Charts for February UPDATED TODAY! What's The Best Heat Sink? Good Question. Frostytech's Top 5 Heatsinks Charts rank the best coolers by lowest temperature, lowest noise and low profile. HOW IT WORKS: The #1 Rank is considered the current Top heatsink for that parameter, #10 is considered the 10th BEST for that parameter. Only heatsinks that Frostytech has tested in its labs are included in these Top 5 lists.