Now you got my attention! NewEgg is asking $3K for one of those model K20. Assuming that we have one of those in our rig what kind of hashrate are we talking about? Is Cudaminer compatible with Tesla drivers or will it require mods?
I know a miner working with 8 Fermi based cards. These aren't much faster than the consumer cards. In fact they use lower clock rates.
But in sum this 8 card rig produces respectable hash rates (at a tremendous power draw).
The K20 would be about equivalent to a Geforce 780. And even this card is overpriced for a mining rig. If you don't already have such equipment in the lab, don't buy it for mining - way too friggin' expensive.
cudaminer works out of the box with such cards.
Christian