DRAM calculator for Zen 3

[Ampeg]

I wanted to give a quick update with my results over the last day or so, also in case this ever helps anyone else.

No idea if this will translate into real world fps / benefits, but I had fun whittling away at the time.

Thanks again to everyone who helped!

 

[Zach_01]

Very nice tight settings!
How is AIDA64 now?

 

[Ampeg]

@Zach_01

 

[Zach_01]

I was expecting though that bandwidth would be over 60GB (Read/Copy)

Off topic...
So how is your thermals with 5800X?

Have you seen this?

Ryzen 5800 owners complain about very high MT load temps

my 3700X pulls way more than 88W try double it's TDP at 135.8W during CBr20 multi mind you it's also pulling an all core of 4450MHz and reaches 77c That is interesting... Can you show to us a screenshot of HWiNFO sensors mode, full window, during R20 MultiT?

www.techpowerup.com

 

[Ampeg]

@Zach_01

Yeah, not sure on over 60k, could still be some early BIOS / AGESA issues?

Read through that thread a bit.. here are my results.

CPU on Auto - 4.45Ghz all core sustained

CPU @ 4.7Ghz - 1.35V in BIOS

I haven't had a chance to fine tune any settings, but it seems like Auto isn't doing a great job of what can be done MT wise?

Let me know if you'd like to see anything else.

 

[Space Lynx]

@Ampeg

can you give us an exact screenshot of your final settings for these speeds? you posted one earlier but it only showed timings, not the right side of calculator where voltages would have been, powerdown mode, etc..

 

[Zach_01]

@Zach_01

Yeah, not sure on over 60k, could still be some early BIOS / AGESA issues?

Read through that thread a bit.. here are my results.

CPU on Auto - 4.45Ghz all core sustainedView attachment 175241

CPU @ 4.7Ghz - 1.35V in BIOS
View attachment 175242


I haven't had a chance to fine tune any settings, but it seems like Auto isn't doing a great job of what can be done MT wise?

Let me know if you'd like to see anything else.

Both are impresive results
But... you have (probably) a lot of essential sensors hidden.

Temp wise
Does this CPU have a "CPU (Tctl/Tdie)" temp reading? This is the absolute core die hotspot on ZEN2. A reading that switches between all sensors across the core die and report instantly always the highest one. These CPUs have over 50 temp sensors on each core die alone.
"CPU Die (average)" is the avg temp from all sensors combined.
"CPU CCD1 is a reading from one specific sensor on one side of the core die.

Also sensors:

"PPT" and "PPT limit"
"EDC" and "EDC limit"
"TDC" and "TDC limit"
"Power Reporting Deviation (Accuracy)"

can tell a lot about the power draw of the CPU and if exceed its intended limits.

PowerReportingDeviation

IMPORTANT - Explaining the AMD Ryzen "Power Reporting Deviation" -metric in HWiNFO

Ryzen CPUs for AM4 platform rely on external, motherboard sourced telemetry to determine their power consumption. The voltage, current and power telemetry is provided to the processor by the motherboard VRM controller through the AMD SVI2 interface. This information is consumed by the processors...

www.hwinfo.com

"Core x Tx effective clock" for each thread is reporting the effective clock of each core and thread including all the power C-states (C0/C1/C6)
"Core x C0 Residency" is the active state
"Core x C1 Residency" is a low power state(sleep)
"Core x C6 Residency" is the lowest power state(deep sleep)

FEATURE - Effective clock vs instant (discrete) clock

It has become a common practice for several years to report instant (discrete) clock values for CPUs. This method is based on knowledge of the actual bus clock (BCLK) and sampling of core ratios at specific time points. The resulting clock is then a simple result of ratio * BCLK. Such approach...

www.hwinfo.com

Voltage wise

"CPU x VID" doesn't mean anything really. This is just a voltage asked by each core (VID = Voltage I Demand). But only one voltage is provided to the cores and that you can see as accurate as possible on the "CPU Core Voltage (SVI2 TFN)". Same for the SoC voltage the "SoC voltage (SVI2 TFN)". Those are readings drawn straight from CPU it self. "Vcore" is from board sensor and not so accurate.

Also there is a new version of HWiNFO adding and/or fixing some metrics for Vermeer/ZEN3 CPUs. Keep this on tracking as there will be more I guess.

