The Ryzen 9 3950X looks to bridge the gap between mainstream and high-end desktop platforms and is the most expensive mainstream platform … 292355744930110 4 months ago Look at the Ryzen … The maximum power available to a processor should be the package, of which the cores take up most of the sum.For regular readers, we have covered the discrepancy in how different companies ascribe the Thermal Design Power to their product lines:With the Ryzen 9 3900X, with 12 cores, we saw the same thing again.With our Ryzen 9 3950X, the on-the-box single core turbo frequency is listed as 4.7 GHz. These values on the RHP power plan were very instantaneous, as when we put a consistent single thread load on the core, the frequencies very quickly came down.Despite this being a 105 W TDP chip, the cores at full load saw 122 W peak, with the rest of the chip getting ~24 W, making for an overall 146 W power draw (as measured by the processor internally). In the simplest terms, this rating quantifies the required performance of … At its peak, the 3950X draws 137 W for the cores when 10 cores are loaded. We tested using the ASRock X570 Taichi motherboard, a very high-end product, using Windows 10 v1909 on AGESA 1004B, on both the High Performance (HP) power plan and the Ryzen High Performance (RHP) power plan. This would indicate a 3+2+3+2 mix on the CCXes, which is perhaps an inflection point when current densities start getting much higher and per-core power has to be reduced to ensure everything is still working optimally. In our Ryzen 7 3700X review, with the 12-core processor, we saw this:At its peak, the 3950X draws 137 W for the cores when 10 cores are loaded. Buy AMD Ryzen 9 3950X 16-Core, 32-Thread Unlocked Desktop Processor, Without Cooler: ... Max temps: 95°C 4.7 GHz max boost, unlocked for overclocking, 72 MB of game cache, ddr-3200 support ... Power consumption is amazingly low for such a powerful CPU. Keep in mind that we measure the ENTIRE PC, not just the processor's power consumption. That being said, the power consumption of AMD’s first and second generation Ryzen processors has often been parallel to the TDP rating on the box, with the CPU levelling out to the TDP value as we load up the cores with a high energy workload.When looking at both the cores-only power and the CPU total power, we get a peak with this processor when 10 cores are loaded.
Next, to that, we stress all CPU cores 100% and thus show peak power consumption. This is also how we reached the 18 W per core value for 1-2 core loading in the graphs above, indicating that in order to get a sustained 4.7 GHz single core frequency, AMD would need to drive around 21-24W to the core in order to get that value. Also, coolers (RPM) react differently to TDP and variables like BIOS. AMD Ryzen 7 3700X & Ryzen 9 3900X review - Power Consumption and temperatures by Hilbert Hagedoorn. For peak single core frequencies, we were able to see 4525 MHz on the HP plan, and 4650 MHz on the RHP plan. It's important to remember that TDP isn't a one-to-one measure of power consumption. The Threadripper 1950X is a 180 W chip, and we saw the cores take a total of 134 W.This shows that Zen 2 has a different strategy to the previous Zen chips when it comes to how AMD is mixing the difference between TDP and PPT. This is partly why AMD is recommending a large liquid cooler for this chip. The power differential between 10-core use and 16-core use is almost 20W, so users that don’t always use all the cores all the time might exhibit good per-thread performance up to 10 core workloads.The Ryzen 7 3700X is a 65 W processor, and yet we can see that the cores total up to 74 W by themselves, with the rest of the chip taking another 16W or so, totalling 90 W for the whole chip. So there is just one variable to monitor, ergo what you see is what you get.I want to make it very clear that power consumption measurements will differ per PC and setup. In these tests, we use an affinity mask to limit how many cores are active while we run POV-Ray, and take the reading about 30 seconds into the benchmark, which allows a core to experience a form of heat soak and reach a reliable current density. Guru3D.com » Review » AMD Ryzen 9 3950X review » Page 7 AMD Ryzen 9 3950X review - Power Consumption and temperatures by Hilbert Hagedoorn on: 11/15/2019 03:40 PM [

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