The chipset itself might be manufactured by TSMC, which is responsible for a wide array of chips - Apple's A8, for example. No new information about the chipset has come to surface, so we will have to guesstimate about the parameters of the silicon. We've previously heard that the Odin might comprise four 2.2GHz Cortex-A15 and four 1.7GHz Cortex-A7 cores, which means that the Odin might rely on the big.LITTLE power-saving technology.
Up until now, LG has solely relied on Qualcomm for bringing its mobile devices to life (NVIDIA has also made a brief entry on certain LG products before), but things might very soon change as the manufacturer is allegedly poised to become a little more independent in the hardware department. The Odin SoC has been tipped to make an appearance on most of LG's high-end phones over the past year or so, the LG G3 included, so take this rumor with a pinch of salt.
source: dt.co.kr (translated) via Android Authority