At a price level of $179, might as well get a brand spanking new 3g 1060 or 4g 470. The 470 and 480 are very close in power.
Edit: To clarify the recommendations: the 1060 is around the 980 mark, the 3gb version of it is slightly less powerful, but still roughly the same mark around the 980. The 480 is close to the 970 in DX11, but closer to the 980 in DX12.