From the freescale website: (link)
Quote:
MPC8641D Dual Core Processor
Freescale has leveraged its expertise in building high-performance PowerPCâ„¢ processors and highly integrated communications processors to design the MPC8641D Dual Core Processor. This processor integrates two e600 PowerPC cores, two memory controllers, Ethernet controllers, a RapidIOâ„¢ fabric interface, a PCI Express I/O interface, and a high performance MPX bus that scales to 667 MHz. It's one powerful processor, but it doesn't break the power budget starting at 15 Watts.
The MPC8641D supports flexible software implementations: symmetric multiprocessing (SMP) and Asymmetric multiprocessing. With SMP, one operating system runs on both cores, but from a programming perspective, it appears that the developer is writing a program for a single core. With Asymmetric multiprocessing, two instances of the same operating system or two entirely separate operating systems can be run on the two cores, largely unaware of each other.
@bbrv:Freescale has leveraged its expertise in building high-performance PowerPCâ„¢ processors and highly integrated communications processors to design the MPC8641D Dual Core Processor. This processor integrates two e600 PowerPC cores, two memory controllers, Ethernet controllers, a RapidIOâ„¢ fabric interface, a PCI Express I/O interface, and a high performance MPX bus that scales to 667 MHz. It's one powerful processor, but it doesn't break the power budget starting at 15 Watts.
The MPC8641D supports flexible software implementations: symmetric multiprocessing (SMP) and Asymmetric multiprocessing. With SMP, one operating system runs on both cores, but from a programming perspective, it appears that the developer is writing a program for a single core. With Asymmetric multiprocessing, two instances of the same operating system or two entirely separate operating systems can be run on the two cores, largely unaware of each other.
This processor is AWESOME! You should seriously consider using it in your next Pegasos board: ddr2 controllers (on the processor!) and PCI-Express I/O interface and 50% MIPS/Mhz increase! Without breaking 15W!
The 7448 could substitute the G3: with its ~10W at 1.4Ghz it could easily run without dissipator at slightly lower frequencies...
And read about asymmetric multiprocessoring... Two OSs running at the same time!
