Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!bellcore!att!chinet!mcdchg!ddsw1!ddsw1!point!wek From: wek@point.UUCP (Bill Kuykendall) Newsgroups: comp.sys.ibm.pc Subject: Re: 80386 memory expansion board needed Keywords: 16 bit memory on 386 bus question Message-ID: <[1370.4]comp.ibmpc;1@point.UUCP> Date: 11 Aug 89 05:00:09 GMT References: <35950@bu-cs.BU.EDU> <1540@crdgw1.crd.ge.com> Lines: 18 > <_ cycles -> < effective > >CPU MHz fast slow clocks waits >16 2 6 2.60 0.60 >20 2 8 2.90 0.90 >25 2 10 3.20 1.20 Well, my tests didn't include such impressive calculations, but 2 1/2 years ago when I first got my 16mz '386 (Intel MB) I did quite a bit of testing with 16-bit vs 32-bit memory running Desqview & Qemm to multitask benchmark programs. The bottom line seemed to be that 32-bit memory was nearly *4 times* as fast as 16-bit memory. Desqview and Qemm have improved considerably since then, as has the '386 architecture (with various caching and interleaving schemes) so perhaps my tests are no longer relevant. Bill Kuykendall ...ddsw1!point!wek