Look out, Intel -- six cores are mightier than four, don'tcha know? Shortly after introducing a six-core processor in the server sector, AMD is reportedly angling to issue a hexa-core chip over on the consumer side. The chip maker has confirmed to Maximum PC that a six-core slab of silicon (codenamed Thuban) will be released in 2010, with the real kicker being that it'll be fully backwards compatible with existing AM3 and AM2+ mainboards. It'll be based on 45nm process technology and will boast an integrated DDR3 controller, 3MB of L2 cache and 6MB of L3 cache, and while the outfit wouldn't confirm, wo