I'm looking to build a computer for solving protein-folding and number crunching problems - and the best bang for buck on these problems is using an AMD Graphics card (e.g. 79xx or better).
The thing is each of these takes up a PCI-e slot. What is the best combo for running (say) 4-6 of these off one machine? I'm guessing each will be about 200 watts, will it be cheaper to split the job into several machines each with their own mobo and power supply?
Can I use some sort of PCI-e splitter/riser? The bandwidth needed for these number-crunching problems isn't as great as actual graphics, so it wouldn't need a full slot's usage, just the pins and connector, plus power.
Are you thinking of mining coins?