I was the most impressed by the final test result: Prime 95 Small FFT with AVX at 5 GHz. Running a sustained 355W load with high yet stable temperatures and without any errors is just amazing. The upgraded VRM of the Z590 Carbon EK X compared to the Z490 Carbon EK X certainly did not disappoint. Cutress, Ian (October 8, 2018). "Intel Announces 9th Gen Core CPUs: Core i9-9900K (8-Core), i7-9700K, & i5-9600K". AnandTech. First, setting the turbo ratio offset uses the default method of applying turbo ratios, meaning the frequency is determined by how many cores are active. In simple terms, processor manufacturers only ever guarantee two values which are tied together - when all cores are running at base frequency, the processor should be running at or below the TDP rating. All turbo modes and power modes above that are not covered by warranty. Intel kind of screwed this up with the Tiger Lake launch in September 2020, by refusing to define a TDP rating for its new processors, instead going for a range. Obfuscation like this is a frustrating endeavor for press and end-users alike.

When we do the same comparison for the Core i9-10850K however, the results are a bit more alarming. In more lightly threaded workloads, the 10850K actually seems to use less power, which might indicate that this could be a current density issue being the prime factor in binning.

Max Turbo Frequency

Intel® Iris® Xe Graphics only: to use the Intel® Iris® Xe brand, the system must be populated with 128-bit (dual channel) memory. Otherwise, use the Intel® UHD brand. First, we will increase the ring interconnect frequency. Then, we will also try some memory tuning.

By setting Adaptive Voltage to 1.4V we lift the voltage for ratios of 52X and up. This is particularly necessary to ensure stability at the highest ratio we have set: 54X for up to 2 cores. It will also be applied when 3 cores are running at 52X. However, for the other configurations, from 4 cores at 51x to 10 cores at 50x, the default vf curve will be followed. The processor has a 3.60 GHz base frequency and supports a 5.20 GHz single-core max turbo frequency. Cutress, Ian (October 28, 2019). "The Intel Core i9-9990XE Review: All 14 Cores at 5.0 GHz". AnandTech . Retrieved November 2, 2019. Intel classifications are for general, educational and planning purposes only and consist of Export Control Classification Numbers (ECCN) and Harmonized Tariff Schedule (HTS) numbers. Any use made of Intel classifications are without recourse to Intel and shall not be construed as a representation or warranty regarding the proper ECCN or HTS. Your company as an importer and/or exporter is responsible for determining the correct classification of your transaction.If you're after better power efficiency, and thus a cooler and quieter machine that still has plenty of performance, turn to AMD's Ryzen line of chips. As you can see in our final two scatter charts, which measure the cumulativeamount of energy required to perform an x264 and x265 HandBrake workload, respectively, AMD still holds the unequivocal lead. Core i9-10850K Conclusion All models support: SSE4.1, SSE4.2, AVX, AVX2, FMA3, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), Intel VT-x, Intel VT-d, Hyper-threading, Turbo Boost 3.0 (2.0 for embedded), AES-NI, Smart Cache, Thread Director, DL Boost, GNA 3.0, and Optanememory. All models support up to DDR5-5200, LPDDR5-6400, DDR4-3200, or LPDDR4X-4266 memory, up to 16 lanes of PCI Express 5.0, and up to 4 lanes of PCI Express 4.0.