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To: cordob who wrote (39884)4/14/2000 8:15:00 AM
From: Ian Anderson  Respond to of 93625
 
I think you are correct.

I worked with 286 parts when they were first second sourced by AMD. I think the point when the relationship soured was in 1984-5 when AMD beat Intel on 286 clock speeds because they did a die shrink and had a better process, even though they were working from the same masks. Intel 286s were only at 6MHz, and AMD introduced 8Mhz. As soon as Intel caught up AMD introduced 10 and then 12.5 Mhz versions.

Shortly afterwards there was litigation about whether the second source contract allowed AMD to produce the 386 and subsequent processors or not, and AMD then reverse engineered, or perhaps more correctly parallel engineered their own 486 functional equivalent.

I dont have an axe to grind for either party btw.