Does the video bus matter?

Many graphics boards are available in MCA (both 16 and 32 bit), ISA (both 8 and 16 bit) and EISA, and this raises the question of the  effect the bus standard has on graphics performance. This question is a very difficult one.  On the face of it,  a graphics board requires a large amount of data to be transferred  at high speed and   therefore a 32-bit MCA or EISA  bus 

If you do need the increased resolution, i.e. beyond 1024 x 768 in 256 colourss for applications such as  DTP, CAD or  any graphics –dependent task, then your choice is  between an  intelligent controller or a specialized A4/A3 monitor. Which you chose  depends on your budget and you need for  colours.

Find many DTP and some CAD         applications colours is  a luxury and so an A4/A3 monitor is cheaper and more suitable. If you need  24-bit colours then an EISA or MCA based machine is preferable.

Exactly which model of graphics adapter you should  choose  will obviously  depends on how much you can  afford to spend,  but the most  crucial issue is the  existence of a working and  up-to-date  driver for the  applications that you  want to use.  Without a software driver  all of the super  features, speed and excellence of a graphics board are pointless because you cant use them.

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