Let's face it, if Samsung had its name on the silicon instead of MediaTek, even the Vatican would be placing a call to Korea, congratulating Samsung for the achievement. As it is, MediaTek is becoming known, but for selling low priced chips to phone manufacturers trying to compete in emerging markets. By purchasing chips from MediaTek instead of Qualcomm, handset makers are saving big money. The reason why MediaTek can sell chips for such a low price is because it does not own a fab that needs to be maintained. The company already has a better than 50% market share for low and mid-range chips for mobile phones and with the octa-core MT6592 leading the way, the company could soon overtake Qualcomm to become the largest handset chip maker.
The big thing for MediaTek is to get some major OEMs, the ones that normally wouldn't touch a MediaTek chip for a top-shelf model, to give the MT6592 a shot before other chipmakers start offering a true octa-core processor of their own. The MediaTek chip is being sent out to potential customers now for them to sample, with mass production scheduled in November.
source: MediaTek via AndroidAuthority