"With video cards now generating as much heat as some CPU´s, it´s no
wonder that there´s a market for aftermarket video heatsinks. While this
was happening, though, another trend has been arising: quiet computing.
The video card is a whole different beast compared to a CPU, though. You
can´t just slap on a mega-heatsink... unless you don´t need your PCI
slots. Zalman was one of the first to try and make a good passive video
card heatsink that didn´t intrude into another PCI card´s real estate. "