DDR5-10600 World Record Achieved on Ryzen 7 8700G & ASUS ROG Crosshair X670E GENE

[T0@st]

SafeDisk (AKA SoonHo Jeong) has tinkered with an AMD Ryzen 7 8700G APU and ASUS ROG Crosshair X670E GENE motherboard combination—earlier today, the professional overclocker set a validated/verified memory speed of DDR5-10600 world record on Team Red's AM5 platform. This has surpassed a previous result global-leading from late last week—DDR5-10346 was achieved with the same processor, but on a GIGABYTE B650E AORUS Tachyon board. SafeDisk has a distinct advantage in memory overclocking stakes, due to his workplace being the ASUS ROG labs in Taipei, Taiwan—his closest competitor, Benny Lodewijk Nitolo Lase (an Indonesian overclocker) now sits behind him in second place.

SafeDisk's test setup included the aforementioned APU plus motherboard combo, a Thermalright (not ASUS!) AIO, a twin pack of G.Skill Trident Z5 (F5-7800J3646H16G) DIMMs, and an ASUS GeForce GT 730 2 GB Silent graphics card. The ROG Crosshair X670E GENE's default set of VRM heatsinks were removed completely during test conditions. The two memory sticks were set at their default CL36 7800 MT/s speed at 1.45 V—SafeDisk's record breaking DDR5-10600 overclock was achieved with timings of 50-62-62-127-127. Wccftech noted that the: "overclock was able to boot directly into the OS and (SafeDisk) says that the whole OC procedure was very easy."




SafeDisk mentions that he did not implement any BCLK adjustments, and brought in some outboard gear—Wccftech clarified this situation: "(it's) important to mention here because apparently, there's a bug within the latest AGESA BIOS firmware that may show a higher DDR5 memory clock but in reality, that's not the case...This was confirmed by using an oscilloscope and adjusting the EX-clock (BCLK) within the BIOS settings. (This) didn't change the memory clock at all so that means that the test result achieved by the GIGABYTE B650E motherboard isn't the real deal whereas the one achieved by SafeDisk is the more factual result. This bug is seen in the AGESA 1.1.0.2b release which was released just a few weeks back and offers optimized support for AMD's Ryzen 8000G APU family."

View at TechPowerUp Main Site | Source

 

[AsRock]

Question is after these ( 50-62-62-127-127 ) lack settings is it worth while ?.

Although nice too see.

 

[Wirko]

Who cares about peasant 2024 computer tech, I want that oscilloscope from the future.

 

[DR4G00N]

Question is after these ( 50-62-62-127-127 ) lack settings is it worth while ?.

Although nice too see.

No, this is a pure frequency valid, performance or stability of any kind is irrelevant.

 

[wgg_71]

Is the oscilloscope sine wave measure a joke ?

 

[Outback Bronze]

Hmm interesting.

PS2 keyboard and mouse

 

[Wirko]

Is the oscilloscope sine wave measure a joke ?

You think it's supposed to look more like square wave? They would need a higher bandwidth (above 15 GHz) oscilloscope and probes for that. And even if they had them, digital signals at 5 GHz are very much distorted, so the clock might still look similar to a sine wave that you see.
But clock signal is not the only issue, the 128 data wires distort the signals just as much. Lengthy and accurate DDR link training is performed by the IMC in order to synchronise all the bits moving in quick succession, close to physical limit.

 

[jesdals]

Now can it play Crysis... stable...

 

[wgg_71]

You think it's supposed to look more like square wave? They would need a higher bandwidth (above 15 GHz) oscilloscope and probes for that. And even if they had them, digital signals at 5 GHz are very much distorted, so the clock might still look similar to a sine wave that you see.
But clock signal is not the only issue, the 128 data wires distort the signals just as much. Lengthy and accurate DDR link training is performed by the IMC in order to synchronise all the bits moving in quick succession, close to physical limit.

Yes, I'm just a little surprised to see a sine wave in a digital interface .
I don't know what are they probing, but at that frequency you can't just stick a (differential) probe like that on a production board, moreover without ruining the signal, and above all you won't see anything as clean as displayed.
We should see a DQS pair to have some kind of clock proof but I really would like to see how they did probe it!

Note: a 13 GHz/40GSa oscilloscope should be more than enough to measure a 5 GHz frequency, no ? I'm not talking about jitter analysis.

 

[Mysteoa]

Hmm interesting.

PS2 keyboard and mouse

Very reliable, not an issue.

