SK-7 and SLK-800 difference?

[GHoosdum]

What is the difference between these two heatsinks besides 14 dollars? How much better does the SLK-800 cool given the same fan on both heatsinks? Is it really worth the added cost?

[Gargoyle]

The 800 is taller, I think that's about the only difference. I have the SLK-800 and I'm really, really happy with it. I'm sure the SK-7 is nearly as good, and for that price, it's a great deal. If I buy a heatsink for one of my other rigs, it would be a SK-7. I'm actually thinking about getting one for IC11 so I can put on a 80mm fan.