"This is the first time FrostyTech has looked into Apack's consumer-grade heatsinks, but it's evident that the company has been heavily involved in the OEM industry for the past several years; both in notebook thermal solutions and high density server processor cooling.

The Apack Zerotherm BTF90 and BTF80 heatsinks are the companies' first consumer class heatsinks for the AM2 platform, and in spite of the kitschy 'butterfly' shaped cooling fins the BTF90 is surprisingly effective. The 678 gram Zerotherm BTF90 is an all copper heatsink which is designed to function with socket 775 Intel Pentium D/Core 2 Duo, and socket 754/939/940/AM2 AMD Athlon64 processors. Socket 478 CPUs are not supported."