This model costs just 3.2 dollars.
This model costs just 3.2 dollars.
I ran a test using my other i7 8086k/Hero X configuration in 2018. Each core could independently reach 5ghz. The i9 9900k behaved the same way. Under all core loads, clock speeds dropped. All my CPUs had been overclocked at the time, so I paid little focus to the stock settings.
For overclock adjustments, refer to the settings you configure. My 8700k runs at a fixed 5ghz consistently. The stock 8086 setting suggests around 4.3ghz for all-core loads, which aligns with typical boost expectations. This is still significantly below the 4ghz base speed. With my 10900KF, I modified the turbo tables to allow occasional use of a 53x multiplier. Under load, it maintains 51x performance as long as cooling functions properly. However, overclocking won’t mirror the base frequency; this is likely what the original question intended. During stock operation, the base clock will only reach its peak when hardware or thermal limits aren’t restricting it. With a capable motherboard, good power delivery and cooling, it should hit the maximum all-core speed of 4.6ghz until the workload ceases or TAU PL2 is reached (if applicable).
My i7 8086ks featured 5 and 5.1 overclocks, and they didn’t require any AVX offsets, maintaining a steady 5 or 5.1ghz. I didn’t focus on their stock results, but I did capture a screenshot of the setup and that matched my expectations. I’m still running TVB on my i9 10900k and i9 10900kf without applying any Intel restrictions. Keeping them under 70c during games is quite achievable, which is why they’ll remain that way now. Both models consume less power in games compared to the 5900x, which was unexpected.
The only times my 10900K reaches warmth are when a game applies shader optimizations, it could reach the 70s. In high CPU games such as AC titles or CP2077, it stays in the 70s. Under typical gaming settings, it's around the 50s or 60s at 5.1ghz. Occasionally it hits 5.2ghz, but even in lightly threaded titles like FF14 with OS overhead, it drops to just enough cores to maintain 5.1hz. I managed to push it to 5.3ghz all-core by turning off HT, which seems like a better overall choice for gaming, though I wondered why disable an entire feature just for a few hundred megahertz.
I enjoy gaming at 4K resolution, so an overclock isn't necessary right now. At that quality the i9-9900K performs similarly to the 5900X. The six cores were boosted to handle the 2080 Ti, and the original 9900K ran at double speed with a 1440p monitor at 144Hz. This could shift with the upcoming 40-series cards. Only time will tell.