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Intel Core i5-9600K pushed to 5.2 GHz on air with benchmarks

The i5-9600K looks like a good alternative for AMD's Ryzen 5 2600X, even though it lacks 6 threads. (Source: Intel)
The i5-9600K looks like a good alternative for AMD's Ryzen 5 2600X, even though it lacks 6 threads. (Source: Intel)
Thanks to the new STIM material, the i5-9600K offers excellent overclocking potential, reaching 5.2 GHz on all cores using a high-end air cooler. The temperatures were a bit over 90C, so a water-cooling solution might be more appropriate, still it is quite impressive how the STIM material helps with the overclocking procedure. The OC-ed processor performed similar to a stock i7-8700.
Bogdan Solca,
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Intel’s gen 9 mainstream CPU lineup is launching this week, and leaked benchmarks are already popping up here and there. The i9-9900K was overclocked and benchmarked by Intel itself right after the official announcement, while the i7-9700K got leaked benchmarks even before the announcement, but what about the i5-9600K? The most affordable of the new unlocked mainstream CPUs from Intel was recently overclocked by the guys over at the Chinese site Douyu.com, who also posted some synthetic benchmarks (unfortunately no gaming benchmarks as of yet).

The i5-9600K integrates 6 cores and 6 threads, so it can be considered a successor for the i5-8600K. With higher clocks and better overclocking potential, the i5-9600K was pushed to 5.2 GHz on all cores @1.507 V, although the overall temperature was sitting at a little over 90C using a high-end air cooler, so it clearly is advisable to opt for a water-cooling solution. For its price point of US$280 (Newegg), the i5-9600K certainly feels like it could go head to head with the Ryzen 5 2600X from AMD, as it has higher clocks, but lacks the additional 6 threads.

Here are the i5-9600K stock versus OC results for a few synthetic benchmarks:
•    Cinebench R15: Stock – 1034 CB / 5.2GHz – 1207 CB
•    X264 HD Benchmark: Stock – 37.55 fps / 5.2G – 43.76 fps
•    CPU-Z: Stock – 528.8 Single Thread / 2919.1 Multi-Thread
                 5.2G – 619 Single Thread / 3579.7 Multi-Thread

Performance-wise, the OC results are on par with what a stock i7-8700 would achieve, but one must factor in a good cooling solution, which, in the end, increases the overall price to what said i7 would cost.

Temperatures and voltages in OC mode (Source: Douyu)
Temperatures and voltages in OC mode (Source: Douyu)

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Bogdan Solca
Bogdan Solca - Senior Tech Writer - 1541 articles published on Notebookcheck since 2017
I first stepped into the wondrous IT&C world when I was around seven years old. I was instantly fascinated by computerized graphics, whether they were from games or 3D applications like 3D Max. I'm also an avid reader of science fiction, an astrophysics aficionado, and a crypto geek. I started writing PC-related articles for Softpedia and a few blogs back in 2006. I joined the Notebookcheck team in the summer of 2017 and am currently a senior tech writer mostly covering processor, GPU, and laptop news.
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2018 10 > Intel Core i5-9600K pushed to 5.2 GHz on air with benchmarks
Bogdan Solca, 2018-10-16 (Update: 2018-10-16)