Is Displayport preferable to DVI for monitor connections? [closed]

I'm currently running a single Dell 24" (2408WFP) screen, but am considering adding a second. The problem I've got is that I'm currently using the DVI connector to the on board graphics, so will need to purchase a new graphics card.

The 2408WFP also has HDMI and DisplayPort inputs, so I was wondering if DisplayPort is worth considering at present over DVI? On the same subject, does anyone actually manufacture reasonably priced DisplayPort cards - all I've managed to find seem to very expensive workstation cards aimed at financial/design/simulation markets.

For your use there is no special advantage to DisplayPort, and in some future where all video cards use DisplayPort, there is an easy adapter for DisplayPort->DVI so your monitor won't be obsolete.

The only advantage DisplayPort would give you right now where if you where running a 30" or other very high resolution panel, where you could use a single DisplayPort connector instead of two DVI connectors. If you need to play content protected video (i.e. Blueray) you will be far more likely to get compatiblity with HDMI then with DisplayPort, simply because of the rate of adoption.

DisplayPort is mainly positioned against HDMI, and besides the better licencing arrangement, DisplayPort offers a packet based interface instead of HDMI/DVI/VGAs single serial stream of video data. This means a DisplayPort cable can potentially carry several signals at once (for example a webcam built into a monitor wouldn't need a seperate USB cable). It is also of use in eventually reducing the cost of monitors, since it does not require the LCD to have a seperate controller (this makes no difference until all other connectors are dropped from the LCD, so it's mainly laptop LCDs that benefit).

Except for issues with content protected video, or non-sRGB displays, DisplayPort offers no difference in display quality over DVI.

I would agree with MicTech and add one thing... That DisplayPort is not some "proprietary system" it is a standard. A standard that is only used by a couple of companies but a standard none the less.

I have several DisplayPort items and have had no problems with them thus far.

UPDATE:

As far as inexpensive cards... I found this ATI one on Newegg. No review as of yet but specs seem ok depending on what you plan on doing with it.

I think, DiplayPort is future, but now waste money if you want second LCD.

My recommendation is, buy new graphic card with two DVI ports.

Here is good comparsion for DVI, HDMI, UDI and DisplayPort.

A comparison of next-gen display interfaces