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Author Topic: The new 68060 100mhz work on amiga?  (Read 4541 times)

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Offline Karlos

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Re: The new 68060 100mhz work on amiga?
« on: April 27, 2004, 01:06:02 PM »
It's a pity later amiga accelerators didn't go for SDRAM :-(

It irks me to think the old arch nemesis Atari has the CT60 cards :-)

Oh well. Not that a 100MHz 060 is any competition for an A1 or Pegasos ;-)
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Offline Karlos

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Re: The new 68060 100mhz work on amiga?
« Reply #1 on: April 27, 2004, 01:10:40 PM »
Well, I do have a .025GHz 68040. And a .24 GHz 603 :-)
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Offline Karlos

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Re: The new 68060 100mhz work on amiga?
« Reply #2 on: April 27, 2004, 01:59:02 PM »
@Nightshade737

The 060 does not use a multiplier (or rather it uses a multiplier of 1x).

It's not like PPC or x86 where the CPU speed can be mch higher than the bus.

So a 66MHz 060 has a 66MHz bus to the outside world (that includes the memory). Clock it to 100MHz and the bus is also 100MHz. The point is that existing accelerators aren't designed for these high speed signals. 60/70ns SIMM RAM simply won't operate reliably at 100MHz.

-edit-

Matt beat me to it :-D
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Offline Karlos

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Re: The new 68060 100mhz work on amiga?
« Reply #3 on: April 27, 2004, 03:43:37 PM »
I wonder if a CT60 board could be modified to work in an Amiga?

You can have your 100MHz 060 + SDRAM then :-D
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