HDMI vs. DVI: Differences and Similarities

Before continuing further with our discussion on HDMI Cables wholesale, it would be appropriate at this point to bring out the main similarities and differences between these two digital standards. Both are very closely related in that HDMI uses the same digital encoding scheme used by DVI-D in the transport of digital video.
This explains why all that is required to interconnect a DVI device with HDMI-enabled equipment, is a simple DVI-to-HDMI cable adaptor with a DVI-D plug on one end and an HDMI connector on the other. In this case however, digital audio will have to be carried separately since DVI does not support audio over the same interconnect. This would not be the case in an 'all' HDMI-to-HDMI cable, where the digital audio signal is carried along with the digital video over the same cable.
However, out of the different DVI flavors, HDMI is only compatible with DVI-D format. In other words, there's no way to adapt an analog VGA signal to go in through an HDMI connection as is possible with a DVI-I interface.
Other important differences include:
HDMI cable connectors are substantially smaller than the 37.0 mm wide DVI plug.
The DVI standard was originally developed to be used by PCs, while Mini HDMI Adapter was developed by some of the major electronics manufacturers for use in consumer electronic products such as DVD players and digital televisions.

Tall you about HDMI cable buying guide

Which store has the best deals on HDMI cables? Which Web site has the best selection? Which HDMI cable is right for your TV?
Answers to these questions, and more, in the definitive (if I do say so myself) HDMI cable buyers guide:
First off, cheap cables will produce the exact same picture and sound quality as expensive cables. Check out our HDMI Cables wholesale trilogy: " Why all HDMI cables are the same ," " Why all HDMI cables are the same, Part 2 ," " Still more reasons why all HDMI cables are the same " and " 4K HDMI cables are nonsense ." These articles go into extensive detail about how HDMI cables work, and why by their very nature, you're either getting a perfect image, or no image at all.
Type
When it comes to TVs, there are four kinds of HDMI cables:
High speed with Ethernet
High speed without Ethernet
Standard speed with Ethernet
Standard speed without Ethernet
Standard speed cables can handle up to 1080i. High speed can handle definition far beyond 1080p. Here's the thing: the price difference is negligible, so only buy high-speed cables. Most HDMI cables you'll find in a store are high-speed cables.
Very few products have Ethernet-over-HDMI compatibility, so it's not likely you need to pay extra for the feature in the cable. If you want to "future proof" your system slightly, then that's your call. For most people, though, I don't see the point. Again, the price difference is marginal, so it's not a big deal either way. If you're sure your equipment has Ethernet-over-HDMI compatibility, then of course check out those HDMI cables. That likelihood is small, though.
The short version: Buy high speed without Ethernet and don't worry about the other types.
Keep in mind a few things: There is no such thing as an "HDMI 1.4" cable , nor do you need a special cable for 3D , 120 or 240Hz , or Audio Return Channel (ARC).
There is no loss in picture quality over long distances. However, there will be a point where you just don't get a picture anymore. So if you're not sure if 6 feet is long enough, go for 10 feet. It shouldn't cost that much more money.
Although HDMI 2.0 is coming, there aren't many products that support it yet . More importantly, current HDMI cables will work with HDMI 2.0. This ties in to the article mentioned above, but it's worth repeating: 4K HDMI cables are nonsense .
One thing to consider, regardless of length, is an active cable. RedMere technology and other active cables allow for thinner cables, or really long cables. These can be more expensive, but depending on how or where you're installing them, sometimes a tiny flexible cable works better even if it costs a little more.