Personally I would upgrade to the sabertooth only if your really looking to push that cpu otherwise it's not going to be a huge factor.
But if you do go sabertooth then the case needs to support ATX
Quote (Ghot @ Jun 8 2018 04:55pm)
/e As for the Hyper 212 EVO, generally it blocks only the RAM slot closest to the CPU, which in most cases, isn't used anyways.
In his case he's going to be using the ram slot though...
Even still as stated before its when the fan is in a push configuration and only when its 100% lined up with the heatsink.
This is while not even considering the profile of the ram which may or may not even make it an issue.
He'll be fine with an evo 212 just needs to adjust it in worse case scenario.