re: PC Discussion - Gaming, Performance and Enthusiasts

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Would it be possible to get a 390 when they come out here before too long and Crossfire it with this 290 or no?

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No, you can only crossfire cards within the same architecture. For example, you can crossfire a 7970 with a 280x because the 280x is just a rebranded and slightly overclocked 7970. You can also crossfire a 7950 and a 7970, or a 290 with a 290x, etc. The weakest card will be the bottleneck in that situation (e.g., 7970 and 7950 in crossfire will operate like two 7950s in crossfire). But the 290s are Hawaii chips, and the 390 will be Fiji.

However, I haven't been following the upcoming releases too closely, but it's possible that AMD will continue the trend of releasing new-gen flagship cards and rebranding their last-gen flagships. So, a 290 might be relabeled as a 380, and the same rules will probably apply.

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At 1440p be better off getting a single 390 and then just selling this 290?

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The 390x is supposed to have double the memory bandwidth of the 290x, so I'd say it's probably going to be a monster 1440p card. Either way, I don't recommend crossfire 290s. Crossfiring Hawaii was the buggiest crossfire experience I've ever seen.