4.
That big heatsink isn't really so big - it looks about 9800XT sized. Heat production is a function of transistor count and voltage as well as frequency, too, so the core frequency might not be as high as you think - the large R420 core has a lot of transistors on it. I expect the core frequency to be pretty good, though.
Also, GDDR3 operates at a lower voltage than DDR or GDDR2, so it's probably pretty darn fast memory that simply doesn't get too hot.
It's good to see ATI is ahead of the game when it comes to the number of power connectors required - it looks as though I could put one of those in my present machine quite easily, even if it needs a power rail to itself. NV40's requirements or *two* dedicated power rails are just plain silly by comparison.
[Posted by: Chromatix | Date: 04/25/04 12:34:13 AM]