Intel announced plans to launch its eight-core Core i9-9900KS processor along with its performance specifications quite a while ago, but the company did not disclose the TDP. As the processor will have an all-core base frequency of 4.0 GHz and an all-core turbo of 5.0 GHz, this number is vitally important for motherboard support. This week ASUS released a new BIOS version for some of its motherboards that adds support for the Core i9-9900KS and revealed the number. 

The Intel Core i9-9900 processor has a base frequency of 4.0 GHz as well as an all-core turbo frequency of 5.0 GHz, which essentially makes it an eight-core Coffee Lake Refresh silicon binned to hit higher clocks when cooling is good enough. As it turns out, in a bid to enable higher frequencies, Intel has increased the TDP all the way to 127 W (according to a listing at, which is considerably higher when compared to any existing (or historical) Intel’s CPU for mainstream platforms.

One thing that should be noted is that Intel only guarantees base frequency at a rated TDP (e.g., 4.0 GHz at 127 W), so everything above base (i.e., turbo clocks) means a higher power consumption. As a result, not only will the Core i9-9900KS require a motherboard that can supply 127 W of power and a cooling system that will dissipate 127 W of power, but it will need an advanced platform to hit the turbo clocks. Fortunately, there are plenty of high-end motherboards and coolers around to support the Core i9-9900KS. 

Intel 9th Gen Core 8-Core Desktop CPUs
AnandTech Cores Base
All-Core Turbo Single
Core Turbo
i9-9900KS 8 / 16 4.0 GHz 5.0 GHz 5.0 GHz UHD 630 2666 127 W ?
i9-9900K 8 / 16 3.6 GHz 4.7 GHz 5.0 GHz UHD 630 2666 95 W $488
i9-9900KF 8 / 16 3.6 GHz 4.7 GHz 5.0 GHz - 2666 95 W $488
i7-9700K 8 / 8 3.6 GHz 4.6 GHz 4.9 GHz UHD 630 2666 95 W $374
i7-9700KF 8 / 8 3.6 GHz 4.6 GHz 4.9 GHz - 2666 95 W $374

One thing to keep in mind is that the information about the TDP of the Core i9-9900KS comes from a third party (albeit a very reliable one), not from Intel. Intel has confirmed that the new Core i9-9900KS will be released in October.

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Source: ASUS

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  • bug77 - Wednesday, September 18, 2019 - link

    Yawn, 8c/16t from the other camp can be had for like $300.
  • azfacea - Wednesday, September 18, 2019 - link

    @ 65 watts + pcie gen4 + RGB box cooler
  • - Wednesday, September 18, 2019 - link

    8c/16t at only 4.4GHz peak? No thanks.
  • cwolf78 - Wednesday, September 18, 2019 - link

    You realize that 1 GHz from Intel does not equal 1 GHz from AMD? Are you honestly comparing clock speeds of products with differing IPC? Good grief! Why wouldn't you want equivalent single core performance at a lower clock speed and thus lower power and heat? Man, Intel loves suc... customers like you!
  • Gondalf - Wednesday, September 18, 2019 - link

    According with this site Zen 2 and Skylake are pretty neck to neck in IPC. What is your point??
  • Tek92010 - Wednesday, September 18, 2019 - link

    That's not true. Zen 2 has higher IPC than Skylake. They're neck and neck in Single threaded performance because Intel's current chips higher clockspeed offset the IPC deficit. It's a different story when it comes to anything multithreaded though as Zen 2's SMT and multicore implementation is clearly superior to what Intel currently offers.
  • Opencg - Thursday, September 19, 2019 - link

    Looking at gaming benchmarks the 9700k and 9900k do scale pretty linearly vs the 3700 ghz for ghz. Im not saying that zen2 is bad. Zen2 is the better value by far until you need the utmost highest fps possible.

    I'm just tired of rabid amd fanboys trying to make points that really aren't valid to defend a product which should stand on it's own as the hands down best value in cpu and hands down best performance in multicore.
  • Karmena - Thursday, September 19, 2019 - link

    I am just tired of rabid Intel fanboys parroting about higher frequencies and the best FPS numbers. When you look at absolute numbers and how exactly things work - there is more to it than just frequency. And yes, that is the only thing that people are doing is gaming.
  • Korguz - Thursday, September 19, 2019 - link

    Opencg at least the amd cpus, dont use 150+ watts of power to reach those clock speeds, when they are listed as using 95 watts.
  • AshlayW - Thursday, September 19, 2019 - link

    9900K has no noticable performance advantage in games, over 3700X. Unless you are splitting hairs over 5-10% which honestly is completely unnoticable when both parts are in the triple digits often enough.

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