it's right before the launch of the AMD R9 390x in a month or two, but i just got a Sapphire Vapor-X OC edition 4GB R9 290 because it was cheaper than the Nvidia 980 which is about to get the Ti edition. i wanted to get the 290x 8gb but they've apparently silently discontinued it(in stock nowheres, one store said it was discontinued). should i have waited? should i have instead gone for 2 because one is bad or something?