The chips are based on the "Kaveri" design and are designed for overclockers on a budget.
The APU has four "Steamroller" cores (two dual-core modules) operating at 3.30GHz/3.90GHz clock-rate, 4MB L2 cache, AMD Radeon R7 graphics engine with 384 stream processors, a dual-channel DDR3 memory controller, unlocked multiplier and up to 95W thermal design power. The chip will be drop-in compatible with FM2+ mainboards.
AMD will officially start to sell its A8-7650K on the 20 February, 2015. In Japan, where prices are traditionally a bit higher than in the rest of the world, the APU will cost $117.
The new chip is slower than the company's A8-7700K, which AMD discontinued late last year. That said, it is not completely clear why the company decided to replace an APU with a product with lower performance and did not just drop the price of the A8-7700K.
Later this year AMD plans to release a family of A-series APUs known as "Kaveri Refresh" and "Godovari" which will have higher clock-rates.