This is the most impressive card from the 7xxx series yet! The numbers at 2560x1536 shows that 7870 is nearly on-par with GTX580! This accessment is based anandtech and tpu.
What impresses me the most the the tiny amount of power it consumes! It makes the previous gen cards look like gas-gussler (joule-gussler).
Looks like the efficient GCN core made the 7870 > 6970. Well done ATI!
Note: TPU, I think you guys need to re-run some of the 79xx benchmarks, I've noticed some results showed 7950 slower than the 7870.
So, should I wait for Kepler? Not really, because I have doubts that a GK104 can beat ATI with performance/dollar AND... NV's top gun (the GK110) is not due until much later (rumored to be in sept), so that means ATI is expected to lead for about 9 months.