Again, disagree, I did a lot of testing with 980 and 980SLI with AH3, and neither could run the beta at max 60hz/fps 1080p, especially over large bases down low, without dropping well, well below 60fps. I realize it's early days, and that once at higher alt 144fps was pretty constant with the 980, but if the 980 was tough slugging at lower alts, the 970 will be even more so. You crank every setting including environment to max, at 1080p, not even 1440p or 4k, with a 970, and go fly at 1k over the large base with the drones. Then get back to me on your results, as I know what mine are, on 2 different pcs with 980, 980sli, and 980ti have been. And now, 1080SLI as well - I haven't tried flipping SLI off yet on the 1080 systems, but I don't think it'll make a lot of difference.
Will a 970 be "good enough" for AH3? IMO yes. But it's certainly not going to provide constant 60fps 100% of the time at 1080p, not yet at least from what I've tested.
I realize AH3 is more video card reliant, this isn't the first time we've heard this - haha- and that's the reason why I said if he was buying a new card for AH3, go with the 1080 over the 1070, as the difference from 970 to 1070 and the cost fraction considered doesn't make it worth it for Ah3/beta IMO, since based on my experience with the 1080SLI even THAT is being taxed and unable to provide constant max fps. The 1080SLI, even at low alt over busy/large bases, it's working VERY hard to maintain max fps, and drops below it still. I'm happy to provide film/screen shots of the fps counter with all the cards mentioned above.