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Intel Core i9-9900KF could offer a slightly higher overclocking potential than the 9900K

The Intel Core i9-9900KF could offer slightly better overclocking potential than the 9900K. (Source: Tom's Hardware)
The Intel Core i9-9900KF could offer slightly better overclocking potential than the 9900K. (Source: Tom's Hardware)
Famed overclocker 'Splave' tried out a small experiment to find out whether the newly announced Intel Core i9-9900KF offered any potential advantages over the 9900K when it came to overclocking. The results showed that the 9900KF can go somewhat higher than a binned 9900K on liquid nitrogen. Although the sample size used in this test is small, it does offer an indication that the disabled iGPU in the 9900KF SKU could be useful in overclocking under extreme cooling.
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Intel announced new CPUs at CES 2019 and one of them was the Core i9-9900KF, which for all intents and purposes is a Core i9-9900K but with the iGPU disabled. The Core i9-9900KF is on pre-order right now but famed overclocker Allen 'Splave' Golibersuch had the chance to take it for a test drive. Apparently, the Core i9-9900KF seems to overclock better under extreme cooling compared to the Core i9-9900K.

Splave had access to 200 9900Ks and 5 9900KFs of which he binned about 23 9900Ks for overclocking under extreme cooling. 19 of these chips could hit 5.3 GHz on water cooling but none could achieve 5.4 GHz. Interestingly, one of the 5 9900KFs could attain the 5.4 GHz mark on water and could even complete 3/4th of the Cinebench R15 at 5.5 GHz on air. 

On liquid nitrogen, the 9900KF that previously could hit 5.4 GHz on water could attain 6.95 GHz in a Cinebench R15 run at 1.73 V, which is 75 MHz faster than what was attainable by one of the binned 9900Ks. There could be several reasons as to why the 9900KF could offer higher overclocking frequencies. It could be better quality silicon, updated stepping, or the extra thermal headroom offered by the disabled iGPU that does not draw power from the socket. Remember that the iGPU in the 9900K continues to draw power even if you use a discrete graphics card unless it is explicitly disabled in the BIOS

While the overall sample size might seem small to conclusively declare the Core i9-9900KF as a winner when it comes to overclocking potential, it does give some indication that the new KF series could prove to be an overclocker's favorite.

That being said, disabling the iGPU does not seem to have had any effect on the prices though, and the 9900KF is available for pre-order for US$582.50 — US$52 more than the 9900K itself.

Check out the Source link below for binning results and benchmark values, and let us know what you think.

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Vaidyanathan Subramaniam
Vaidyanathan Subramaniam - Managing Editor - 1357 articles published on Notebookcheck since 2012
Though a cell and molecular biologist by training, I have been drawn towards computers from a very young age ever since I got my first PC in 1998. My passion for technology grew quite exponentially with the times, and it has been an incredible experience from being a much solicited source for tech advice and troubleshooting among family and friends to joining Notebookcheck in 2017 as a professional tech journalist. Now, I am a Lead Editor at Notebookcheck covering news and reviews encompassing a wide gamut of the technology landscape for Indian and global audiences. When I am not hunting for the next big story or taking complex measurements for reviews, you can find me unwinding to a nice read, listening to some soulful music, or trying out a new game.
contact me via: @Geeky_Vaidy
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2019 03 > Intel Core i9-9900KF could offer a slightly higher overclocking potential than the 9900K
Vaidyanathan Subramaniam, 2019-03-24 (Update: 2019-03-24)