Core i7-8086K Overclockability Silicon Lottery Stats
Silicon Lottery, a company that sells delidded and binned chips with warranty, has published additional statistics on Coffee Lake. Specifically, the company has published new information on Intel’s limited-edition Core i7-8086K that were launched last week.
Unlike the 8700K that were binned into five categories from 4.9 GHz to 5.3 GHz, the 8086K can all reach at least 5 GHz.
| 8700K / 8086K Overclockability | ||||||
|---|---|---|---|---|---|---|
| Core i7-8700K (As of 6/08/18) |
Core i7-8086K (As of 6/17/18) |
|||||
| Frequency | % of chips | AVX Offset | Vcore | % of chips | AVX Offset | Vcore |
| 4.9 GHz | Top 99% | -2 | 1.385V | – | ||
| 5.0 GHz | Top 86% | -2 | 1.400V | 100% | -2 | 1.400V |
| 5.1 GHz | Top 50% | -2 | 1.410V | Top 92% | -2 | 1.410V |
| 5.2 GHz | Top 17% | -2 | 1.425V | Top 60% | -2 | 1.425V |
| 5.3 GHz | – | Top 14% | -2 | 1.435V | ||
At top 14% reaching 5.3 GHz or higher, this is double what Silicon Lottery reported with the 8700K last year, confirming that those are, in fact, the highest-binned silicon.
8700Ks Got Better
There have been speculations that Intel is taking out the best binned 8700K to sell as 8086Ks, leaving only inferior silicon to sell as 8700Ks. Silicon lottery numbers for the 8700Ks show that this is not the case. In fact, the 8700K binning has improved since December last year.
| 8700K Overclockability | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 11/11/2017 | 12/01/2017 | 6/08/2018 | ||||||||||||||
| Clock | AVX | % | Vcore | % | Vcore | % | Vcore | |||||||||
| 4.9 GHz | -2 | 100% | 1.387V | Top 99% | 1.387V | Top 99% | 1.385V | |||||||||
| 5.0 GHz | -2 | Top 81% | 1.400V | Top 72% | 1.400V | Top 86% | 1.400V | |||||||||
| 5.1 GHz | -2 | Top 58% | 1.412V | Top 43% | 1.412V | Top 50% | 1.410V | |||||||||
| 5.2 GHz | -2 | Top 30% | 1.425V | Top 16% | 1.425V | Top 17% | 1.425V | |||||||||
| 5.3 GHz | -2 | Top 6% | 1.437V | Top 3% | 1.437V | |||||||||||
The high percentages from November last year can likely be attributed to Intel taking extra caution due to higher variations in early silicon which can also help explain the low availability of initial Coffee Lake SKUs from November.
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