What Is The Difference Between DVI-I And DVI-D? [2024 Guide]


A DVI-D connector transmits only digital signals, whereas a DVI-I connector transmits both digital and analog signals. Whereas a DVI-D cable is fully compatible with a DVI-I connector, reading only the digital output and ignoring the analog.

Let’s dig deeper to understand the difference between DVI-I & DVI-D in detail.

Summary of Differences Between DVI-I And DVI-D

  • DVI-D is a digital-only DVI connection, whereas DVI-I accepts electronic and analog messages.
  • DVI-I connectors have all the pins needed for a single link DVI cable, but DVI-D connectors lack the four pins required to transport the analog signal.
  • The tall and flattened pin on the DVI-D connector is slightly shorter than the pin on the DVI-I connector.
  • A DVI-D connection can be plugged into a DVI-I port, but not vice versa.
  • Single-link DVI-D connectors have 19 pins (18+1), while dual-link DVI-D connectors have 25 pins (24+1). Dual-link adapters have 29 pins (24+5), whereas single-link DVI-I connections have 23 pins (18+5).

What is DVI?


The Digital Display Working Group (DDWG) was the organization that was responsible for developing the Digital Visual Interface (DVI), which is both a protocol and a standard for graphic display.

The electronic connection links display devices like computer screens, televisions, and projectors to video codecs like visual display processors. Other examples of display devices include televisions.

The API was established in 1999 to work toward the development of a technical standard for the direct transmission of electronic video content.

Significance of DVI-I & DVI-D

The link or functionality that is used between displays and laptops or home entertainment systems is referred to as DVI-I. This acronym stands for Digital Visual Interface Integrated.


Displaying can be done on either an LCD or a CRT monitor thanks to DVI-I, a digital video output network. The DVI-I interface supports digital as well as analog signals. However, it will not be used all at once for an extended period.

DVI-I can detect whether a monitor is connected and choose whether to produce digital or analog output accordingly. With the assistance of a DVI to VGA converter, DVI-I ports can be efficiently utilized in products such as displays with LED Backlit LCD screens. These ports can also be used in more mature displays such as CRT displays.

Because of this, the majority of people opt for graphics cards in addition to processors that come equipped with DVI-I ports for the majority of their projects. DVI-I connections are frequently used because of their increased capability—the participation of enhanced capacity results in additional links being offered through DVI-I connections.

The big straight pin on a DVI-I connector typically has a relatively wide diameter. The male socket of a DVI-I cable cannot be attached to a DVI-D female adapter because the DVI-D adapter does not have slots for the additional pins required by the DVI-I standard.

The third type of technology that can be used with DVI is referred to as DVI-A, and it relates to an interface that is only capable of transporting analog signals. As an analog display connection technology, VGA is more prominent and successful than DVI-A, which results in DVI-limited A’s adoption.

What is DVI-I?


Most older graphics cards and motherboards have a DVI connector for connecting a monitor or projector to the computer. A DVI-D connector only transmits digital signals.

When used with the DVI to VGA adapter, a DVI-I connector on a graphics card can send a digital signal (for digital displays such as flat panel LCD monitors) and an analog signal (for older shows such as a CRT monitor). 

The graphics card with the DVI-I connector has more pins than the graphics card with the DVI-D connector. The DVI-I connector has additional fasteners, which are used to carry the analog signal. 

How Does a DVI-I Work?

A DVI-I connector, on the other hand, can send both digital signals (for digital displays such as LED-backlit LCD monitors) and analog signals (for older displays such as CRT monitors) when used with a DVI to VGA adapter. As a result, a DVI-I connector has more pins than a DVI-D connector.

Single-link DVI-I connectors have 23 pins (18+5), while dual-link connectors have 29 pins (24+5). DVI-I connectors do not convert analog and digital signals, but they can accept either digital or analog signals at the same time.

If a video card, monitor, and cable all have DVI-I connections capable of supporting both analog and digital signals, only one mode of operation can be used. DVI-I connectors, as their name implies, are compatible with all three DVI cable types.

