HDMI vs DisplayPort for Graphics Cards: Which Is Better?

Quick answer: which output should you use?

The short version: use DisplayPort when your monitor has it, especially for high refresh rates at 1440p or 4K. Use HDMI when you connect to a TV, an AV receiver, or a monitor that only has HDMI. Both can carry high-resolution video, but the two standards differ in bandwidth, cable types, and the features they support.

Current GeForce RTX 50 Series graphics cards use both DisplayPort 2.1b and HDMI 2.1b connectors, so the choice comes down to what your display supports. If you are picking a new card, our best 16GB graphics cards roundup covers many models with these outputs. Check the ports on your monitor or TV first, then pick a cable that matches the newer version on either end.

HDMI and DisplayPort versions explained

HDMI and DisplayPort are updated periodically, and each new version increases bandwidth. Higher bandwidth lets a cable carry more pixels per second, which translates to higher resolutions, higher refresh rates, or both. The version number matters more than the shape of the connector: a modern cable with an older version limit will cap what your GPU and monitor can do.

DisplayPort is the more aggressive standard on PCs. DisplayPort 2.1b is the version used on GeForce RTX 50 Series cards. It supports very high bandwidth, which is why those cards list a maximum digital resolution of 4K at 480Hz or 8K at 165Hz with Display Stream Compression (DSC). HDMI 2.1b, also present on RTX 50 Series cards, is capable of similar high refresh rates at 4K, though the exact ceiling depends on the implementation.

For context, older cards like the RTX 40 Series use DisplayPort 1.4a and HDMI 2.1. DisplayPort 1.4a is still sufficient for 4K at 120Hz or 144Hz with DSC, but the newer 2.1b standard gives you headroom for future monitors. If you are considering an RTX 4060, our best RTX 4060 graphics cards guide lists its output specs.

Resolutions and refresh rates: what each connector supports

The maximum resolution and refresh rate you can get depends on the GPU, the port version, the cable version, and the monitor. None of those alone determines the result; they all have to line up.

On GeForce RTX 50 Series cards, the display engine supports up to 4K at 480Hz or 8K at 165Hz with DSC over both DisplayPort 2.1b and HDMI 2.1b. That is the theoretical ceiling for those GPUs. In practice, you will be limited by your monitor's native resolution and refresh rate, and by the cable you plug in.

At 1080p and 1440p, even older DisplayPort and HDMI versions are usually enough for 144Hz or 165Hz. At 4K with high refresh rates, you want the newest version you can get, because the bandwidth requirement grows quickly. For a deeper look at how resolution and refresh rate interact, see our resolution and refresh rate guide. If you are choosing between a 1440p high-refresh monitor and a 4K monitor, both benefit from DisplayPort 2.1b if the monitor supports it.

Multi-monitor setups: DisplayPort is usually the plan

GeForce RTX 50 Series cards support up to four simultaneous monitors. The standard connector layout is three DisplayPort outputs and one HDMI output. If you run three or four displays, you will likely use DisplayPort for most of them and HDMI for one.

DisplayPort is the natural fit for multi-monitor because it is the most common output on PC monitors, and it supports daisy-chaining on some displays (though not all). HDMI is more common on TVs and on budget monitors. For a triple-monitor gaming setup, check that your monitors have DisplayPort inputs; if they only have HDMI, you may need an adapter or a cable with the right ends. Our multi-monitor setup guide covers cabling and configuration in detail. If you are building a new system, many AMD graphics cards also offer three DisplayPort outputs.

Cables and adapters: what to buy

The cable matters as much as the port. A DisplayPort 1.4 cable will not carry a 4K 240Hz signal, even if your GPU and monitor both support it. Match the cable version to the highest version on either end. For DisplayPort 2.1b, you need a cable certified for that version. For HDMI 2.1b, you need an Ultra High Speed HDMI cable.

Adapters can help when your monitor has only one type of input, but they do not upgrade the bandwidth. An HDMI-to-DisplayPort adapter is limited by the older standard on either side. If you need a long cable run, keep in mind that DisplayPort and HDMI both have practical length limits, and longer cables may not reach full bandwidth.

If you are buying a new monitor, check which cable it includes in the box. Many monitors ship with a cable that matches their highest input, but not always. It is worth confirming before you spend on a separate cable. For high-end cards with the newest outputs, like those in our best 32GB graphics cards list, a high-quality cable is essential to avoid bottlenecks.

What to pick for your use

Questions

Which is better for gaming: HDMI or DisplayPort?

For PC gaming, DisplayPort is generally the better choice because it has higher bandwidth in its current version (2.1b) and is the standard on high-refresh monitors. HDMI 2.1b is also excellent and is the right pick for TVs. Use whichever your monitor supports at the resolution and refresh rate you want. If you are still choosing a card, our best 16GB graphics cards guide can help.

Can HDMI 2.1b do 4K at 240Hz?

Yes, HDMI 2.1b on GeForce RTX 50 Series cards supports 4K at up to 480Hz with DSC, so 240Hz is well within range. The limit is your monitor's refresh rate and the cable version you use. For 4K gaming at such high refresh rates, you will need a powerful GPU, like those listed in our best 32GB graphics cards roundup.

Do I need a special cable for DisplayPort 2.1b?

Yes. You need a DisplayPort cable certified for DisplayPort 2.1b. An older DisplayPort 1.4 cable will not carry the full 2.1b bandwidth, even if your GPU and monitor support it.

Can I use an adapter to convert HDMI to DisplayPort?

Yes, but the adapter is limited by the older standard on either end. For example, an HDMI 2.1 to DisplayPort 1.4 adapter can only deliver DisplayPort 1.4 bandwidth. For best results, use a native cable that matches the port version.

Does the cable version matter for 1080p or 1440p?

For 1080p at 60Hz or 144Hz, even older HDMI and DisplayPort versions are fine. At 1440p with refresh rates above 165Hz, you benefit from a newer version, but you do not need 2.1b unless you are pushing high refresh rates at 4K. If you are on a budget, our best 8GB graphics cards list includes cards with common ports.