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Guru3D.com » News » NASA Perseverance rover 200 MHZ CPU costs $200K

NASA Perseverance rover 200 MHZ CPU costs $200K

by Hilbert Hagedoorn on: 02/25/2021 09:34 AM | source: heise | 28 comment(s)
NASA Perseverance rover 200 MHZ CPU costs $200K

Listen, I know we're all complaining about the fact that CPUs and GPUs, components in general are expensive. But wait until you hear this one. NASA Perseverance rover uses a processor that runs at 200 MHz, and it did cost roughly $200K USD.

Obviously, it's a CPU that needs to be able to run in a somewhat stringent environment. But more details on it, have surfaced on the web. The technology of the on-board computer Rover Compute Element (RCE for short) is reduced for performance, far below that of normal desktop PCs.

The chip has a size of 130 mm 2 and a computing power of 240 to 366 MIPS, the processor requires five watts. It has 10.4 million transistors and is manufactured by BAE Systems using the 0.25-micrometer process. According to the manufacturer, the CPU, which costs around $ 200,000, is already in over 250 spacecraft. If the RCE fails, an identical backup system switches on in the Mars rover.

RAD750 
The RAD750 processor works with clock rates from 110 to 200 MHz. In addition, the on-board computer has 256 MB of RAM, 2 GB of flash memory and a so-called warm electronics box to maintain a constant system temperature. However, it has a decisive advantage over other systems: robustness. The RCE withstands temperatures from -55 ° C to +125 ° C. In addition, the processor is not only extremely robust against extreme temperatures, but it also withstands radiation levels that would put conventional systems out of action. To put it into perspective: The RAD750 can withstand radiation of up to 10,000 Gray (Gy for short) - 6 Gy means death for humans.

NASA developers already fear that the system will crash in about 15 years due to external circumstances. In addition, the VxWorks operating system working in Perseverance would have to be supplied with new patches at some point. It remains to be seen how long the system will withstand the extremely difficult circumstances on Mars. A similar system of the Mars rover Curiosity has been running for almost ten years.



NASA Perseverance rover 200 MHZ CPU costs $200K




« AZZA Releases "CAST", a middle tower PC case with gull wing mechanism · NASA Perseverance rover 200 MHZ CPU costs $200K · Cyberpunk 2077 releases patch v1.2 (update: 500 changes + AMD raytracing) »

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Kaarme
Senior Member



Posts: 3405
Joined: 2013-03-10

#5890436 Posted on: 02/25/2021 10:37 AM
It's a good thing running scientific instruments on another planet is a lot easier than running Crysis back here on Earth.

Backstabak
Senior Member



Posts: 853
Joined: 2015-11-13

#5890445 Posted on: 02/25/2021 11:10 AM
Well, people were flying to the moon and back with a CPU that is worse than modern day calculators. It's a bit amazing if you think about it, but definitely all space and even military applications require robustness over speed.

Devid
Senior Member



Posts: 206
Joined: 2018-12-10

#5890457 Posted on: 02/25/2021 11:41 AM
So there isn't such a thing like 5GHz all core or velocity boost and stuff up there? o_O

Kevin Mauro
Senior Member



Posts: 325
Joined: 2020-11-03

#5890462 Posted on: 02/25/2021 12:00 PM
I have over 100 RTX 3080 video cards and about 50 CPU mining Monero and Etherum.
Looking to diversify my portfolio with this kind of CPU's.
I think I can short order 10 of them easily .
JK I am so poor I can barely cross the street.
:eek: :eek: :eek: :eek: :eek:
all space and even military applications require robustness over speed.
yes, totally - which is why we at "such and such" go to none other than... hahaha

So there isn't such a thing like 5GHz all core or velocity boost and stuff up there? o_O
If that's what they can get done with just a measly 200MHZ are we wasting our 5GHZ?

asturur
Senior Member



Posts: 1326
Joined: 2010-05-12

#5890493 Posted on: 02/25/2021 01:38 PM
0.25um = 250nm, sure must be shit :D

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