RAM Overclocking

[Stahlmann]

Hello good people,

 

my full specs are in my signature. I want to get into RAM overclocking just to try it out a bit.

 

First get to a higher frequency or get tighter timings?

 

3800MHz cl16 (stock timings) is stable.

3600MHz (Stock frequency) cl14 is stable.

Combining both is not stable.

 

What makes more sense do do first or what will give a bigger performance gain? Timings or frequency?

I am using memtest on a bootable USB-drive to validate my OCs.

[Haro]

10 hours ago, Stahlmann98 said:

3800MHz cl16 (stock timings) is stable.

3600MHz (Stock frequency) cl14 is stable.

both will perform similarly really. either one will work. 

[Stahlmann]

1 minute ago, TofuHaroto said:

both will perform similarly really. either one will work. 

Another question: What is a good test for RAM performance. I know cinebench doesn't really care. The scores are all within margin-of-error to XMP settings.

[Haro]

10 hours ago, Stahlmann98 said:

What is a good test for RAM performance.

Imo, just you're normal workload and check the performance.. 

[Hairless Monkey]

3 minutes ago, TofuHaroto said:

both will perform similarly really. either one will work. 

This seems more about the "fun" than the practical "will it work"

5 minutes ago, Stahlmann98 said:

First get to a higher frequency or get tighter timings?

You have a ryzen chip so you'll have to figure out what your max fclk is.

 

From there you can work on tightening timings and find the sweet spot for your RAM where you can get the best latency possible at the highest freq possible.

 

Always prioritize latency over bandwidth.

[Hairless Monkey]

2 minutes ago, Stahlmann98 said:

What is a good test for RAM performance.

I use Aida64, and Passmark Performance Test. Geek Bench is good too I hear.

[Stahlmann]

1 minute ago, HairlessMonkeyBoy said:

This seems more about the "fun" than the practical "will it work"

You have a ryzen chip so you'll have to figure out what your max fclk is.

 

From there you can work on tightening timings and find the sweet spot for your RAM where you can get the best latency possible at the highest freq possible.

 

Always prioritize latency over bandwidth.

Basically first OC the infinity fabric to find out where the limit with my 3700x is, then take the momory to the matching frequency and then tighten the timings as much as possible.

Did i understand that correctly?

[Hairless Monkey]

Just now, Stahlmann98 said:

Did i understand that correctly?

Basically yeah. I imagine you might still get stuck between choosing the CL14 3600 or the CL16 3800Mhz. If it were Intel it'd be simple, the CL14 setting is better because 14/3600 < 16/3800 aka better latency. But with fclk in the mix things get more complicated...

 

If you could get CL15, then 3800 might make the most sense. You can safely increase your DRAM voltage up to 1.45V to see if that helps. Even 1.5V would be okay for 24/7.

[Stahlmann]

2 minutes ago, HairlessMonkeyBoy said:

Basically yeah. I imagine you might still get stuck between choosing the CL14 3600 or the CL16 3800Mhz. If it were Intel it'd be simple, the CL14 setting is better because 14/3600 < 16/3800 aka better latency. But with fclk in the mix things get more complicated...

 

If you could get CL15, then 3800 might make the most sense. You can safely increase your DRAM voltage up to 1.45V to see if that helps. Even 1.5V would be okay for 24/7.

Alright, thanks for the information. I will try all this out soon and see what i can do.

 

I don't need the performance at all, because i don't do any real work on my pc, but OCing is fun all by itself. I'm sure you see it the same way, seeing that everything in your own PC is OCed aswell

[Hairless Monkey]

1 minute ago, Stahlmann98 said:

I don't need the performance at all, because i don't do any real work on my pc, but OCing is fun all by itself. I'm sure you see it the same way, seeing that everything in your own PC is OCed aswell

Read me like a book.