they seem less loud to me
think it's a good design
1) I don't think of HIS as one of the better brands for buying AMD GPUs. ASUS, Gigabyte, Sapphire, and MSI are the best. I stay away from XFX, Diamond, VisionTek, and HIS. We've got some PowerColor ones that are decent, but they're a reference design, so not much difference there.
2) HIS hasn't made any of those blower turbine coolers in a while. Now, they're all the IceQ X2, which is a pretty standard twin axial fan setup.