HWiNFO v6.35-4305 Beta released

HWiNFO v6.35-4305 Beta available. Changes: Enhanced sensor monitoring on ASUS H570, B560, H510 and Q570 series. Added reporting of Precision Boost Clock Limit and Automatic OC Offset on AMD Vermeer. Fixed monitoring of CPU power and HTC status on AMD Zen3.

www.hwinfo.com

The (perf #x/x) numbers you see next to discrete Core x Clock is the core performance/"quality" order. Second (x/x) is the actual perf order and first (x/x) is what windows choose to load more first. From light loads and upwards.
This is reflected directly in the effective clock of each core and thread and also on the C-states residency.

 

[Ampeg]

@lynx29

@Zach_01

CPU @ Auto

CPU @ 1.35v - 4.7Ghz

Hoping this is what you're looking for. I'm fairly new to this, so if there's anything I missed this time around, please let me know.

I would love to learn it all, so everything so far from everyone has been greatly appreciated.

 

[Zach_01]

Can you lower voltage from 1.35V? and was that actually sustained (1.35V) during R20 run or did Vdroop some?

I can see power consumption and temp drop when using the static 4.7GHz but I don’t know if that high Current of 205A vs 140A of stock can affect silicon, long term.

Have you ever tried to run stock boosting with core voltage (minus)offset?

And one more... PRD(Accuracy) reading is only active at stock settings. Have you seen what value is produced during the 100% load. This tells about, if you board is lying about the CPU power consumption.

 

[Ampeg]

Can you lower voltage from 1.35V? and was that actually sustained (1.35V) during R20 run or did Vdroop some?

I can see power consumption and temp drop when using the static 4.7GHz but I don’t know if that high Current of 205A vs 140A of stock can affect silicon, long term.

Have you ever tried to run stock boosting with core voltage (minus)offset?

And one more... PRD(Accuracy) reading is only active at stock settings. Have you seen what value is produced during the 100% load. This tells about, if you board is lying about the CPU power consumption.

There was definitely Vdroop.

When I change from 'Auto' to 'AMD Overclock' Ryzen Master changes the EDC from 140A limit to 280A limit. Not sure what that means.. 280A sounds scary though!

When I touch the core voltage offset at all.. I get very weird voltages.. and the CPU sits on 3800mhz even on auto. Haven't messed with it too much, but I do believe they said undervolting is coming in a future AGESA, so maybe that's why it's acting weird.

 

[Dux]

Here is something interesting. I tried RAM overclocking on my ZEN 2 R5 3600. Going from default 2400MHz to 3800MHz and infinity clock in 1:1 ratio, i got a very nice performance boost in Deus EX: Mankind divided benchmark. From 115 to 138fps. It wasn't on max settings. idk which combination it was any more.

Now i have ZEN 3 5900X and i also tried the same benchmark with RAM at 2400MHz, 3800MHz and also 4000MHz. FCLK and uclk in 1:1 ratio even at 4000MHz RAM.
Absolutely no difference in framerate in the benchmark. What the hell is going on?

 

[Taraquin]

Here is something interesting. I tried RAM overclocking on my ZEN 2 R5 3600. Going from default 2400MHz to 3800MHz and infinity clock in 1:1 ratio, i got a very nice performance boost in Deus EX: Mankind divided benchmark. From 115 to 138fps. It wasn't on max settings. idk which combination it was any more.

Now i have ZEN 3 5900X and i also tried the same benchmark with RAM at 2400MHz, 3800MHz and also 4000MHz. FCLK and uclk in 1:1 ratio even at 4000MHz RAM.
Absolutely no difference in framerate in the benchmark. What the hell is going on?

GPU-limited? What GPU, resolution and setting? Try the SOTTR, there you get CPU game avg fps and status on how much GPU is bottlenecking.

 

[TheLostSwede]

@lynx29

View attachment 175320View attachment 175319View attachment 175318

@Zach_01

CPU @ Auto
View attachment 175321

CPU @ 1.35v - 4.7Ghz

View attachment 175322

Hoping this is what you're looking for. I'm fairly new to this, so if there's anything I missed this time around, please let me know.

I would love to learn it all, so everything so far from everyone has been greatly appreciated.

Just a tip, if you plug in a FAT32 formatted USB drive while in the UEFI, you can usually grab screenshots that will be auto saved to it, by pressing F12 or a similar key.

