UPDATE: Well that didn’t take long, link is no longer valid.
Hardware.info leaked some charts from yet unreleased Radeon R9 290X review.
There’s a lot of data to process, since their charts include almost every possible GPU configuration. That said, for the sake of clarity I had to do some cropping. Not all charts were included,
but you can find them by following the link at the top.
Please do not hotlink to images, use 3rd party image hosting.
Commentary to results
I’m not sure if all these charts include final data, but if they do, then we have some mixed results. Sometimes one R9 290X can beat SLI or CrossFire configurations, sometimes it’s slower than R9 280X. One thing is certain though, this card will consume a lot of power (you can find these charts at the very bottom).
Here are some charts from PurePC (red bars are obviously for R9 290X)