These cards are doing kind of awesome? For endurance:size of consumer drives, 600 drive cycles (Terabytes written (tbw)/terabytes capacity) is pretty much the best advertised endurance you're gonna get, is very standard. Definitely a gamble but seeing some of these SD cards spit out 4000 cycles is incredibly impressive in that light.
In practice consumer NVMe/sata drives do tend to last longer. The ever excellent TechReport did a test to failure 10 years ago, and all drives made it to 3000 cycles. The Samsung 840 Pro almost made it to 10k cycles! https://techreport.com/review/the-ssd-endurance-experiment-t...
I'd love to see some modern drives tested. It would be really interesting to know who makes flash that in practice is the highest endurance: kioxia, micron, whose flash lasts longer? TechReport has an excellent SSD database that shows all the parts & specs on those parts, so one can go look at a SanDisk/WD SN7100 and see oh it uses Kioxia 218-Layer BiCS8 3D TLC; there's not really that many people making flash itself. It's be lovely to have some exhaustion/test to failure for these consumer stacks. And what stacks they are! 218 layers! I can't imagine endurance has gone up over the decade, especially given how strongly drives 10 years ago overperformed!! https://www.techpowerup.com/ssd-specs/western-digital-sn7100...
In practice consumer NVMe/sata drives do tend to last longer. The ever excellent TechReport did a test to failure 10 years ago, and all drives made it to 3000 cycles. The Samsung 840 Pro almost made it to 10k cycles! https://techreport.com/review/the-ssd-endurance-experiment-t...
I'd love to see some modern drives tested. It would be really interesting to know who makes flash that in practice is the highest endurance: kioxia, micron, whose flash lasts longer? TechReport has an excellent SSD database that shows all the parts & specs on those parts, so one can go look at a SanDisk/WD SN7100 and see oh it uses Kioxia 218-Layer BiCS8 3D TLC; there's not really that many people making flash itself. It's be lovely to have some exhaustion/test to failure for these consumer stacks. And what stacks they are! 218 layers! I can't imagine endurance has gone up over the decade, especially given how strongly drives 10 years ago overperformed!! https://www.techpowerup.com/ssd-specs/western-digital-sn7100...