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need some explanation about three different "1T" Command Rates in BIOS (Z690)

Feb 6, 2021
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Processor Intel Core i5 12600K (5.1/4.1/4.3) and tons of others (F.E 5950x, 10900k)
Motherboard MSI Z690 PRO A DDR4
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i currently run my old Trident Z Kit and it defaults to a 2T Command Rate.
on Ryzen it defaults to 1T and it is completely stable on Alder Lake as well.

Can someone explain me what the difference between 1N, N:1 and Real 1N is? all three are working and have no influence on performance or latency in AIDA.
Last edited:


I'm the only one
Mar 20, 2006
13,839 (2.39/day)
System Name Dirty Fecker
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Keyboard Anne pro II
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Benchmark Scores do they matter
I would be interested to know too, after putting my ADL setup together.
Sep 4, 2008
232 (0.05/day)
Its not new. These extras have been around since at least 10th gen. What does it do? No idea myself. Never found any documentation on it.

N=T which means it would translate to 1:T and Real 1T.
Jan 14, 2019
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Midlands, UK
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Benchmark Scores Cinebench R23 multi core: 14,185, single core: 1,530. Superposition 1080p Extreme: 5,280.
On my system, 1N is 1T, 2N is 2T, and Auto defaults to 2T. I don't know what the other options mean.