Thermalright Ultra-90 K8 CPU Cooler Review @ MTB
Snip: When enthusiasts and overclockers think of high performance CPU air cooling solutions, one name is mentioned quite often in the various forums and modding sites, and that name is Thermalright. With its largely successful line of XP series of coolers Thermalright has taken the lead in the aftermarket CPU cooling race. About a month ago Thermalright introduced two new CPU coolers called the Ultra-90 and Ultra-120 (soon to be released), which are similar in design to the passively cooled HR-01. Both of these coolers use heat pipe technology to transfer heat from the nickel plated copper base to an array of aluminum fins.
Full review @ MTB