Hi there,
when it comes to CPU coolers there is a big choice out there and it can be a bit confusing finding one that a) you like and b) does the job. Having looked at both of the coolers they are pretty similar in design and both use a retention clip to mount on an AMD system. This has an advantage over some others in that, you don't have to remove the motherboard when it comes to mounting them.
Either will do what you want but if I were buying I would probably go for the Corsair but double check the measurements to make sure that it will fit in your case and won't cause a problem for your RAM modules.
Of course, another option might be to just replace the fan on your existing cooler.