What graphics card can display 1920x1200 res. via DVI-out

[AssassyN]

I'm just wondering which cards/chipsets can output a res. of 1920x1200 (not 1080) via their DVI-out port (not VGA-out)...thanks!

 

[AssassyN]

Anyone know?

 

[Lynx516]

NONE! DVI is only speced to do 1280x1024 at 60hz it PHYSICALLY cannot go higher

 

[mchammer187]

Originally posted by: Lynx516
NONE! DVI is only speced to do 1280x1024 at 60hz it PHYSICALLY cannot go higher

my 2000 FP on Radeon 9700 pro does 1600x1200@60 hz

 

[PliotronX]

The TMDS signalling in the DVI interface has a maximum bandwidth of 165 Mhz, or 165 Mpixels/s. At 60 Hz this equals to a maximum resolution of 1920 x 1080 for the display over single TMDS link. Obviously not enough for a 1920 x 1200 display.

However the standard DVI interface has enough pins for two TMDS links and there are both displays and cards with a single or dual TMDS implemented (12 or 24 pins). A dual link DVI interface has double the bandwidth and therefore a maximum resolution of 2048 x 1536.

Linky.

So basically the monitor and the video card must support dual DVI signaling. As for what video cards support this, I don't know. I'm willing to bet only high end expensive cards which don't game too well support it though.

 

[Shalmanese]

I did a bit of looking around a while ago but, IIRC, some of the Quadro's and some of the FireGL cards did. I think the low ends of each model didnt. I would assume the 3d wildcats did but that was already way outside my budget. In the end, its more economical to go for dual 17" 1280x1024 monitors and have one run off a high quality VGA cable. Alternatively, you could shell out for a 7500 pci card and have both on DVI with the option of 2 more CRT's at a later stage. You lose 3d accelleration on both screens however.

 

[AssassyN]

Whoa...thanks a bunch guys, I would've never guessed!

 

[Cadaver]

Originally posted by: Lynx516
NONE! DVI is only speced to do 1280x1024 at 60hz it PHYSICALLY cannot go higher

Apparently not true. I'm using a 22" Apple Cinema Display (1600 x 1024) on my Athlon XP & Radeon 8500. The 8500 is far from a high-end card....

 

[Ketchup]

Originally posted by: AssassyN
I'm just wondering which cards/chipsets can output a res. of 1920x1200 (not 1080) via their DVI-out port (not VGA-out)...thanks!

The question in my mind would be what MONITOR can run 1920x1200?

 

[Shalmanese]

Wouldnt the Apple be using ADC and not DVI?

and plenty of high end monitors go far in excess of 1920x1200. They are mostly used for medical imaging, military apps, design work etc. Not that many consumer monitors.

 

[Cadaver]

Originally posted by: Shalmanese
Wouldnt the Apple be using ADC and not DVI?

and plenty of high end monitors go far in excess of 1920x1200. They are mostly used for medical imaging, military apps, design work etc. Not that many consumer monitors.

ADC is (simply) an Apple proprietary connector that carries DVI, USB and 24v power. A $79 ADC to DVI converter (costs that much since it contains a power suppy for the monitor - normally the monitor power is provided by the Mac to which it's attached) is all it takes to make my monitor happy on my Athlon box.

And the 22" 1600 x 1024 Cinema Display is (was) the only Apple widescreen to provide hardware brightness control buttons, and not software control (for which there is no Windows driver) like the rest of them.

And speaking of medical imaging & hi-res monitors... we're testing a couple of 2048 x 2560 monochrome LCDs at work. Very impressive.