I've possibly raised this point in the past, but the goalposts have moved now with the release of the 760.
Now currently I'm considering replacing my HD 6850's as the graphic ram is starting to cause freezes when I run games like BF3 in Ultra.
Obviously with the new releases due this year/next year, I'm attempting to future proof it to some extent without breaking the bank.
Would the 760 be a good choice now? Seems to be doing well in reviews.