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05-14-2006, 02:05 PM
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#1 |
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Member (9 bit)
Join Date: Feb 2002
Location: Vancouver, BC
Posts: 365
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Does a DVI moniter take the processing load off the video card or CPU?
Hi, I am wondering if having a DVI moniter makes for less processing, with regards to watching movies or TV (no games). My understanding is that the movies are digital, so to send to a non-DVI moniter, they have to be converted to analog. But for a DVI moniter no conversion is necessary so it is less processing. Or are we talking about a really small amount of processing anyway?
I don't really know what I am talking about but I want to buy another moniter. I already have DVI out on my video card. I am also buying a PCI TV tuner so I want to watch TV either on the same moniter I am working on or a second moniter but I am worried about the load on my computer- Thing is moniters with DVI and about $100 more expensive and otherwise I am not fussy at all about LCD moniter quality. Does anyone know anything about DVI? Thanx 
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05-14-2006, 03:03 PM
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#2 |
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Wrench Bender
Join Date: Dec 2002
Location: Plymouth,MN
Posts: 5,961
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By the time the video signal gets to the monitor jack on the video card, all of the processing has been done and mostly by the GPU.
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05-14-2006, 03:08 PM
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#3 |
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Member (14 bit)
Join Date: Feb 2000
Location: Offenbach/Main (Germany)
Posts: 8,485
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The digital/analog conversion is done by the RAMDAC, a hardware chip (nowadays implemented into the GPU, but still as an independent part.).
With DVI the TMDS is used instead. There is no performance difference as neither CPU nor the GPU itself have to do anything with the conversion. The difference between VGA and DVI is not in performance, it's in picture quality. RJ
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