Intel i5-6600k + Intel Iris Pro 530

[farfromrefuge]

I am planning a slim HTPC build and I do not want to add a videocard to it. So I wanted to ask here, if Iris Pro 530 would be enough for Dolphin? I am looking for 1080p performance, which would mean somewhere around 3xIR, right?

Second question - are HD-textures GPU or RAM heavy? I want to use Wind Waker HD-texture pack.