Specifications of Oland and Bonaire GPUs have been leaked by Chinese website PCOnline.
AMD Radeon R9 260X
The R9 260X is a HD 7790 rebrand, just as we’ve reporting for few weeks already. It is equipped with Bonaire XTX GPU which has 896 cores, 56 texture mapping units and 16 ROPs. The core clock is 1100 MHz and memory clock is 1625 MHz (6.5 GHz). Card is using 2GB GDDR5 memory across 128-bit interface.
AMD Radeon R7 240 (+280X GPUZ)
The mysterious Oland GPU has been finally revealed. Turns out it has 320 Streaming Multiprocessors, 20 texture units and only 8 ROPs. The clocks are pretty much the same as in my previous entry about this model. Core clock is 780 MHz, leaving 1000+ levels for R7 250. The memory runs at 1150 MHz. This card will be offered in two variants: 1GB GDDR5 and 2GB DDR3. Of course these are the clocks of GDDR5 model.