When taking a further look at the 250Mhz RAMDAC and
comparing it to the 230Mhz RAMDAC at the Mystique G200 so can I see that the boost of
performance ain’t that big actually. You will probably notice the extra performance
if you use a resolution of more then 1280 x 1024. But I don’t think that you will
notice it on lower resolutions and as most of the home users use 1024 x 768 and then you
wont have much use of the faster RAMDAC at the Millenium G200. But then can you have use
of the TV-Output that is on the Mystique G200. So I think that Matrox has done just the
right thing to put the faster RAMDAC on the "business" card so that the users
that most likly have advantage of the faster RAMDAC actually get that performance boost.
To actually understand how the G200 works and to see where the performance and image
quality comes from when looking at a video card like the Millenium G200 so must we look at
the chipset and the features of it.
128-bit Dual Bus Architecture
The unique 128-bit Dual Bus uses two independent 64-bit buses that operate in parallel
inside the graphics engine to effectively double the raw performance of almost every
operation. Additionally, the 128-bit Dual Bus architecture uses Dual Command Pipelining
which permits read and write phases of two consecutive commands to be overlapped and
executed simultaneously. In a normal 128-bit Dual Bus can the chipset not both send and
receive information at one time. It first has to send information to the card and then it
has to wait for the sending to be done to receive some information from the card. Now with
the two independent 64-bit buses can it both receive and send information at the same
time. As you probably understand does this mean that the 2D performance will increase and
it will also allow frequent copying of small bitmaps and fonts in a much faster speed then
other card.
