A picture allegedly showing the About screen on a refresh version of the HTC One, reveals that such a device will be powered by an octa-core processor and will include 3GB of RAM; if you want to get into the discussion about whose silicon will be inside, keep in mind that if you take past buying history into account, Samsung would be out which would leave MediaTek as the only possible choice...
Source: http://www.phonearena.com/news/HTC-One-refresh-model-with-octa-core-processor-and-3GB-of-RAM-said-to-be-on-the-way_id47717
Source: http://www.phonearena.com/news/HTC-One-refresh-model-with-octa-core-processor-and-3GB-of-RAM-said-to-be-on-the-way_id47717