If a 64GB Lexar 633x card is MLC and 128GB Lexar 633x card is TLC, which is the best? The 64GB maybe has a lifetime of 2x the writes per cell compared to the 128GB, but the 128GB has twice the cells so its lifetime in writes per card is identical. The difference then is only that the 128GB card keeps twice as much video before overwriting. More @Wikipedia
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