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Performance Differences between the MPC8240 and the MPC106 Top Changwatchai and Roy Jenevein risc10@email.sps.mot.com This paper discusses some of the major performance differences between the MPC8240&OTIlde;s memory and PCI interfaces and those of the MPC106. This document compares theMPC8240 (rev. 1.0) the MPC106 (rev. 4.0). It contains the following:¥ Part 1ÒArchitectural Differences,Ó discusses architectural differences between the two parts which impact performance.&NTIlde; The MPC8240 offers faster memory and PCI buses and features PCI datastreaming capabiliTIes. &NTIlde; The MPC106 supports an external L2 cache, but this may result in lower memory bus speed.¥ Part 2ÒSimulation,Ó presents results from an analytical model used to compare various system conÞgurations which highlight these architectural differences.
