XMP vs OC Relearning

[-rascal-]

I am not very familiar with DRAM overclocking, I typically just enable XMP, or increase the frequency and/or tightening the timings by trial-and-error.

Anyways, poking around with a bit more CPU and DRAM overclocking (since my SO is out of town for a few days with her friends).

Currently just testing my overclocks with 3DMark Time Spy + Cinebench R20 + AIDA64 stability test.

 

XMP for my G.Skill kits are: -- two 2x16GB sets of identical timings:

• DDR4-3000
• 14-14-14-34-2T
• 1.35V

 

I kept XMP enabled, and manually increase the DRAM frequency. The motherboard (Z390 Aorus Master) did a bit of self relearning, and it booted with:

• DDR4-3200
• 16-15-15-37 2T
• 1.35V

 

Yes, I know having all four DIMM slots populated (4 x 8GB) will put more load on the IMC compared to only using two DIMMs.

I think synthetic benchmarks / 3DMark would benefit from it, but not sure if it would be better in real world usages (e.g. gaming).

Given the higher latency, would it be worthwhile to run it at DDR4-3200?

 

Looking on G.Skill's site, they have DDR4-3200 kits with 14-14-14-34 and 16-18-18-38 timings.

Haven't looked into pushing 3200+ yet . . . just initial results for now...

[Haro]

3 hours ago, -rascal- said:

would it be worthwhile to run it at DDR4-3200?

From both of your results 

The 3000 kit will perform close / if not identically to the 3200 kit 

Which one is better ? Both would perform about the same 

So you would choose which one that is more stable 

[-rascal-]

1 hour ago, TofuHaroto said:

From both of your results 

The 3000 kit will perform close / if not identically to the 3200 kit 

Which one is better ? Both would perform about the same 

So you would choose which one that is more stable 

 

I tried to get DDR4-3200 running with mix of 14 / 15 primary timings...no luck.

Also tried dial in better primary and advanced timings by using Ryzen DRAM calculator recommendations + Thaiphoon for DDR4-3200 and DDR4-3400...

No luck yet...

 

Ran into a few where cases the manual timings will stick, but the motherboard will drop the DRAM ratio down by 2 or 3.

(e.g. set for 3200, but boots at ~2933 or ~2800)

 

DRAM overclocking + tweaking is much more tedious than CPU or GPU overclocking  

[Haro]

4 minutes ago, -rascal- said:

DRAM overclocking + tweaking is much more tedious than CPU or GPU overclocking  

Yea in some cases it can be 

But it is fun