AMD Ryzen 3000: How high does Zen 2 clock?

AMD Ryzen 3000: Wie hoch taktet Zen 2 in welchem Rechner?

tl; dr: AMD Ryzen 3000 (test) is a big hit, even if teething troubles with the BIOS and the delivery situation clouded the start. And then there’s the discussion about the advertised maximum turbo speed, which picked up speed on the weekend. BitcoinMinersHashrate provides an overview and once again calls for testing.

AMD Ryzen 3000 still dominates the reporting even seven weeks after the launch, the interest in Zen 2 is undiminished. Nevertheless, many users now feel reminded of the teething problems of the first generation. The ecosystem of processor, mainboard, BIOS and AGESA code still leaves an unfinished impression in many places.

The discussion about the promised turbo clock

For weeks, the discussion has also been about the maximum turbo clock speeds promised by AMD. The official maximum clock rate refers to the maximum clock rate that can be achieved by Ryzen 3000 with Zen 2 under load on one core. Many users have never seen it in relevant tools, others have. So far, it has not been possible to determine whether the CPU, the mainboard or its BIOS and its AMD microcode AGESA are responsible for this. For a short time, AMD only said that the maximum turbo speed was possible under standard conditions. AMD didn’t say what they look like.

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The topic was picking up speed at the weekend. The testimony of an Asus employee who was in the forum of had commented on the turbo clock speeds of AMD Ryzen 3000. His claim: AMD slowed down the turbo clock with new AGESA versions. AMD was too aggressive with the turbo clock in the older versions, with a view to long-term reliability it was now designed lower (than advertised).

They were being too aggressive with the boost previously, the current boost behavior is more in line with their confidence in long term reliability and I have not heard of any changes to this stance, tho I have heard of a ‘more customizable’ version in the future.

shamino1978 in the forum

Nothing will change about the new direction of the AGESA code towards more reliability due to less aggressive turbo clock rates, at least not with AGESA, the Asus employee continues.

Every new BIOS I get asked the boost question all over again, I have not tested a newer version of AGESA that changes the current state of 1003 boost, not even 1004.

shamino1978 in the forum

Available tests do not support the claim

But after a closer inspection, the Asus employee’s statement does not stand up to the comparison with available data. Like a broad-based test by Hardware unboxed has resulted in an AMD Ryzen 3800X, in turn advertised by AMD with a maximum of 4.50 GHz turbo clock, on fourteen different mainboards between 4,370 MHz and 4,550 MHz and this completely independently of the AGESA version used. On the contrary, the Gigabyte X570 Aorus Extreme achieves the highest turbo clock of 4.55 GHz with the latest AGESA code – which is even higher than the promised turbo. The test does not give a clear picture.

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Even BitcoinMinersHashrate cannot confirm the supposedly “bridled” turbo clock of AMD Ryzen 3000 with the latest AGESA versions in a first test. In a benchmark course consisting of the single and multicore test from Cinebench R15 and the Corona 1.3 benchmark, the AMD Ryzen 3800X achieved a turbo speed of 4.525 GHz with load on one and 4.275 GHz with load on all cores. The processor itself ran with auto settings and a synchronous fabric clock (FCLK) of 1,800 MHz with 32 GB DDR4-3600 CL14-15-15-30 1T on an ASRock Fatal1ty X470 Gaming K4 with the latest AGESA update 1.0. The Turbo clock rates were measured with HWiNFO and the AMD Ryzen Master in the latest version

The 3800X with a Turbo clock of 4.525 GHz on one and 4.275 GHz on all 8 cores

Among other things, Reddit is tested diligently and clock rates are compared. Here, too, the assumption is confirmed that the mainboard in conjunction with AMD Ryzen 3000 is primarily responsible for the level of the turbo clock rates. With the new AGESA update, AMD has obviously not put ankle cuffs on the CPUs – or at least no flat rates. The decisive influencing factor has not yet been clarified.

I don’t see much of anything in here that’s consistent enough to call a conclusive impact at all. Some of the performance increased, other decreased, but the average was 0.16% gain and nothing lost more than 1.44%. Clocks seemed to be generally a smidge lower, but notably I never broke 4.55 in * either * config, maxes were generally the same across the board.

defiancecp on Reddit

The editorial team would also like to ask the community from the BitcoinMinersHashrate forum for their support and call on them to share their experience with the turbo clock speeds of their own Ryzen 3000 CPUs. The single and multi-core benchmarks of Cinebench R15 and R20 are very suitable for this project and can be monitored and logged with the latest version of HWiNFO and the AMD Ryzen Master.

Background processes for the benchmark should be ended as far as possible, since they can have a strong influence on the maximum clock in a single-core run. Windows updates in the background should also be carefully observed. Furthermore, with the information about the clock rates achieved, information about the system (BIOS settings, cooling) and, optimally, the voltage of the CPU under load should also be made.

Update 8/26/2019 4:29 PM

Update 29.08.2019 9:25 a.m.

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  • AMD Ryzen Master

    3.8 stars

    AMD Ryzen Master is a tool for overclocking AMD Ryzen processors on Windows.

    • Version, Win 10 German
  • HWiNFO

    4.7 stars

    HWiNFO provides information about all hardware components of a PC and their status.

    • Version v6.20 build 4030
    • Version v6.21 build 4040 beta
    • Version v3.73 build 1220

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