Xigmatek Gaia versus Hyper 101

I'm having my first custom computer built, some of the components I understand, others I have no idea 0.0 one of them is cooling.

So last minute the guys who are putting it together for me switch out a Xigmatek Gaia for a Hyper 101, apparently they're the same price (since it seems the Xigmatek didn't fit) but I'm concerned about performance. I can find individual reviews, but nothing for comparison.

Does anyone have any advice or idea about the comparative performance of these two coolers?