ksec
10 months ago
SD Express is now up 9.1. I am wondering what is the current technical limit of SD Express. Could we get a 1TB Memory card reaching 3GB/s? And in a few years time effectively replace SSD for some laptops?
s1gsegv
10 months ago
SD Express is fundamentally PCIe + NVMe in a different package, so the technology is prepared to hit incredible speeds when the fastest flash gets physically small and efficient enough to fit.
ksec
10 months ago
But I assume there is controller, power and heat limitations. You can only fit so many NAND package within an SD Card which limits its speed. Then higher speed SSD also has power / heat issues. And with that limitation I am thinking of reliability compared to M2 SSD.