I mean, for a long time the situation was reversed.
Huge gaming demand and easy retail availability of nvidia's cards was providing economies of scale. If a few professors were buying the GeForce 8800 to look at this new 'CUDA' thing that was mostly a marketing thing.
Around the same time there were also one or two Playstation 3 clusters - but a year or two later Sony removed support for that. HPC being inconsequential, and a distraction from their core business, presumably.
It's only in recent years the stuff that used to be marketing decoration has become reality.
Huge gaming demand and easy retail availability of nvidia's cards was providing economies of scale. If a few professors were buying the GeForce 8800 to look at this new 'CUDA' thing that was mostly a marketing thing.
Around the same time there were also one or two Playstation 3 clusters - but a year or two later Sony removed support for that. HPC being inconsequential, and a distraction from their core business, presumably.
It's only in recent years the stuff that used to be marketing decoration has become reality.