QUOTE(llk @ Jul 30 2019, 11:29 PM)
Beta driver update for 3rd Gen AMD Ryzen Processors on voltages, clockspeeds, and Destiny 2
https://community.amd.com/community/gaming/...s-and-destiny-2
The good info for you:
QUOTE
As temperature is a function of voltage and frequency, desktop processor temperatures should incrementally decline with the new plan. This is because the processor will spend less time reaching for an unneeded boosted voltage and frequency target. But it goes without saying: any processor will see transient temperature spikes if boost was applied to handle some sort of workload (a browser with tons of tabs, for example).
the interesting stuff:
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THE IMMEDIATE SOLUTION Immediately available for download, a new AMD chipset driver (version 1.07.29.xxx) is designed to relax the processor’s sensitivity level to boost requests while running desktop apps like those described above. It will modify the processor’s behavior in two key ways:
1) We will be adjusting the sensitivity of CPPC2. If you are running the Windows 10 May 2019 Update, 3rd Gen Ryzen processors will now use traditional 15ms clock selection intervals when at idle or low load. This has the effect of filtering many of these short-lived or undesirable boost requests, enabling the processor to be more dormant when the workloads are light.
2) We will also be adjusting how the processor behaves in low or idle workloads. If a processor core is not power gated and sleeping, the processor core will sit at 99% of base clock for low or idle workloads. For example: an AMD Ryzen™ 7 3700X base clock is 3600MHz, so you would see “idle” frequencies around 3564MHz ± 0.08%. This 99% value keeps the active core on a razor’s edge so that your non-trivial applications can easily trigger CPU boost. While boosted, the processor will still control frequency selection in 1ms intervals.
1) seemed to be the obvious solution.
2) sounds rather interesting, lets see how that'll turn out.
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2. If a processor core is truly running no workload, the processor core will be placed into the “Core C6” (CC6) power-gated sleep state. Presently, AMD Ryzen Master is the only tool that can show this CC6 state (Figure 3 below). This state may be opportunistically engaged hundreds of times per second. Voltages in this condition might be as low as 0.200V, and clockspeeds down to 0MHz/Sleep are also possible. a. Sidenote: It is also possible for all cores to be in CC6. If this happens, the processor can selectively shut down uncore components and enter an even deeper state called Package C6 (PC6).
3. Unless a monitoring tool is capable of probing and reporting CC6 sleep state, the tool may simply report out the last voltage and clockspeed that was observed before the processor went to sleep. This may give the illusion that the CPU is “stuck,” which can be interesting if the CPU jumped from high boost to sleep. a. Sidenote: Probing the deeper PC6 state wakes the processor and ruins the power savings. A processor in PC6 will not update your tool(s) until cores are awake.
finally. all this should have been done before the launch. maybe AMD will learn for once and not rush for a silly date such as 7/7 and instead deliver a proper product.
This post has been edited by nrw: Jul 31 2019, 12:17 AM