I assume what is already the better deal just saying cooling wise, if the first is better or the second cooler.
More aboutconcerning cooler read
Depending on how much OC'ing your gonna do
Hyper 212 Plus and Hyper 212 EVO are good option for light and Medium OC
CM 612 if your going to be doing high OCing
ah... so the 512 is considered sub par and obsolete thanks to the hyper 212+ and evo. even with that rebate. priceless. Thanks for your info, I plan on overclocking in the future the 212+/evo looks to be it, therefore i may even just get the 612.