Coming off 2GB I said 6GB would be the minimum for my next card. I've had VRAM issues at the end of my last few cards lives. 460GTX 768MB and 7870 2GB. I wish I would have got the 1GB 460 and the 3GB 7950 instead. I'm still leaning heavily towards the 8GB 1070 atm. If 480 AIBs hit a decent price soon I might consider it's lower price and only keep it a couple years.
This is kinda where I'm at in my thinking for my primary rig. The 1070 is looking mighty nice once they're actually available at or below MSRP (this paper launch BS is increasingly frustrating). I'm only half joking when I say by the time I can find the AIB model I want at MSRP, Vega will be shipping.
Meanwhile, I'm split on what GPU I'm going to put in my secondary HTPC. It's hooked up to a 1080p 65" Vizio. I don't plan to upgrade my main TV to 4k for at least another 2-3 yrs (I figure why bother until HDR, Adaptive Sync, etc...are standardized in mid-range sets). So, its down to the 480 and 1060 AIB models to hold me over until my next big TV upgrade (leaning OLED but wary of burn in).
Once both are plentiful and available at or below MSRP I'll pull the trigger. Right now, I'm most interested in the Sapphire Nitro 480 and Zotac Amp! Edition 1060. I'll wait for official benchies on 1060s, but the latest leaks today seem to indicate it performs slower than 480, which is contrary to what most in here have been expecting.
That said, perf/watt efficiency and gaming temps/noise are more important for my HTPC than raw performance. Assuming the 480 and 1060 are +/- ~10% from each other, I care more about real world peak/sustained gaming TDP and case temps.
Which is why, to my preferences for this application, the 480 reference cards are a bit of a disappointment.
The silver lining seems to be that there are many reports of 480s undervolting while holding stock 1266Mhz speeds or even overclocking, while dropping power draw down into the ~125W range (which is where I expected the 480 would be at default). Although I don't want to play the silicon lottery with reference pcb/blowers, my hope is a good AIB like the Nitro may be able to provide a better chance of achieving that nice undervolt/stock clock state = cool/quiet.
If not, I'll go with a 1060 unless it's performance is a disaster.