Comment by shagie

Comment by shagie 4 days ago

1 reply

I'd be most curious to see what type of processing power they would put on such a data center.

For example, the JWST uses a RAD750 ( https://en.wikipedia.org/wiki/RAD750 ) which is based on a PowerPC 750 running at 110 MHz to 200 MHz.

Its successor is the RAD5500 ( https://en.wikipedia.org/wiki/RAD5500 )... which runs at between 66 MHz and 462 MHz.

> The RAD5545 processor employs four RAD5500 cores, achieving performance characteristics of up to 5.6 giga-operations per second (GOPS) and over 3.7 GFLOPS. Power consumption is 20 watts with all peripherals operating.

That's kind of neat... but not exactly data center performance.

Back to the older RAD750...

> The RAD750 system has a price that is comparable to the RAD6000, the latter of which as of 2002 was listed at US$200,000 (equivalent to $349,639 in 2024).

That isn't exactly price performance. Well, unless you're constrained by "it costs millions to replace it."

So... I'm not really sure what devices they'd be putting up there.

The "data centers in space" is much more a "space launch is a hot technology, AI and data centers are a hot technology... put the two together and its too the moon!" (Or at least that's what we tell the investors before we try to spend all their money)

rzerowan 3 days ago

I think the last time they put commodity hardware in orbit was via the HPE[1] project and the results were quite mixed with failure rates for components that were quite high. In addition to running the system in a twin config to get any meaningful work done.

Best case scenario custom ASICs for specialised workloads either for edge computing of orbital workloads or military stuff.That would be with ability to replace/upgrade components rather than a sealed sat like environment.

Its similar to the hype for spacelink type sats for internet connectivity rather than a proper fiber buildout that would solve most of the issues at less cost.After the last couple of years seeing the deployment in UKR,Sahel its mostly a mil tool.

[1] https://www.theregister.com/2024/01/24/updated_hpe_spaceborn...