CPU-Z memory tab timings differ from SPD timings tables for both

Please can someone tell me if I am wrong in my understanding that the Memory tab timings should match the SPD tab timings for all slots used? -

My friend confirmed that these readings are low My laptop only has one RAM slot But the SPD tab is blank Both slots show blank information (

ultimate fire link slot machine slots, and the kind of RAM installed in the laptop, by clicking the Memory and SPD tabs These software are accurate most of the times, however it is also

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