According to Chuck Moore, Corporate Fellow and CTO Technology Development of AMD, the new Bulldozer X86 architecture has “two tightly linked cores.”

If you look at the picture above, posted in Chuck's presentation, Bulldozer has two quad cores with an integer scheduler and the two cores share two FPU 128bit FMAC schedulers.

Each int scheduler quad has its own L1 cache that talks with L2 shared cache used by both cores and FPU units and finally, the last layer has Shared L3 cache as well as Nortbridge support. (You lost me at 'each'. sub.ed.)

This CPU will be designed to easily interconnect with graphics, but such a product probably won't launch before 2012. AMD claims Bulldozer and Bobcat are two new x86 cores targeting different usage models.

"Bulldozer will be a completely new, high performance architecture for the mainstream server, desktop and notebook PC markets that employs a new approach to multithreaded compute performance for achieving advanced efficiency and throughput. Bulldozer is designed to give AMD an exceptional CPU option for linking with GPUs in highly scalable, single-chip Accelerated Processing Unit (APU) configurations. Bobcat will target the low power, ultrathin PC markets with an extremely small, highly flexible, core that also is designed to be easily scaled up and combined with other IP in APU configurations,” claims AMD.

AMD didn’t save its breath to attack Intel for stitching two cores together, and in two years from now, it plans to stitch two cores that will share some parts. As far as we know 8-core Nehalem EX can get to 8 native cores even at 45nm and we are quite sure that for late 2010 Intel plans to launch an 8-core 32nm Westmere based CPUs.

AMD plans Bulldozer for desktop and server market in 2011.