Apparently a company called Oakville Mehlville Computers in the USA is offering to sell 12-core (physical) AMD Opteron 6174-processors on eBay in tray's of four. These puppies are yet to be released by AMD and are clocked at 2.2 GHz.

These processors are tied to an unavailable (in retail) socket G34, which Oakville Mehlville Computers does not offer. The 12-core processors would have 12 physical CPU cores and a shared L3-cache of 12MB. Each core also would have 512KB L2 cache. The processors are capable of running DDR3 memory at 1333 MHz.

You guys have heard about these processors under codename Magny-cours. According to the eBay post, these are retails samples .. not engineering samples.

Well, if you have 7000 USD to spare, they are sold in a tray of four, yeah .. that would be 48-cores slapped on one motherboard. Here's a photo of the processors: