Why Motorola stays in the land of Macs instead of jumping the fence and competing with AMD and Intel in the world of less candy-coated computing is a mystery. It probably has to do with the fact that computer CPUs aren't the company's bread and butter, but signing up to make chips for Apple seems to give Motorola an undeserved lack of respect. Motorola's latest are the silicon-on-insulator (SOI) fabricated MPC7455 and MPC7445 processors, with the MPC7455 implementing the PowerPC instruction set architecture to ship at 1 GHz speeds. Designed to be pin-compatible with Motorola's MPC7451/MPC7450 in a 484-pin CBGA package, the MPC7455 reaches speeds of 1 GHz with a core voltage of 1.6V and includes 256 kB of on-chip L2 cache with support for up to 2MB of backside L3 cache. The MPC7445, pin-compatible with Motorola's MPC7441 in a 360-pin CBGA package, is designed to deliver lower power consumption at speeds up to 800 MHz with a core voltage of 1.3V and 256 kB of integrated L2 Cache. Other features of the MPC7455/7445 include symmetric multiprocessing (SMP) support, 16 block address translation (BAT) registers, cache locking for the L1 caches for algorithms and code, and support of the L3 cache on the MPC7455. The MPC7455 is shipping today, and the MPC7445 is currently sampling. Suggested retail pricing for the MPC7445 at 800 MHz is $125 in 10k quantities. Suggested retail pricing for the MPC7455 at 1 GHz is $295 in 10k quantities.