Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!uunet!mcsun!ukc!acorn!asmith From: asmith@acorn.co.uk (Andy Smith) Newsgroups: comp.sys.acorn Subject: Re: ARM3 spec changes Message-ID: <7333@acorn.co.uk> Date: 29 May 91 07:52:07 GMT References: <10615@castle.ed.ac.uk> Sender: asmith@acorn.co.uk Distribution: comp Organization: Acorn Computers Ltd, Cambridge, England Lines: 20 In article <10615@castle.ed.ac.uk> gtoal@castle.ed.ac.uk (G Toal) writes: >I suspect this is true. I bought a 540 and was surprised that it didn't >run a particular program at quite the speed that Les Currell was claiming >for his home-made Arm 3 upgrade. I suspect the 540's as sold aren't >running at maximum speed; ?? This is strange. Tests we have run on 440/1's with Aleph one ARM 3 cards and 540's, show the 540 to be faster. This is mainly due to the faster memory speed in the 540. I havn't seen Les Currell's claims, but I doubt a 400 machine could match a 500 machine (though I'm open to proof). I don't know what the official word is, but I wouldn't buy an ARM 3 upgrade spec'd at over 26Mhz now, as VLSI don't sell them. These tests were done with a very complexed draw file, and are nothing to do with Acorn's official testing of machines. >Graham Andy