RAM optimisation (DDR4)

[lepudruk]

Ok, so I'm still using DDR4 but with a quite nice ram modules (I think): it's G.SKILL F4-4000C16-16GTZR (2x16GB, Samsung B-die).

I managed to run them @3600MHz with timings 14-14-14-34, Gear 1, CR 2T (tried 1T and failed). With current settings they're 100% stable.

Now , I was just wondering - is there any space for improvement here? I'm not an expert but if there's something I could easily change in Bios and make them run even better then why not? This system is used for gaming only.

Any valuable input would be highly appreciated

 

[Dr. Dro]

If you were running Ryzen i'd say no, but since you're on Alder Lake, i'd say you should try to run 4000 tightened. Unless your motherboard or IMC doesn't cooperate, end of the day, 3600 C14 is pretty great for DDR4. I don't think there will be a dramatic impact going from that to anything that isn't DDR5.

 

[lepudruk]

If you were running Ryzen i'd say no, but since you're on Alder Lake, i'd say you should try to run 4000 tightened. Unless your motherboard or IMC doesn't cooperate, end of the day, 3600 C14 is pretty great for DDR4. I don't think there will be a dramatic impact going from that to anything that isn't DDR5.

I've tried various settings with @4000 but in benchmarks @3600 was still better, for instance internal Cyberpunk 2077 benchmark showed more fps (can't remember exact number but it was far from marginal error).

 

[Dr. Dro]

I've tried various settings with @4000 but in benchmarks @3600 was still better, for instance internal Cyberpunk 2077 benchmark showed more fps (can't remember exact number but it was far from marginal error).

Yup, might be your motherboard or IMC that doesn't handle it well. In any case, I reckon 3600 C14 is about as good as DDR4 gets. Enjoy

 

[Taraquin]

I would tweak the following:
Ras 28
Rc 42
Rfc 264 if you use 1.45v on dimms or more.
Rrds 4
Rrdl 6
Faw 16
Wr 16
Rtp 8
Tdwr 8
Wrrd 3

 

[lepudruk]

I ran a quick check and it goes like this:

1) 14-14-14-34@3600 Gear1 2T -- 88 fps [ manual settings ]

2) 16-19-19-39@4000 Gear2 1T -- 83 fps [ default xmp settings ]

So, even in 3440x1440 resolution it's still 5 fps difference. And I'm affraid it's all this ram can handle cause any deviation from default xmp profile with @4000 makes system unstable (or won't boot). Perhaps it's a question of voltage but I'm not a desperate and I value stability over all (after all )

 

[VuurVOS]

Can you share the output of zentimings?

ZenTimings

ZenTimings is a simple and lightweight app for monitoring memory timings on Ryzen platform.

zentimings.com

 

[lepudruk]

Can you share the output of zentimings?

ZenTimings

ZenTimings is a simple and lightweight app for monitoring memory timings on Ryzen platform.

zentimings.com

It's not an AMD cpu.

 

[VuurVOS]

It's not an AMD cpu.

Oh shit, my mistake