If you can find it for sale, the SilenX IXG-80HA2 VGA cooler with the optional fan kit can give you a significant boost in performance or a reduction in noise.  Made to fit almost any of the new cards from AMD and nVIDIA, in Think Computers testing it at full speed allowed them to increase clock speeds by over 30% and still kept the temperatures below the stock cooler at factory speeds.  For those who are simply sick of hearing the noise generated by their HD4870 or other card, the low and medium settings on this cooler enables silent running, while still keeping the temperatures below the stock fan.  Take a peek at it here.

“Today I will be looking at the SilenX iXtrema IXG-80HA2 VGA cooler. It has five heatpipes directly touching the GPU, a large fin array, and fits most single-GPU video cards built in the last couple of years. Though the cooler can be used passively in total silence, I will be adding SilenX’s optional fan kit, consisting of three quiet 80mm fans. The cooler looks like it should do a great job of cooling down a hot GPU, but will it make the trip? Read on to see!”

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