Looks milled to me anyway. Also maybe Swiftech is lying.
Quote:
Originally Posted by Swiftech's Site
The CNC machined C110 copper base plate is at the heart of Apogee's cooling efficiency. The Patent Pending Diamond Pin Matrix was optimized using Computational Fluid Dynamics analysis to yield the remarkable results recorded by the water-block. In the process, thickness of the base was reduced to 3mm. This resulted in a higher compliance of the base with its mating surface (i.e. the CPU heat spreader) thanks to the base plate added flexing ability.
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