12-core opteron from HP
HP listed the DL385 G7 servers with 2x Opteron 6100 series processors, each containing 12 cores. This makes the DL385 a 24-core monster, with 256GB of RAM. The Intel based DL380 G6 only has 2x4 cores, and is limited to 192GB RAM.
It is also interesting to note that the 24-core Opteron box needs only a 460 watt power supply, while the Intel based DL380 G6 needs a 750 watt power supply for 2.53GHz and higher models.
Not to be left behind, SuperMicro announced a 1U server with 48 Opteron cores, and 2U system with 96 cores.
Significantly, AMD has eliminated the 4P tax. The "Many-Cores" Opteron CPUs are priced the same for 2P or 4P. This will be a major thing. It will make 4P more popular.