https://en.wikipedia.org/wiki/Kim_Peek
Assuming Kim Peek's IQ without his savant syndrome would have been 100, with his functional IQ as a savant being 87, and taking into account that a similar thing happens to downies (there are smart downies, but were they not to be downies, they're IQ would be 30 points higher), then we can conclude that if someone like Von Neumann were to have been born with savant syndrome, we would have had the greatest human computer in history: IQ down from +200 to 180, but acquiring the ability to multiprocess different streams of thought, eidetic memory, hyper fast processing power, and instant recall.
Assuming Kim Peek's IQ without his savant syndrome would have been 100, with his functional IQ as a savant being 87, and taking into account that a similar thing happens to downies (there are smart downies, but were they not to be downies, they're IQ would be 30 points higher), then we can conclude that if someone like Von Neumann were to have been born with savant syndrome, we would have had the greatest human computer in history: IQ down from +200 to 180, but acquiring the ability to multiprocess different streams of thought, eidetic memory, hyper fast processing power, and instant recall.