Hi,
Video card and Monitor vendors have always lied.
Even back to the days of VGA adapters and monitors when they used to use 150 Ohm terminations instead of 75 Ohm because it made their displays "brighter". Poor bandwidth because of cable impedance match, but brighter.
They would also trade-off high frequency perfomance in their EMI R-G-B Output filters for regulatory compliance. This was obvious when you displayed a bunch of capital "T" or "H"s. The top bar of the T was brighter than the vertical bar of the T. Reverse video was terrible as things became washed-out because of poor slew rates.
Remember when they would fake the tests for the benchmarking (like BITBLTs, and common routines they would cache). It gave them impressive benchmark scores, but no better operational performance. They did this with Windows and Unix drivers.
They have always lied.
Ross
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In SI, a little termination and attention to layout goes a long way. In EMC, without SI, you'll spend 80% of the effort on the last 3dB.
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