The thing is you actually aren't going to be able to overclock a 290 to reach that performance. These chips end up being more than just a OC'd 290 due to increased efficiency of moving to GloFlo. I have an XFX R9 290 DD Black Edition, which is factory OC'd with a custom cooler. It hits 94c. These 390X chips save ~30watts and 20-30 degrees over an OC'd 290X. Really the most disappointing thing is it not being GCN 1.2. Aside from that it being a respin is really a non-issue. It competes really well vs the 980, at a lower cost, while being compatible with the most meaningful DX12 functionality. That said it would probably would be more worthwhile for anyone with a 290(X) already to pick up a 2nd at a much lower cost now.