 

[damric]

But why use a GT 730 with an APU that has clearly superior graphics power?

 

[DR4G00N]

But why use a GT 730 with an APU that has clearly superior graphics power?

IGPU uses system memory so it'd limit the max frequency and It's pretty standard to use a pcie card for display unless you're specifically benching the IGPU.

 

[Wirko]

Yes, I'm just a little surprised to see a sine wave in a digital interface .
I don't know what are they probing, but at that frequency you can't just stick a (differential) probe like that on a production board, moreover without ruining the signal, and above all you won't see anything as clean as displayed.
We should see a DQS pair to have some kind of clock proof but I really would like to see how they did probe it!

Hah, I too want to know how they did that. This probe, for example, is a bit expensive but barely good enough.

Note: a 13 GHz/40GSa oscilloscope should be more than enough to measure a 5 GHz frequency, no ? I'm not talking about jitter analysis.

It does, it just doesn't show the higher frequency components at 25+ GHz (because it can't) and 15 GHz (for whatever reasons), so what remains is a 5 GHz sine wave.
On close inspection, it appears that some was hitting the oscilloscope with a hammer until it gave in and displayed the desired frequency of 5.25 GHz. Notice the crack above the screen.

IGPU uses system memory so it'd limit the max frequency and It's pretty standard to use a pcie card for display unless you're specifically benching the IGPU.

As the only goal was to set the frequency record, wouldn't there be some chance of going even higher with a single DIMM? There would be a bit less load on the memory controller, and beside that, the two DIMMs probably aren't exactly equal, both can reach 10600 MT/s, but one of them might be able to be pushed farther.

 

[damric]

IGPU uses system memory so it'd limit the max frequency and It's pretty standard to use a pcie card for display unless you're specifically benching the IGPU.

Oh I thought the whole point of overclocking RAM to the sky with APUs was because the iGPU needed the bandwidth. I've been doing it wrong I guess

 

[Wirko]

Oh I thought the whole point of overclocking RAM to the sky with APUs was because the iGPU needed the bandwidth. I've been doing it wrong I guess

It's like a beer drinking contest. You don't just drink as much as you need to digest a pizza.

 

[tabascosauz]

Oh I thought the whole point of overclocking RAM to the sky with APUs was because the iGPU needed the bandwidth. I've been doing it wrong I guess

Yes, but using iGPU will hurt absolute frequency. Both for daily achievable speeds and for OCing, using iGPU will hold you back

In a different sense, APUs also want fast RAM at all times even if you are using dGPU, anything to help compensate for 16MB L3.

 

[Outback Bronze]

Very reliable, not an issue.

I think the main problem would be getting a board that supports it and finding the peripherals.

Just had a look see at my Z790 Hero and there ain't no PS2 support. Well check out some of my Apex's later on.

 

[damric]

Yes, but using iGPU will hurt absolute frequency. Both for daily achievable speeds and for OCing, using iGPU will hold you back

In a different sense, APUs also want fast RAM at all times even if you are using dGPU, anything to help compensate for 16MB L3.

On that note, I should probably rebench my Cezannes then lol

 

[Xuper]

What's point of Speed when IF Bandwidth Read can't go above 90Gb/s ? some people from overclock.net forum , There were able to reach 100gb/s or even passed with DDR5 6400mhz.

 

[Synthwave]

High CPU and low graphics card

It doesn't matter. The only purpose of it is to get picture on the display. The simpler, the better.

 

[xrli]

Yes, I'm just a little surprised to see a sine wave in a digital interface .
I don't know what are they probing, but at that frequency you can't just stick a (differential) probe like that on a production board, moreover without ruining the signal, and above all you won't see anything as clean as displayed.
We should see a DQS pair to have some kind of clock proof but I really would like to see how they did probe it!

Note: a 13 GHz/40GSa oscilloscope should be more than enough to measure a 5 GHz frequency, no ? I'm not talking about jitter analysis.

For really high speed signals (multiple GHz and above), they tend to all look sinusoidal or trapezoidal. As long as the signals has a wide opened eye to be triggered on, it's all good. They are probably probing DCK or DQS, with some 8GHz probe? Hard to tell, measuring 5Ghz signal with a 8GHz probe is a bit iffy but it's probably a decent probe, Keysight makes a bunch of solder-on tips specifically for probing DDR memory.
Also, in DDR5 spec, minimum slew rate for both is 2V/ns at 7200MT/s and above, just based on me eyeballing this scope shot, it should be safely within spec even if it's a bit distorted by the slow probe/scope