How much more is the 6GB 1060 where you are? For long term, the 4GB 470 would be the better buy at the same price point just based on your "ultra wide" resolution, whatever that is. But in direct comparisons at 1080p, even the 3GB 1060 beats the 4GB 470. History has proven however that AMD GPUs remain stronger performers over time than Nvidia GPUs (and I'm an Nvidia fanboy). The 6GB 1060 is a steal for the price if you can swing the extra scratch to buy one. Especially since newer games like Dues Ex are requiring more GPU VRAM. Even at 1080p these days 3GB is going to be outdated real soon.