"Top down cooling has its advantages, though tower cooling is usually the preferred method given its compact footprint. In this review Frostytech is testing out a heatsink from Titan that aims to satisfy both tower and top-top heatsink designs, in one. The Titan Fenrir Siberia Edition TTC-NC55TZRB heatsink is built around five 8mm diameter copper heatpipes which extend in two directions from a copper base block to independent fin stacks, essentially making one large CPU cooler from separate 'tower' and 'top-down' heatsinks.
The Titan Siberia TTC-NC55TZRB heatsink is a novel approach whose aim is motherboard VRM and memory cooling as much as CPU thermal management, but to achieve this it occupies quite a lot of space. The Titan TTC-NC55TZRB stands 164mm tall, has a footprint of 140x225mm and weighs around a 1000grams. It's five 8mm diameter heatpipes are strategically bent up to provide adequate memory slot clearance, so in actual fact the footprint is more like 87x105mm, with a minimum 45mm z-height clearance beyond that."
