Memory timings perf improvement

[Aribeth-arygos (Aribeth)]

With only manual timings the 3950X gets about 20% increased and the 9900KS gets 9% uplift. Both CPUs can still be OCed more. The 9900K has more clock and the 3950X has more clock, fabric and controller perf left on the table.

https://i.imgur.com/S3hOxIA.png

Ryzen 9 3950X vs. Core i9-9900KS Gaming, Feat. Tuned DDR4 Memory

Most people are leaving free perf on the table if they aren’t tweaking their memory settings.

Edit:
Interesting observation from the 2000 era.

https://web.archive.org/web/20120406111104/http://www.eecs.ucf.edu/~lboloni/Teaching/EEL5708_2006/slides/wulf94.pdf

We all know that the rate of improvement in microprocessor speed exceeds the rate of improvement in DRAM memory speed, each is improving exponentially, but the exponent for microprocessors is substantially larger than that for DRAMs. The difference between diverging exponentials also grows exponentially; so, although the disparity between processor and memory speed is already an issue, downstream someplace it will be a much bigger one.

This is precisely what’s happening today.

[Rayrise-stormrage]

Ryzen dram calculator is your friend. Nice quick and dirty oc.

[You-darrowmere (You)]

@Aribeth-arygos

Most people are leaving free perf on the table if they aren’t tweaking their memory settings.

Thats because some people just want to put together their build, plug it in and have it work as advertised out of the box without doing special things. Who does this “tweaking” stuff? lul

/s

[Rayrise-stormrage]

Yeah, most people don’t overclock. Very small community. Which means most k series cpu’s slapped into oem builds never go past stock settings.

[Aquorius-greymane (Aquorius)]

Lol trying to reason with Lisa Su’s toilet paper that’s a good one.

[Aribeth-arygos (Aribeth)]

@Aquorius-greymane

Lol trying to reason with Lisa Su’s toilet paper that’s a good one.

The 9900K is great CPU. Hardly ‘Lisa Su’s toilet’.

[Griefs-emerald-dream (Griefs)]

@You-darrowmere

have it work as advertised out of the box without doing special things

Lol yeah, what a ridiculous expectation some people have. Working out of the box!!! Without having to do “special things”!!!

/s

[Chroesire-bleeding-hollow (Chroesire)]

On a 3700X with two 3200Mhz Samsung B-die 14-14-14-34 8GB sticks, how much gain would there be to tweaking vs. just using the standard XMP profile? I might have been misreading but for that particular CPU it seemed like it’d only net you a few frames in most games.

(asking for a friend – I’m still on my 6700k, looking at doing a 3950X build next year)

[Aribeth-arygos (Aribeth)]

@Griefs-emerald-dream

Lol yeah, what a ridiculous expectation some people have. Working out of the box!!!

I don’t get what you people have trouble understanding. Everything works out of the box. The entire thread is about overclocking.

@Chroesire-bleeding-hollow

On a 3700X with two 3200Mhz Samsung B-die 14-14-14-34 8GB sticks, how much gain would there be to tweaking vs. just using the standard XMP profile? I might have been misreading but for that particular CPU it seemed like it’d only net you a few frames in most games.

Depends on the game/settings/etc. The difference between XMP and manual tweaking in Hitman DX12:

-3950X got a 24% boost
-9900K got a 9% boost

Not bad for free performance.

[Griefs-emerald-dream (Griefs)]

@Aribeth-arygos

I don’t get what you people have trouble understanding. Everything works out of the box.

I was making fun of what You said. Literally used his words and quoted him.