Walk up to a wall of HDMI cables at your local electronics store or browse your online outlet of choice and you’ll see all manner of brands claiming their cables offer better picture and sound quality than the competition. Indeed, there is perhaps no consumer electronics segment more riddled with marketing voodoo and misinformation than the cable and wire industry. It’s nearly impossible not to be coerced into spending premium dollars in the pursuit of the best possible experience. But is there really a difference between expensive HDMI cables and budget offerings? We asked an expert to find out.
“In terms of picture quality there’s no difference,” explains Jeff Park, Senior Technical Manager for HDMI Licensing, LLC. “It’s digital, so it’s all or nothing.”
So the short answer is no. If you think a more expensive cable is going to deliver a better picture, then you’re mistaken.
“Whether you have a $100 cable or a $5 cable, if they meet the same specification requirements there should be no difference,” says Jeff. “From a technical point of view they are exactly the same.”
“Cables are rated by speed,” Jeff explains. “There are only two certifications: The original HDMI 1.0 Standard cable, designed for the first HD transition, so 720p, 1080i support, which are very rare now.”
“With the introduction of HDMI 1.3 we doubled the bandwidth from about 4.9 Gigabits per second to over 10 Gbps, and these cables are called ‘High Speed HDMI’ cables. Any cable that claims to be high speed must support the full bandwidth.”
If you have a High Speed HDMI cable then you’re set for watching anything up to 4K right now.
“HDMI 2.0 makes the signaling method more efficient, so with the old method, a High Speed HDMI cable could handle 10.2 Gbps; now it can handle 18 Gbps.”
That means that existing High Speed HDMI cables, which should always be labeled as “High Speed,” both on the packaging and the cable itself, can handle 4K content at 60 frames per second. If you’re buying a new 4K TV and you already have a High Speed HDMI cable, then there’s no need to buy a new one.
“People don’t realize, but we actually supported 4K at up to 30fps back in 2009,” says Park.
If you have a High Speed HDMI cable then you’re set for watching anything up to 4K right now, and the price is not going to impact the picture quality. But are there other, valid reasons for spending more on a cable?
“There are major durability differences between different cables and many manufacturers offer additional features, beyond the ability to carry an HDMI signal, that could add value and cost” says Park.
There might not be any real benefits in terms of audio or picture quality with an expensive HDMI cable, but here are a few reasons that you might consider spending a little more.
“Even if you design the perfect cable, making it exactly the same every time is difficult. An HDMI cable has 19 pins and it’s a pretty complex manufacturing process — scaling that up to produce thousands of cables and keep the quality the same will be a challenge,” says Jeff. And that’s before you consider the trade in fake cables, “We have bought cheap cables and literally found wires missing.”
HDMI does have a dedicated compliance team that polices the industry. They even shut down some exhibitor booths at CES over licensing issues, and they work with big retailers to ensure all the products they offer are genuinely HDMI compliant. Still, there’s always some risk that fakes can slip through into the market.
“Some cables are active cables, particularly thin or long cables,” explains Park, “and they have active electronics on one side or both sides of the cable to help boost the signal and maintain integrity.” Monoprice’s Redmere cables are a good example of an active HDMI cable.
Longer cables are inevitably going to cost a little more, and they are becoming more common as more and more people wall-mount their TVs. Thin cables are more portable, so they’re popular with laptop owners, but the thinner the cable is, the more difficult it is maintain signal integrity, so they employ active technology which adds to the cost.
“There are some HDMI cables out now that will upscale 1080p to 4K,” says Park.
That means you can plug an HDMI cable into a 1080p Blu-Ray player at one end and a 4K TV at the other end and it will scale up the image. Manufacturer’s claim it does a better job of upscaling the content than the TV can on its own. These cables may require a USB port to draw power.
“Ensure that the cable is clearly marked as a High Speed HDMI cable,” suggests Park. “Check the user reviews, even five minutes of online research can tell you a lot about a product.”
You can check out HDMI’s website for more details about what to look for, and there’s even a finding the right cable guide available. Stick to reputable retailers so you can return anything sub-standard, and check for positive reviews, but you shouldn’t really need to spend more than, say, $10 for a 3-foot cable.
“Price is not really indicative of signal quality; they’re not related at all. What determines quality is your source material,” says Park. “You’re not going to get a $100 signal. The quality of the content is everything. Cables, as long as they’re certified, will carry whatever you input and output it exactly the same at the other end.”
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This post is brought to you in paid partnership with Best Buy.
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