 

[Ampeg]

Here is something interesting. I tried RAM overclocking on my ZEN 2 R5 3600. Going from default 2400MHz to 3800MHz and infinity clock in 1:1 ratio, i got a very nice performance boost in Deus EX: Mankind divided benchmark. From 115 to 138fps. It wasn't on max settings. idk which combination it was any more.

Now i have ZEN 3 5900X and i also tried the same benchmark with RAM at 2400MHz, 3800MHz and also 4000MHz. FCLK and uclk in 1:1 ratio even at 4000MHz RAM.
Absolutely no difference in framerate in the benchmark. What the hell is going on?

@DuxCro You're likely GPU bound/limited. I have the same issue.

Run the SOTTR demo benchmark and the bottom right corner with your results will likely say "GPU Bound 100%".

Just a tip, if you plug in a FAT32 formatted USB drive while in the UEFI, you can usually grab screenshots that will be auto saved to it, by pressing F12 of a similar key.

@TheLostSwede - Great tip! Thank you!

 

[bpgt64]

My memory clocks are apparently shit, but my CPU is doing good;

 

[QueueCumber]

Hi Ampeg,

Thank you for posting your findings for those memory modules!

I have the same RAM and your settings above plugged right in and worked with my 5950x at 1900 fabric clock. It helped me raise my 3D Mark scores substantially in the 3D Mark Hall of Fame (I'm temporarily number 10 in ALL Time Spy and number 7 in 2x SLI Time Spy and number 11 in Time Spy Extreme for SLI and number 12 for ALL Time Spy Extreme).

I scored 33 312 in Time Spy

AMD Ryzen 9 5950X, NVIDIA GeForce RTX 3090 x 2, 32768 MB, 64-bit Windows 10}

www.3dmark.com

I scored 18 370 in Time Spy Extreme

AMD Ryzen 9 5950X, NVIDIA GeForce RTX 3090 x 2, 32768 MB, 64-bit Windows 10}

www.3dmark.com

Solid work!

 

[Ampeg]

@QueueCumber - Glad I could help!

 

[Anonymous1243]

Is there anything I can do to hit 1900 FCLK if I've tried all the settings on the Main page and can't post above 1867?

5800x MSI B550 Tomahawk latest BIOS. Did I just lose the lottery?

 

[Taraquin]

Is there anything I can do to hit 1900 FCLK if I've tried all the settings on the Main page and can't post above 1867?
View attachment 175950
5800x MSI B550 Tomahawk latest BIOS. Did I just lose the lottery?

You could try SOC 1.2 and VDDG IOD 1.15V. First you could try 1.15 SOC and 1.1V VDDG IOD. The first values are a bit too high for my liking, but I know some guys who use them daily What happends when trying 1900? No boot? Unstable?

@Zach_01

View attachment 175237

Good result! Could you try shadow of the tomb raider benchmark if you have it? 1080p medium quality? Look at CPU game fps.

 

[Ampeg]

@Dreamic - You're going for 1900 FCLK but using 3600mhz timings? Could try using 3800mhz timings or you could try mine that I posted earlier in the thread.

@Taraquin - I'm still 100% GPU bound at medium, so let me know if you want something else tested. (Need a new GPU badly)

 

[thesmokingman]

@Zach_01

View attachment 175237

That's about as tight as it'll go on Zen 3. You dropped around 9-10ns off stock.

 

[Space Lynx]

@Zach_01 can I get your ram settings?

 

[Taraquin]

@Dreamic - You're going for 1900 FCLK but using 3600mhz timings? Could try using 3800mhz timings or you could try mine that I posted earlier in the thread.

@Taraquin - I'm still 100% GPU bound at medium, so let me know if you want something else tested. (Need a new GPU badly)

View attachment 176021

I look at your CPU game avg\mins. That is what fps you would have gotten if you were 0% GPU-bound Exclusive fullscreen can help a bit, also high performance power plan, but I think you are close to max

 

[Anonymous1243]

@Taraquin @Ampeg
Yea I just can't boot at 1900 FCLK, and I haven't tried 3800mhz because there's no point getting it stable if I can't boot 1900.
Currently testing 1867 but I don't think I can get CL14 3733

AIDA 55ns latency, BIOS cannot set tRRDS lower than 4

 

[Ampeg]

@Dreamic - You said latest BIOS.. is that 7C91vA51(Beta version) or 7C91vA4 ? I believe I read the one that activates SAM (7C91vA51) is known to have issues with hitting high FCLK.

EDIT: If you're on the beta, try flashing 7C91vA4 and try again.