Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!csc.ti.com!ti-csl!m2.csc.ti.com!tilde.csc.ti.com!skbat!dittman From: dittman@skbat.csc.ti.com (Eric Dittman) Newsgroups: comp.sys.amiga Subject: Re: Amiga Competitiveness. Message-ID: <140.27078573@skbat.csc.ti.com> Date: 1 Oct 90 23:05:39 GMT References: <1990Sep28.193008.6137@sisd.kodak.com> <1990Sep29.081216.17970@assari.tut.fi> <1990Oct1.132509.8967@sisd.kodak.com> Organization: Texas Instruments Component Test Facility Lines: 37 In article <1990Oct1.132509.8967@sisd.kodak.com>, jeh@sisd.kodak.com (Ed Hanway) writes: > I stand by my original assertion that slight speedups are only noticeable for > lengthy operations. It turns out that ray tracing and Mandelbrot calculations > happen to be good examples of applications that do benefit from slight (<50%) > speedups. > > Ed Hanway > uunet!sisd!jeh Ed, I'll have to agree with you here. I don't own an Amiga, I'm a Macintosh owner, but my experience applies. I started with a Mac Plus and later bought a Mac II. I could perceive a speed increase going from the Plus to the II. Later, Apple brought out the IIx, with a corresponding speed increase of 15%. I played around with a IIx, but didn't upgrade because I couldn't see any speed increase when I used one. I didn't have a II and a IIx sitting side- by-side, but that doesn't matter; I could see the speed increase of the II without having the Plus beside it. Now, Apple has the IIfx. I could see the speed increase (which is substantial) without a side-by-side comparison, so I upgraded (plus, for once, Apple made the upgrade at a low cost). Also, speeding up the CPU doesn't matter that much if you don't speed up the rest of the system. There is a 16MHz 68030 upgrade for the SE and Plus that don't increase the overall speed by more than 10% or 15%. Of course, the upgrade is sold only to provide access to 68030 features like VM in anticipation of Apple's System 7, not as an accelerator. The rest of the Mac Plus and SE operate at 8MHz (approx.), and the memory bus width is still 16 bits. A 16MHz 68000 in an Amiga 1000 would give about the same speed increase, because the rest of the system would still be at the old clock speed. Eric Dittman Texas Instruments - Component Test Facility dittman@skitzo.csc.ti.com dittman@skbat.csc.ti.com Disclaimer: I don't speak for Texas Instruments or the Component Test Facility. I don't even speak for myself.