Performance Comparisons
| Rover (mission, organization, year) | CPU | RAM | Flash | EEPROM | Operating system | CPU time available for the autonomy software |
|---|---|---|---|---|---|---|
| Sojourner Rover (Pathfinder, NASA, 1997) | 2 MHz Intel 80C85 | 512 KB | 176 KB | None | Custom cyclic executive | Not applicable to Cyclic Executives |
| Pathfinder Lander (NASA, 1997) |
20 MHz MFC (IBM RAD6000 Precursor) | 128 MB | None | 6 MB | VxWorks (multitasking) | less than 75% |
| Spirit and Opportunity (Mars Exploration Rover (MER), NASA, 2004) | 20 MHz BAE RAD6000 | 128 MB | 256 MB | 3 MB | VxWorks (multitasking) | less than 75% |
| Curiosity (Mars Science Laboratory (MSL), NASA, 2011) | 132 MHz BAE RAD750 | 256 MB | 2 GB | 256 KB | VxWorks (multitasking) | less than 75% |
Read more about this topic: Comparison Of Embedded Computer Systems On Board The Mars Rovers
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