Stefan Mileschin

If you need a heatsink that can fit in tight spaces, the crew at NikKTech say the Cooltek LP53 Low-Profile CPU cooler might be just right for the job. Although both the ITX30 and the LP53 have the same TDP (thermal design power) of 100W the LP53 is quite taller (53mm as opposed to the 30mm of the ITX30), heavier (410g/300g) and comes with a larger 92mm fan (compared to the 80mm one of the ITX30) so since we don't think that Thermolab does things at random it's obvious that the L53 is placed a tad higher than the ITX30 in terms of cooling efficiency.

http://www.hardocp.com/news/2014/07/...le_cpu_cooler/