You'd think that Sapphire, like all other AMD partners, would eagerly launch its overclocked version of the Radeon R9 270 card, but that's not happening.
Sure, the company has launched a Radeon R9 270 (it's even wearing purple for you now), but that one sticks to reference clocks.
Which means that the GPU runs at 900/925 MHz Base/Boost, but everything else is the same as on the original (1,280 cores, 2 GB of 5.6 GHz GDDR5, 256-bit interface).
At least the cooler is different, with a pair of fans and a black-and-grey color scheme.
The OC variant of the card should come out soon, but I'm not exactly sure what 10% overclock means. 90 MHz overclock would outdo everything I've seen so far (50 MHz has been the maximum up to now).