LG has all but confirmed rumors that it's working on a quad-core Snapdragon S4 Pro-powered LTE smartphone, with the launch of a new campaign of Korean language teaser videos. The first video, which is pretty impenetrable if you don't speak Korean, indicates that the new Optimus smartphone will indeed run a quad-core S4 Pro chip, which LG touts as being much faster than the quad-core competition. Also touched upon is the S4 Pro's advanced Adreno 320 GPU, which delivers faster graphics performance than the current crop of chips, including the Adreno 225 GPU used in dual-core S4 chips.

There's nothing to show of the actual phone yet, but LG is clearly hoping to make a splash with this quad-core beast in the fourth quarter, and we'll be watching with keen interest.

Source: LG (Korean), via: The Verge