The CPU itself can withstand 2,000 to 10,000 gray and temperature ranges between –55 °C and 125 °C and requires 5 watts of power.[1][3] The standard RAD750 single-board system (CPU and motherboard) can withstand 1,000 gray and temperature ranges between –55 °C and 70 °C and requires 10 watts of power.[3]
Mars Curiosity rover on-board computer specs: CPU: 200MHz, RAM: 256MB, SSD: 2GB – iPhone specs: CPU: 800MHz, RAM: 512MB, SSD: 64GB via https://twitter.com/mikko/status/232494496338804737
Is it PowerPC-based again? It seems like the last ones were if I remember correctly.
It is PPC based:
The CPU itself can withstand 2,000 to 10,000 gray and temperature ranges between –55 °C and 125 °C and requires 5 watts of power.[1][3] The standard RAD750 single-board system (CPU and motherboard) can withstand 1,000 gray and temperature ranges between –55 °C and 70 °C and requires 10 watts of power.[3]
https://en.wikipedia.org/wiki/RAD750
The operating system is 2.5 million lines of C code (PDF presentation) running on a radiation-hardened G3 equivalent.
Very interesting PDF!