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AMD engineers built Ryzen Threadripper in their spare time

There is an interesting story behind Threadripper.
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"It’s not really a story of roadmaps and long-term planning or huge R&D budgets—it’s a lot more personal than that and stemmed from a skunkworks project and a small group of AMD employees who had a vision of a processor they’d really want in terms of a high-performance PC," Sarah Youngbauer from AMD's communications team told Forbes.

"They worked on it in their spare time and it was really a passion project for about a year before they sought the green light from management, which is quite unusual— it was something they really cared about,"


That article points to this 5 page Forbes article.


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AMD Ryzen Threadripper: The Fascinating Story Behind The Processor That Beat Intel
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Where AMD is still a little slower, for example in some older or lightly threaded games, is less of an issue as many people will use Ryzen Threadripper purely for its multithreaded performance. It has to be said that there aren't many reasons to choose Intel in the high end desktop market at this price point..


Forbes Article


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