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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. At its peak, the 3950X draws 137 W for the cores when 10 cores are loaded. 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. Unless you transcode video with the right software your average power consumption will be much lower.We show energy consumption based on a the entire PC (motherboard / processor / graphics card / memory / SSD). 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. We might be seeing something similar here with AMD now.For example, here’s our 16-core 1950X data. The chip as a whole hits ~144-145W at that level, well above the 105 W TDP rating on the box and bang on the 142W PPT. 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 [ 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. We kind of already saw this on the Ryzen 9 3900X in that review, where the peak power of the chip happened when 10 cores were loaded, not the full 12 cores. Power consumption of the new Ryzen 3900X and 3700X are of particular interest because it’s a very key aspect of the new generation chipsets, and … In the simplest terms, this rating quantifies the required performance of … 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. 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). This is partly why AMD is recommending a large liquid cooler for this chip. This is perhaps indicative of two things: firstly, that Intel’s turbo policy was creating 95 W TDP chips that consumed 160W in turbo modes and AMD believed it had headroom, or pushing these new chips to the edge required a little more power.It is worth noticing that when up to two cores are loaded, we see each core getting around 18 W of power, but when all the cores are loaded, we are seeing between 6.9 W and 7.6 W. This is compared to the 12-core 3900X, which has about 17.5 W per core initially, and falls down to 10 W per core. AMD Ryzen 7 3700X & Ryzen 9 3900X review - Power Consumption and temperatures by Hilbert Hagedoorn. 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. Next, to that, we stress all CPU cores 100% and thus show peak power consumption. If we saw the same thing with the Ryzen 9 3950X, then it pretty much confirms the hypothesis. 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. Your attached components use power but your motherboard can also have additional ICs installed like an audio controller, 3rd party chips, network controllers, extra SATA controllers, extra USB controllers, and so on. For peak single core frequencies, we were able to see 4525 MHz on the HP plan, and 4650 MHz on the RHP plan. 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. Between 3 cores and 8 cores loaded, we get 4225 MHz to 4125 MHz (100 MHz range), and even at all cores loaded, we’re seeing 3875 MHz, well above the 3500 MHz base frequency listed on the box.While Intel’s TDP represents the internal power measured for long and sustained high performance (also motherboard dependent), AMD’s metric is more akin to actual thermal cooling requirements for a given cooler rating.