The first thing we need to talk about is the overclock we got. Like you probably are, we're disappointed with how high we got - or how high we didn't get. We really hope voltage adjustment gets thrown into the mix soon as it should really give the 290X more breathing room on the core. Considering this is something we've seen for many generations now, we find it hard to believe that it won't be coming with the next version of Afterburner. If it does show up, we'll be of course retesting the AMD R9 290X 4GB straight away.
We've had the luck of testing CrossFire R9 290X 4GBs thanks to HIS; keep an eye for that in the next day or two. We won't be looking at the overclocking side of that just yet because we feel without the voltage adjustment option, the performance change won't be major, and it's ultimately going to be a waste of time.
Again, though, if we do get voltage adjustment like I feel we will, then we'll be seeing just what we can get out of the single card solution and the Crossfire setup. We really look forward to seeing what a company like MSI does with the 290X. We hope they slap the Lightning tag on it and really give the card some more breathing room with their Military Class components and triple voltage overclocking option goodness.
While at the moment the NVIDIA offerings allow much more overclocking headroom due to the ability to adjust the core voltage, the simple fact that this card remains $100 cheaper than the base GTX 780s means that it's just so attractive.
For now, though, keep an eye out for our upcoming CrossFire article and we'll continue to keep our ear to the ground with the hope that the next version of MSI Afterburner really opens up these new AMD Radeon video cards.