Re:Ask HN: Why did stack-based CPUs lose out?
by numpad0 on Sunday January 01, 2023 @10:04AM
(#34206784)
Power arguments is interesting. Triple redundant 5W processors and 5W more for the redundancy support circuits(must not fail)? Sounds cheaper and easier to just slap on that 20W part, unless that 20W part is so expensive that it outweighs engineer man-hours for the 5W x 3 solution, but I can't see why it would unless said engineers are massively under-paid.
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Re:Ask HN: Why did stack-based CPUs lose out?
by shagie on Sunday January 01, 2023 @11:44AM
(#34207865)
I'm going to correct a previous part - the 20W appears to be the budget for the system.
The RAD750 is a 5W processor and on a motherboard, is a 10W system.
https://en.wikipedia.org/wiki/RAD750
> The CPU can withstand an absorbed radiation dose of 2,000 to 10,000 grays (200,000 to 1,000,000 rads), temperatures between −55 °C and 125 °C, and requires 5 watts of power. The standard RAD750 single-board system (CPU and motherboard) can withstand 1,000 grays (100,000 rads), temperatures between −55 °C and 70 °C, and requires 10 watts of power.