Shawn Walker wrote:
>> On Pentium M class processors, cpuid with %eax set to 0 returns >> 02H/80000004H, >> which is identical for Pentium 4, Intel Xeon and Pentium M. For all practical >> purposes, these three processors are indistinguishable from each other. >> >> For Pentium 3, cpuid returns 03H. >> >> Therefore, Pentium M identifies itself as a Pentium 4 class processor, and >> not >> Pentium 3 (which does not return the Extented Function Information). > > Pentium M may be Pentium 4 class, but as I mentioned, has very > different performance characteristics. > > The Pentium M is based on the Pentium 3 architecture and includes some > tricks from the P4 as well. > > More here: > http://arstechnica.com/articles/paedia/cpu/pentium-m.ars Yeah. How about relying on what the CPU itself says it is, rather than what some online magazine thinks the CPU might be. --Stefan -- Stefan Teleman Sun Microsystems, Inc. Stefan.Teleman at Sun.COM
