Rad-tolerant	Rad-hardened	Strategic rad-hard
Total dose	<300 krad(Si)	300 to 1000 krad(Si)	>1 Mrad(Si)
Dose rate upset	<107 rads(Si)/s	107 to 1010 rads(Si)/s	>1010 rads(Si)/s
Dose rate survivability	<1010 rads(Si)/s	1010 to 1012 rads(Si)/s	>1012 rads(Si)/s
SEU	>10­10 errors/bit-day	10­10 to 10­11 errors/bit-day	<10­11 errors/bit-day
SEL	Immune	Immune	Immune
Neutron	<1012 Mev-cm2/mg	<1012 to 1014 Mev-cm2/mg	>1014 Mev-cm2/mg