First SD Express 8.0 memory card from Adata hits 1.6 GB/s read speeds

(www.tomshardware.com)
4 points ksec | 5 comments | 21 Apr 25 13:30 UTC | HN request time: 0.204s | source
1. ◴[21 Apr 25 13:33 UTC] No.43751846[source]▶
2. ksec ◴[21 Apr 25 13:40 UTC] No.43751911[source]▶
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?
replies(1): >>43752641 #
3. s1gsegv ◴[21 Apr 25 14:50 UTC] No.43752641[source]▶
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.
replies(1): >>43753042 #
4. ksec ◴[21 Apr 25 15:27 UTC] No.43753042{3}[source]▶
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.