Minimum system requirements for Far Cry 3 are 4GB of RAM (reminder that both Win7 and Win 8 use less than 512MB of RAM)
Epic, Crytek and Square asked for lot of memory. Crytek specifically asked for minimum of 8GB (and I would bet Epic wants that too, them being one that pushed Microsoft to increase RAM in 360)
As for 8 cores - bulldozers have 8 cores @95W TDP - if they use GPU similar to 7970m (basically mobile downclocked 7870 with TDP of 75-100W) I don't see problem with system's TDP, so why not...







