HDMI vs DisplayPort – Differences and Key Features
Two of the most popular media interfaces for sending audio and video signals to your screen are HDMI and DisplayPort. You’ll see that the majority of multimedia equipment, such as TVs and Blu-ray players, only have HDMI inputs when comparing HDMI vs DisplayPort. Since most computers and monitors offer both inputs, the question of which one to use with your monitor arises. To assist you in making that choice. Let’s explore it: What is DisplayPort? Over the past ten years, DisplayPort has become widely used, particularly in consumer goods like expensive desktop monitors and graphics cards. This connector has an L-shaped header. DisplayPort is an important hardware standard with several connection and cable technology options, even though it does not currently have the same popularity as HDMI, as seen in HDMI vs DisplayPort cable comparisons. What is HDMI? A data transmission standard called HDMI, or high-definition multimedia interface, links an output device, such as a television, projector, desktop monitor, laptop, or speaker, to a data source, like a CPU or set-top box. Electronics makers initially developed HDMI in order to establish a common standard for connecting devices, a key factor in the HDMI vs DisplayPort which is better debate. HDMI vs DisplayPort Difference Let’s explore some of the differences between DisplayPort and HDMI, two media interfaces. 1. Physical Differences Physically, DisplayPort and HDMI connectors are extremely similar. DisplayPort has 20 connections, while HDMI uses a 19-pin cable. While it isn’t a feature of the DisplayPort standard, the majority of DisplayPort connectors have a physical latch that keeps them from being accidentally unplugged. However, latches are a rare feature in HDMI connectors. There are Mini HDMI, Micro HDMI, and Mini DisplayPort connectors in addition to the normal HDMI and DisplayPort connector types found on the most popular inputs and cords. With their smaller size, they have the same bandwidth and support for media formats. However, only a small number of displays have these connections, as noted in mini HDMI vs DisplayPort discussions. 2. Maximum Cable Length While officially certified HDMI cables do not have a maximum cable length, longer cables are more likely to cause problems, such as dropped signals. Therefore, a cable must function properly at whatever length is accessible to be certified by HDMI. Since many HDMI cables aren’t officially certified. It can be simple for manufacturers to create longer cables and make claims about their functionality. However, purchasing one of these carries the chance that it won’t work. Long DisplayPort cables cause the same problems. The majority of cables, especially those that offer higher bandwidth, are shorter than the 10 feet that DisplayPort has set as the suggested maximum length. HDMI DisplayPort No official maximum length Recommended maximum length is 10 feet (3 m) Suggested up to around 40-50 feet (13-15 m) Many cables are short for optimal performance Optimal performance at 6 feet (2 m) or less 3. Versions and Bandwidth Over the years, multiple versions of DisplayPort and HDMI have been released, each with different supported formats and bandwidth restrictions. For example, HDMI 2.0 can also be referred to as HDMI 2.0a because both DisplayPort and HDMI have experienced minor changes since their original launches. Older versions, such as DisplayPort 1.0/1.1 and HDMI 1.0 through 1.4, are no longer frequently found on monitors, as highlighted in the HDMI vs DisplayPort chart analyses. Not all monitors support the full bandwidth of the version they offer. For example, there are DisplayPort 2.1 displays that support UHBR10 with 40 Gbps bandwidth and HDMI 2.1 monitors with 24 Gbps bandwidth. Although they aren’t using the full bandwidth that the version provides, these monitors are nonetheless technically HDMI and DisplayPort 2.1. Type HDMI DisplayPort Version (Alternative Names) 2.0 (2.0a, 2.0b) 2.1 (2.1a, 2.1b) 2.2 DP 1.2 (1.2a) DP 1.4 (1.4a) DP 2.1 (2.0, 2.1a) Release Year 2013 2017 2025 2010 2016 2019 Max Bandwidth 18Gbps 48Gbps 96Gbps 21.6Gbps 32.4Gbps 80Gbps Compression No Yes Yes No Yes Yes HDR Yes Yes Yes Yes Yes Yes 4. Supported Signals Since it’s limited to the lowest common denominator, the highest resolution and refresh rate you can get will vary depending on the particular versions of your source and display. This means that while you can have a monitor with HDMI 2.1, your signal will only be able to use HDMI 2.0 bandwidth if your graphics card only supports that bandwidth. On the other hand, the bandwidth is still restricted to HDMI 2.0 if you’re using an HDMI 2.0 display with an HDMI 2.1 source. In basic terms, the maximum resolution and refresh rate are determined by the minimum bandwidth that your source and display can provide. The maximum refresh rate for standard resolutions using uncompressed 8-bit and 10-bit signals with Chroma 4:4:4 is shown below. Resolution Color Depth HDMI 2.0 HDMI 2.1 HDMI 2.2 DP 1.2 DP 1.4 DP 2.1 1920×1080 8-bit 246Hz 589Hz 1178Hz 289Hz 406Hz 885Hz 10-bit 202Hz 499Hz 998Hz 238Hz 338Hz 771Hz 2560×1440 8-bit 147Hz 379Hz 758Hz 174Hz 251Hz 610Hz 10-bit 119Hz 314Hz 628Hz 142Hz 206Hz 517Hz 3440×1440 8-bit 112Hz 297Hz 594Hz 133Hz 194Hz 492Hz 10-bit 91Hz 245Hz 490Hz 108Hz 158Hz 412Hz 3840×2160 8-bit 69Hz 188Hz 376Hz 82Hz 120Hz 324Hz 10-bit 55Hz 153Hz 306Hz 66Hz 97Hz 267Hz Key Features and Differences You can choose which interface to use based on the features you wish to use, as each interface provides a few capabilities. A few examples are shown below: Multi-Stream Transport (MST) Multi-Stream Transport (MST), which was first introduced with DisplayPort 1.2, enables you to connect many displays in a chain from a single DisplayPort connection on your computer. Daisy chaining is another name for this technique, which works with an external hub or a compatible monitor with a DisplayPort output, a feature explored in HDMI vs DisplayPort 1.2. According to theory, this technique enables you to operate up to 63 different screens on a single port, although the overall bandwidth cannot exceed the port’s maximum bandwidth. While DisplayPort to HDMI hubs can produce comparable
