monitor's refresh rate in the operating system after connecting. The connection must support the refresh rate you select. DisplayPort 1.4 and later versions are used for high refresh rates at 1440p and 4K. USB-C with DisplayPort Alt Mode can also handle these speeds if the port is rated for the same bandwidth. When in doubt, use DisplayPort for your primary gaming monitor.

For a multi-monitor setup, you can combine DisplayPort and USB-C. Use DisplayPort for the main gaming monitor and USB-C for a secondary monitor or a laptop. This approach keeps the highest-performance connection for your primary display while using the convenience of USB-C elsewhere. The multi-monitor setup guide offers more advice on arranging multiple displays.

Which connection to pick for your play

For a desktop gaming PC, use DisplayPort for your main monitor. It is the connection that gives you the full refresh rate and variable refresh rate support. If your monitor has a high refresh rate, like 144Hz or 240Hz, DisplayPort is the connection to use. The best 240Hz gaming monitors and best 1440p gaming monitors are built around DisplayPort as the primary input.

Use USB-C when you need a single cable for video and data, or when you connect a laptop to your monitor. USB-C is also useful for a second monitor if your graphics card has a USB-C output. For most gaming setups, DisplayPort is the primary connection, and USB-C is a secondary option. Once you have the right connection, you can adjust the monitor settings to match your preference, such as setting the refresh rate correctly. The how to set monitor refresh rate guide walks through that process.

When you choose a gaming monitor, check the ports it has. Look for a DisplayPort input for the best gaming performance, and a USB-C port if you want the convenience of a single cable. The monitor specifications will state the maximum refresh rate and resolution for each input, so you can verify that the connection supports your intended use.

What to pick for your play

Questions

Is USB-C better than DisplayPort for gaming?

For gaming, DisplayPort is generally better because it is designed for video and supports high refresh rates and variable refresh rate. USB-C can carry a DisplayPort signal, but its bandwidth depends on the USB version and Alt Mode support.

Can USB-C carry a DisplayPort signal?

Yes, when a USB-C port supports DisplayPort Alt Mode, it can carry a DisplayPort video signal. This allows you to connect a monitor using a USB-C cable, but the bandwidth depends on the USB version.

Which connection supports variable refresh rate?

DisplayPort supports variable refresh rate technology like G-Sync and FreeSync. USB-C with DisplayPort Alt Mode can also carry variable refresh rate, but support depends on the monitor and graphics card.

Do I need DisplayPort for 144Hz?

For 144Hz at common gaming resolutions, DisplayPort is the connection that supports the full refresh rate. Some monitors may support 144Hz over HDMI, but DisplayPort is the standard for high refresh rate gaming.