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DVI Vs. HDMI (Sorta)

Poll Results: Which display technology is best?

 
  • 6% (1)
    Dvi
  • 37% (6)
    HDMI
  • 56% (9)
    It's all the same N00b! / Neither
16 Total Votes  
post #1 of 11
Thread Starter 
I noticed that my GTX has an adapter that gives HDMI support. Obviously they didn't want this on the card (Cost is my guess) so i'm at odds with it.
If I do upgrade my LCD monitor to one that also had HDMI support, is this a better picture then DVI? Do they decode the digital signal in different ways? Furthermore, would that adapter even give a true hdmi signal?

Probably not a simple question.
I can only think that a HDMI connection is geared toward tvs and DVI is more suited for monitors.


Also, let us take this time to stomp on our vga cables.
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post #2 of 11
I was always under the impression that DVI is exactly the same as HDMI, just no audio.
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post #3 of 11
HDMI-Audio=DVI
    
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post #4 of 11
DVI and HDMI transfer video data in an identical manner, in a digital format. The only difference is that HDMI also transfers audio through the same cable. Component cables transfer data in an analog format. Below is the heirachy in order of quality best to worst:

1. DVI or HDMI
2. Component
3. S-Video
4. Composite (thru RCA connections)

I would put HDMI as first as it only needs ONE cable for both Digital video AND Digital audio

DVI will be Dig Video and Analog Audio
 
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post #5 of 11
Quote:
Originally Posted by Retrospekt View Post
I was always under the impression that DVI is exactly the same as HDMI, just no audio.
Correct. HDMI carries 5.1 audio too...which is awesome.

Quote:
Originally Posted by Anth0789 View Post
DVI will be Dig Video and Analog Audio
Says who? My TV is hooked up
Video(DVI) -> TV
Audio (S/PDIF) -> Stereo System.

That sure as heck isn't analog
Edited by justarealguy - 7/3/08 at 7:56pm
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post #6 of 11
^^ Pretty much.

Quote:
Are there any differences between DVI and HDMI? DVI stands for Digital Video Interface. HDMI stands for High Definition Multimedia Interface. First let's discuss what each of these interfaces is and how it works.

Digital Video Interface, or DVI, is actually a predecessor of HDMI. Digital Video Interface was made by the Digital Display Working Group (DDWG). The original design for DVI included conversion of analog signals by converting analog into a digital signal. This was done so that both analog and digital signal monitors could be accommodated by DVI. Data is transmitted by the use of transition minimized differential signaling (TMDS) protocol and provides a digital signal from a PC's graphics subsystem to the display unit.

There are actually three types of DVI. There is DVI-A and this type of DVI is used for analog signals like VGA. The second type of DVI is DVI-D. This type of DVI is used for digital signals, and this type of signal is the one that all home theater products use and that are intended for consumer home use. DVI-I is the third type of DIV. This type is a combination of DVI-A and DVI-D.

Two levels of performance are supported by DVI-I. These levels are single link and dual link. Currently all home electronics products are designed around the single link standard. A dual link cable, however, is 100 % compatible with a single link cable plus the dual link cable offers the benefit of adaptability in the future for any wide band width applications. DVD-I is a complete, fully digital video transport protocol that is supportive of all digital video formats including 480p, 480i, 540p, 720p,1080p, and 1080i.

High Definition Multimedia Interface is the only uncompressed, all digital audio/video interface that is supported by the industry. Founders of HDMI include manufacturers of leading consumer electronics Panasonic, Phillips, Hitachi, RCA, Sony, Toshiba, and Silicone Image. HDMI is also supported by motion picture producers Universal, Fox, Disney, and Warner Brothers, as well as system operators EchoStar and DirecTV. High Definition Multimedia Interface provides an interface in between any video/audio source, like an A/V receiver, digital television, and DVD player over one cable total, instead of one cable for video and one cable for audio. HDMI will support high definition video, standard video, and / or enhanced video plus multiple channels of digital audio on one single cable. HDMI will also transmit every ATSC HDTV standard and will support eight channel digital audio. HDMI has plenty of band width to spare so any future requirements and enhancements can be accommodated.

HDMI and DVI actually are more alike than they are different. Both of these support the transmission of digital signals. Both DVI and HDMI are based on specifications that are similar, because HDMI specification was derived from the specification for DVI.

There are two important differences between DVI and HDMI. The first difference is that HDMI technology incorporates content security that is called High Definition Content Protection, also known as HDCP. The other huge difference between Digital Video Interface and High Definition Multimedia Interface is that DVI can only support digital video, and HDMI can support audio and video on the same cable.

This leads to another big difference between HDMI and DVI. The number of cables that need to be used and run during installation. With Digital Video Interface at least two cables are needed. One cable is needed to support the video signal, and one cable or cord is needed to support the audio signal, because DVI can only support video, not audio. With HDMI only one cable is needed for the installation. This is because the HDMI can support all formats of digital video plus it can support multiple channels of audio signal as well.

The good news is that despite their differences, a backward compatibility for video exists between HDMI and DVI. Because HDMI evolved from DVI, they are both identical when it comes to video. But remember, DVI can not support digital audio. A good example is an older DVI connection on the source and an HDMI connector to the display. In this case, all that is needed to see the video is an HDMI to DVI cable. However, a separate cable for audio is needed to carry the the digital audio so the sound can be heard.
http://www.abccables.com/info-dvi-hdmi.html
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post #7 of 11
on this topic, does anyone have the drivers to get my 3870 to output audio over the dvi-hdmi adapter as advertised on the box?
post #8 of 11
Thread Starter 
lol, that GIANT quote helped me none.
Thanks for your input Anth, I did not know it was really the same video signal. I was aware it did audio too, but of course this is useless more or less for a monitor.

I'm totally ripping that dumb spdf audio cable out of my card now.
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post #9 of 11
all right as above.... HDMI= DVI-audio no difference apart from that.
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post #10 of 11
can't DVI do alot higher resoltuion them HDMI i thought HDMI only does 1920x1080,but HDMI has audio and its cable and connector are much smaller and more flexible, which is why HDMI is better. There is bearly enough room to fit my bulky DVI cable in the back of my monitor
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