FrostyTech has posted a review on the Thermal Integration TI-S86-15 Heatsink

The TI-S86 and the TI-V86 are virtually identical save for one very important aspect. This heatsink, the TI-S86 is all aluminum while the TI-V86 employs the use of a solid 20mm copper core to increase thermal spreading to the aluminum fins.

With two almost identical heatsinks you might be tempted to draw conclusions about how much of a difference in performance there is between them. Realistically speaking the copper slug in the TI-V86 can only account for a percentage of the overall cooling capabilities, and this is indeed the case. Where the TI-S86 picks up is in lower weight and lower manufacturing costs.

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