Thanks for that,
But why would you do that, wouldn't be better to buy a better card in the first place !!!!
Ned
Why do we have dual core machines, wouldn't it be better to have a faster processor?
by which I mean, the reason we have dual core machines is because
A:) not all problems can be solved quickest sequentially
B:) the clock speed of most modern CPUs are starting to approach a number of scientific barriers.
In the same vein, GPUs and their cost/performance tradeoff can sometimes make buying a second card and SLI or Crossfiring it with your current card give you more "bang for your buck". Think of it as merely opening yet another set of upgrade options.
For example, if you had, say, a 9500GT, you could replace it entirely with the latest spanker, or, you could buy a second 9500GT for a significant savings, and almost double your performance in most games. It depends entirely on ones funds and what they want to do- sometimes using crossfire or SLI is a good idea, sometimes it can be a better idea to simply get a newer card altogether.