Practical benefits of DVI vs analog [Archive] - Glock Talk

PDA

View Full Version : Practical benefits of DVI vs analog


AC37
12-26-2004, 15:40
Hello everyone, I recently acquired an LCD monitor with both the standard (analog) and DVI analog and digital connections. To be completely forthright, I know next to nothing about DVI, beyond that my monitor has a DVI connector, as well as my videocard, which is an nVidia GeForce4 Ti4800. I do a lot of gaming with my system, primarily somewhat older ones, including some FPS games like Deus Ex and IGI 2, not really any of the brand new ones so far like HL2, etc. I'm seeing that the DVI cables are ranging anywhere from $30-$100 (sheesh!), so what are the practical benefits to using the DVI connection exactly, versus the standard (and free) analog connection? Better framerates, better screen refresh times, etc., higher maximum resolution, etc.? I can't seem to find much information about this online so far...maybe I've just been looking in the wrong places. TIA for the help! :)

Deathwind
12-26-2004, 16:01
The main advantage of DVI is quality. If you're using a digital DVI connection with a digital display, the image stays unconverted going from your PC to your monitor, resulting in better quality. If you use analog, here's what has to happen:
-Computer converts digital image to analog signal to send to the monitor (quality hit during the conversion process)
-Analog signal is sent to monitor (possible quality hit due to interference)
-Analog signal is converted back to digital by the digital display (quality hit during the conversion process)

Also, if you shop around, you can pick up a DVI cable for under $30. Check out:
Cables to Go (http://www.cablestogo.com/resources/dvi.asp)
Cable4PC (http://www.cable4pc.com/dfp.htm#connector)
DataPro (http://www.datapro.net/dvi.html#Page05)

AC37
12-26-2004, 16:48
Deathwind, thanks for the response! Practically speaking, how significant would the difference be quality-wise between the two, assuming the same system and everything, video card, monitor, and visual data being sent to the monitor? Would the difference be barely detectable or fairly significant? When would the difference be most noticable, least noticable, etc.? I do a fair amount of gaming so I'm curious to know if spending the money would be a worthwhile investment. Thanks. :)