I still have the HD7950 from my original build so I'm in need of a new GPU but I haven't been paying close attention to GPUs for a while. I'm looking at the 1660TI possibly but idk if 6GB VRAM is good enough to play modern/future games. I play at 1080 but will eventually be stepping up the res. Will the 8GB 590 hold up longer because of more VRAM? I would like to stay around $300 but could spend more if there was a much better option for a little more. Any thoughts?