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Is this an acceptable RAM OC?

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Evelynn

Registered
Joined
Nov 11, 2022
Hi everyone.
I'm fairly new to memory overclocking but I watched Buildzoid's guide on ASUS Z690 memory tuning and gave it a shot.
He tightened the primary, secondary, and level three timings. I was able to tighten both primary and secondary, but third level timings would create errors in MemTest86. Here is the final result:

tweaked secondary timings.PNG FpWuHWzWIAAuhow.png memstock.PNG

My system is a 12700k at 50x Core 47x Ring.
At stock, the DDR5 is 40-40-40-77-117 @ 6000 (2T)
Tuned, I'm able to hit 32-32-32-30-62 @ 5800 (2T) 1.4 V - I cannot change the timings at all with 6000, but dropping down to 5800 gives a ton of headroom. Time Spy's CPU score increases by roughly ~8%.

Is this about average for DDR5 tuning? At stock, the latency is 69 ns, and the timings are drastically higher in comparison.
 
I would try 6400-6600 CL32/36/36, CL34-38-38, CL36-38-38 or something near at 1.40-1.45V. You will get better results in general. On the other hand, in games it won't help much.
Here is the latest Corsair/Samsung review - https://www.overclockers.com/corsair-vengeance-32gb-ddr5-6000-cl36-memory-kit-review/ It was tested on AMD but the frequency range is similar and you can check timings list at XMP/EXPO. The profile works at 6200-6400 too.
Tertiary timings are pretty much waste of time. It looks nice for screenshots on the web, but in general the performance gain is below 1%. Most secondary timings the same. The most important will be tREFI (as high as possible), tRFC (around 380-450), tRRD_L/S (typically 7/5 or 6/4). Maybe I missed something.
On Intel, higher frequency = better, even at more relaxed timings (well, not very relaxed).
 
I would try 6400-6600 CL32/36/36, CL34-38-38, CL36-38-38 or something near at 1.40-1.45V. You will get better results in general. On the other hand, in games it won't help much.
Here is the latest Corsair/Samsung review - https://www.overclockers.com/corsair-vengeance-32gb-ddr5-6000-cl36-memory-kit-review/ It was tested on AMD but the frequency range is similar and you can check timings list at XMP/EXPO. The profile works at 6200-6400 too.
Tertiary timings are pretty much waste of time. It looks nice for screenshots on the web, but in general the performance gain is below 1%. Most secondary timings the same. The most important will be tREFI (as high as possible), tRFC (around 380-450), tRRD_L/S (typically 7/5 or 6/4). Maybe I missed something.
On Intel, higher frequency = better, even at more relaxed timings (well, not very relaxed).
Thank you very much! I'll give the review and overclocking section a read.
 
I would try 6400-6600 CL32/36/36, CL34-38-38, CL36-38-38 or something near at 1.40-1.45V. You will get better results in general. On the other hand, in games it won't help much.
Here is the latest Corsair/Samsung review - https://www.overclockers.com/corsair-vengeance-32gb-ddr5-6000-cl36-memory-kit-review/ It was tested on AMD but the frequency range is similar and you can check timings list at XMP/EXPO. The profile works at 6200-6400 too.
Tertiary timings are pretty much waste of time. It looks nice for screenshots on the web, but in general the performance gain is below 1%. Most secondary timings the same. The most important will be tREFI (as high as possible), tRFC (around 380-450), tRRD_L/S (typically 7/5 or 6/4). Maybe I missed something.
On Intel, higher frequency = better, even at more relaxed timings (well, not very relaxed).

Here's what I ended up being able to achieve. Unfortunately, 6400 & 6600 @ CL36-38-38 and also CL38-38-38 were both unachievable. This is definitely still an improvement over what I had before, so thank you very much for the tips!

6200 mhz.PNG
 
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