I'm going to ROFLMAO if these benchmarks turn out to be fake

They seem too good to be true, and you know what they say about being too good to be true... Fake benchmarks always circulate before a new card is released.. You guys should know that by now, so don't put all of your eggs in one basket eh?

And correct me if I'm mistaken, but memory overclocking never had much of an impact on HD 5870 performance compared to overclocking the core..

So with that said, where does the assumption come from that the HD 5870 architecture is bandwidth limited?