On 16/04/2018 16:54, Gerrit Heitsch wrote: > > The 6502 comes in different flavours: > > 6502 1MHz > 6502A 2MHz > 6502B 3MHz I wonder what they called the 8MHz chips? In there we found a hint at this story from Brian Bagnall's On The Edge: """ Although Commodore ran their computers at 1 MHz, Charles Winterble claims they were able to achieve faster speeds with the 6502." We thinned the oxides down and we intentionally did some very high speed versions of that," says Winterble. "One thing MOS [Technology] had going for it was a really good quality oxide. By thinning these gates down, we were able to drive it faster and faster. Then we did selection, in terms of our testing, to pull out the fast ones. We actually made a couple of really hot processors for a chess tournament for somebody. He literally water-cooled it, and he ran it at something like 8 MHz. It was just ridiculous how fast he ran it."Received on 2018-04-16 23:00:02
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