I believe it was the "famous" AMD citizen-bundle pack from 2015 and it was including R9 380/390 GPU´s....with some in game detail-tweaking this cards are still strong enough to push SC beyond fidelity-border and can provide you glorious 20 FPS all day long!!!
One of the technological advances at this year's Gamescom was the frame rate. I'm pretty sure it broke the 15 FPS barrier a couple of times.
I'm another £23 investor. While a lot more expensive than free, it does give me the opportunity to log in to the game and have a private giggle about how truly, groundbreakingly, mind-numbingly awful it currently is. The only goodish bit is the graphics. I'm willing to leave my £23 at risk for now, although I don't expect to see 3.0 this year unless they cut back even more on its features. Unlike all those people arguing about whether development started in 2012 or 2014, I don't believe development has started at all yet. They're still working on prototypes.