Design and Functionality

Thermalright Ultima-90I measures 115 x 55 x 139mm and weighs 460g. It has a classical tower design: two rows of six copper heatpipes piercing the heatsink array of 48 aluminum plates:

The plates are ~0.25mm thick and the gap between them is 1.5mm:

Our regular readers should already be familiar with this heatsink design, because we have already discussed two higher-end cooling solutions from Thermalright Ultra-120 series with identical heatsink design concept. If we compare our today’s hero against those two, we have to say that the heatsink of Thermalright Ultima-90I is 21mm shorter, 17mm narrower and has 8.4mm smaller depth. Besides, Thermalright Ultima-90I weighs 285g less than Ultra-120 and 330g less than Ultra-120 eXtreme. By the way, 6 copper heatpipes with 6mm diameter make Thermalright Ultima-90I more similar to the latter, Ultra-120 eXtreme. The entire heatsink is nickel-plated and all its parts are soldered together.

The sides of the heatsink are open:

The top plate has no embossed logo, like the top models. Everything is very strict, without any decorations that could exceed the “budget”: