So far so good - havent had any signs of instability yet, but ive only been tinkering for an hour. In something like 3d11 it has no dramas at 2075 (so obviously I'll push for 2100) but in firestrike extreme it's pegging back to 2062 and even 2038.
Dont get me wrong, 3,584 cuda cores > 2000Mhz is suitable for my needs, but the power management seems to present a fairly hard limit with even a modest overclock. I think with the stock blower it was topping out at about 1900Mhz when left to its own devices. Guess I could flex the fan curves on the radiators to try and bring the core temps down but my observations are consistent with tomshardware - power likes to sit around 112% regardless.
My firestrike results are similar to those posted above, albeit i have a slightly lower cpu ratio.
http://www.3dmark.com/fs/12027049Edited by mshagg - 3/17/17 at 7:14am