First of all, I thought it is cheap and good without doing much research. Turns out the best DDR5 RAM for Ryzen 9000 series should be Hynix chips. EXPO timings are:
6000 MT/s: 36-38-38-80-118, 1.35v
6400 MT/s: 38-40-40-84-118, 1.35v
Just to show you all how "overclockable" these sticks are since it is marketed as "OC Gaming". For info, it uses Micron D-die chips.


Take note that:
- These sticks run best at 1.2v memory VDD/VDDQ. Higher voltage will only make the RAM less stable. There's a review somewhere also confirmed my finding. So do ignore the default EXPO voltage of 1.35v.
- The Aida64 benchmark results are based on the above timings @ 6000 MT/s with a FCLK of 2200 and PBO disabled.
- The RAM can be pushed to higher clock speed like 6200 / 6400 MT/s but there's not much of performance gain as timings have to be loose and I don't want to run my Ryzen processor with higher Vsoc.
- So ya, despite all efforts, it's impossible to get the latency below 70ns like those Hynix chips.
For those who "accidentally" bought Crucial DDR5, you can refer to the above timings to get the most out of it (don't forget to lower the voltage to 1.2v). You can hardly find any other optimized reference timings about these chips online because Micron DDR5 are so unpopular.
Mar 24 2025, 03:21 PM, updated 9 months ago
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