Graphics cards and motherboards with DVI-I connectors are thus fully compatible with LCD monitors that typically have DVI-D ports. The DVI-D cable reads only the digital output from the DVI-I connector and ignores the analog signal. Finally, there’s the DVI-A connector, which can only transmit analog signals and is now obsolete.

What is DVI-D?

The DVI-D connection is a form of DVI connection that only manages digital data. The word “digital” represents the letter “D” at the end. This type of connection could be a single-link or a dual-link connection.


In single-link, there is only one emitter used, which allows for display resolutions of up to 1920×1200 pixels and a throughput of 1.65 gigabits per second. A tall pin with a flattened top serves as the grounding connection in addition to the device’s 18-pin connection for power, data, and clocks.

The dual-link variation has one more broadcaster than the standard version. The dual-link, also known as DVI-DL, has six additional data ports, which raises the image quality capacity to 2560 by 1600 and offers a higher throughput of 2 Gbps. Additionally, the dual-link has a higher resolution capacity.

It is possible to use a single product with a dual-link connection or socket because the link contains all the links required by the single user interface. On the other hand, a single-link adapter is missing some of the ports or mechanical interconnections needed for a dual-link connector.

DVI-D is consistent with other touchscreen experiences, such as HDMI, despite a few inconsistencies, such as the lack of capability for signal amplification in DVI-D. Different touchscreen experiences include.

The transition from DVI-D to HDMI can be accomplished with the help of a converter. Both DVI-D and VGA have compatibility issues. 

The majority of digital displays make use of a connector known as DVI-D. On the other hand, monitors that can process both digital and analog signals typically use a DVI-D junction box in addition to a VGA junction box.

Because DVI-D does not include the additional four analog pins that are present on DVI-A and DVI-I adapters, female DVI-D connections are unable to accept male DVI-A or DVI-I cables.

How does a DVI-D cable work?

The DVI connector on a graphics card or motherboard that has one will have a different number of pins and a different arrangement of those pins depending on the type of DVI connector it is.

At this time, the DVI connector is the most versatile option available because, with the right adapters, it can be used with HDMI, VGA, and DisplayPort devices. Higher bandwidth is achieved thanks to the fact that the Dual-Link connectors make use of all 24 pins.

Single-Link DVI has a maximum screen resolution of 1920 by 1200 at 60 hertz, whereas Dual-Link DVI can support a screen resolution of up to 2560 by 1600 at 60 hertz or 1920 by 1080 at 144 hertz.

Comparison of Features 

The comparison of DVI-I and DVI-D is possible considering all the following parameters:

1. Displays

LCD monitors with LED backlighting and cathode ray tube monitors (CRT) are both possible choices for use with DVI-I.

LCD monitors with LED backlighting are the only kind compatible with DVI-D.

2. Transmission

The DVI-I connector is capable of transporting analog as well as digital signals. Only digital signals can be transmitted via a DVI-D connector.

3. Numbers 

DVI-I connections that are single-link each have 23 pins, while DVI-I adapters that are dual-link each have 29 pins. Single-link DVI-D connectors only have 19 pins, whereas dual-link DVI-D connections have 25 pins.

4. Compatibility

VGA devices are DVI-I compatible. DVI-D is not compatible with devices that use VGA.

5. Pins

The number of pins on a DVI-I controller is reasonably substantial. The number of pins on a DVI-D controller is relatively low.

What do You need? DVI-I or DVI-D

The number of pins on a DVI-I controller is pretty substantial. The number of pins on a DVI-D controller is relatively low. Because a single-link DVI-D or DVI-I cable can only transport 3.96 Gbit/s, the maximum resolution achieved on display with a refresh rate of 60Hz is 1920 x 1200. 

A dual-link gives you the ability to use a larger bandwidth, increasing it to 7.92 Gbit/s, and it gives you the ability to use a better resolution of 2560 by 1600 at 60 frames per second. This is because of the mechanical construction of the dual-link. Even so, DVI cannot siphon. 

Both DVI-D and DVI-I are getting more and more out of date, but you have no choice but to use them if Port cannot be used. DVI is not as good as HDMI or DisplayPort, offering superior visual efficiency and durability. DVI is not as good as these other options.

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