Do HDMI Cables Affect Picture Quality? (We Checked)

Many of us have heard that digital cables can affect picture quality. But what does that mean? How do HDMI cables affect picture quality? And do they really make a difference in the digital age?

In this article, we’ll discuss how HDMI cables affect image quality.

Here’s If HDMI Cables Affect Picture Quality:

HDMI cables don’t affect the quality of the screen image. HDMI cables are simple cables that either send a signal or do not. The only exception is if you’re using a broken or dented cable that doesn’t deliver a stable signal.

HDMI cables on a white background

How Is Image Quality Affected by HDMI Cable Quality?

The image quality of your TV is not affected by the quality of the HDMI cables you use.

Cheap cables can work as well as more expensive cables. There is very little to gain from buying a more premium HDMI cable.

If you experience flickering on the screen it will more likely be caused by interference from power cables. A power cable running in parallel with low-voltage cables can cause interference on the screen or to the sound signal.

Here are some examples of low-voltage cables:

  • speaker cables,
  • HDMI cables,
  • USB cables.

Try always to run power cables across HDMI cables rather than in parallel.

This will cause the least interference between the electromagnetic fields and the graphic signal.

Can You Actually See the Difference?

The image quality you see on your TV set is affected by two factors: the resolution of the signal being sent from the source device and how well it’s being processed by your television set.

In order for these two factors to work together properly, they need to be compatible with one another — an issue that is often overlooked.

The HDMI cable has very little to do with this.

When shopping for HDMI cables, you should look for ones that meet certain standards though. This is to ensure it will last a long time and to make sure that all the cobber threads inside the HDMI cable are actually firing a signal.

Any cable you buy in Wallmart or your local electronics department should do just fine.

You can also connect your HDTV using an HDMI cable to your computer monitor, which will provide you with high-definition viewing capabilities as well.

HDMI cables are used to transmit digital audio and video signals from one device to another.

This is the most common type of cable used in home entertainment systems today.

Does the Length of an HDMI Cable Affect Picture Quality?

HDMI cables are made up of three main parts:

  • The metal connector at each end, which plugs into your TV or Blu-ray player;
  • the plastic casing that covers the internal electronics;
  • and the electronic circuitry that transmits data between devices.

As long as you’re using a high-quality cable (and not one from a dollar store), you don’t need to worry about the length of your HDMI cables affecting picture quality

Because it won’t.

Try to always go for a HDMI 2.1 cable as it is the latest standard in HDMI cables that will ensure you get the full signal sent and delivered between your systems.

This will ensure both fast and accurate signal paths.

The HDMI standard has been updated several times since its debut in 2002, with the most recent update being version 2.0 and 2.1.

As long as you have a HDMI cable of 2.0 or 2.1 there’s not more you can do to get the best image quality through the cable.

If your HDMI cable is older than that (and many are), it may have trouble carrying the latest high-definition formats.

But newer cables — those manufactured in 2010 or later — should work fine even at distances up to at least 100 feet.

If you need to go farther than that, there are still options available for long-distance transmission of HD video signals, including fiber optic and coaxial cables.

Read this blog here about how to tell if an HDMI cable is good?

Do Expensive HDMI Cables Make a Difference?

As long as you use a rather new HDMI cable (like 5-7 years old) you will not see any benefit from using a more expensive HDMI cable.

The rest is just marketing jargon.

Do HDMI Splitters Affect Picture Quality?

HDMI splitters shouldn’t affect picture quality.

If you’re using a splitter that’s too old or low-quality, you may experience some degradation in picture quality, though.

However, if you’re using a decent splitter and connected it to a good HDTV, then your picture quality should be fine.

Either the HDMI splitter works or it doesn’t work. There’s no in between. If you get a good visual on both screens you know the cable works just fine.

What Is HDMI?

HDMI (High-Definition Multimedia Interface) is a digital audio/video interface standard for transferring uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television (DTV), or digital audio device.

The term “HDMI” is a proprietary trademark of the HDMI Licensing LLC industry consortium.

In other words, nobody can legally use the term “HDMI” unless they are part of this group and have paid to use it.

HDMI stands for High-Definition Multimedia Interface and is a type of cable that can transfer audio and video from one device to another.

The standard was developed by a group called “Video Electronics Standards Association” (VESA) in 2002.

HDMI cables are used in everything from TVs and DVD players to video game consoles, computers and mobile devices.

There are different types of HDMI cables, including:

  • Standard HDMI Cable: This is the most common type of cable used for home theater applications and comes in different lengths (6 feet, 10 feet, 15 feet). These are really old cables that you shouldn’t worry about if you’re buying a new cale.
  • High Speed HDMI Cable: This cable supports faster data transfer rates than regular standard HDMI cables do (18 Gbps), which means it can handle 4K video at 60 Hz as well as 3D content. High speed cables also support ethernet connectivity that standard cables cannot provide.


An HDMI cable is capable of transmitting uncompressed digital video and audio from a source device to your TV or projector at up to 10 Gbps. The cable itself has nothing to do with the quality of your picture — the signal transmitted through it is all that matters — but there are some technical factors to consider when shopping for an HDMI cable.

Read our blog here about do HDMI extenders reduce signal?


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