3 ms·

Something that might have something to do with this is the difference between the DRAM in RAM and the SRAM on the CPU die. On DRAM, the bit is stored as a charg

Something that might have something to do with this is the difference between the DRAM in RAM and the SRAM on the CPU die. On DRAM, the bit is stored as a charge on a capacitor, which is (apparently) susceptible to cosmic ray bit-flipping. Perhaps SRAM is less delicate in that regard?

soundsop 17y ago
It used to be the case that DRAM was more sensitive to soft errors than SRAM until about 8 to 10 years ago. Today, soft errors in SRAM are more of a problem than in DRAM. The capacitance per unit cell of DRAM has remained relatively constant, while the capacitance per node of SRAM has shrunk dramatically with transistor scaling. So even though SRAM actively holds data, contrasted to DRAM, which passively hold data, SRAM's low capacitance makes it more susceptible to soft errors.