Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
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Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#2I don't get it. If it has an all-core frequency of 5GHz, doesn't that mean they've left some single-core boost on the table? Or have they hit some other limit and this part is basically free of thermal limits?
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#3Still marketing SMT. Interesting move.
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#4I don't get it. If it has an all-core frequency of 5GHz, doesn't that mean they've left some single-core boost on the table? Or have they hit some other limit and this part is basically free of thermal limits?
Yeah it's weird. Why not set the single-core turbo higher?
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#5I don't get it. If it has an all-core frequency of 5GHz, doesn't that mean they've left some single-core boost on the table? Or have they hit some other limit and this part is basically free of thermal limits?
I believe Intel processors can't boost all cores. At least some tests I have done with my notebook processor (i7 8550u - 4c8t) with `stress -c n`, being n the number of processors, show that for n > 1 the processor doesn't reach 4ghz, only about 3.7ghz, while the package temps are still at around 70 °C. Only a single core on full load reaches 4ghz before throttling.
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#6Now you can run the speculation mitigations much more quickly!
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#7I don't get it. If it has an all-core frequency of 5GHz, doesn't that mean they've left some single-core boost on the table? Or have they hit some other limit and this part is basically free of thermal limits?
I believe Intel processors can't boost all cores. At least some tests I have done with my notebook processor (i7 8550u - 4c8t) with `stress -c n`, being n the number of processors, show that for n > 1 the processor doesn't reach 4ghz, only about 3.7ghz, while the package temps are still at around 70 °C. Only a single core on full load reaches 4ghz before throttling.
Yes, there's a table in the firmware that can tell you the maximum speed with N active cores. This one though has the same speed for all values of N.
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#8I don't get it. If it has an all-core frequency of 5GHz, doesn't that mean they've left some single-core boost on the table? Or have they hit some other limit and this part is basically free of thermal limits?
I believe Intel processors can't boost all cores. At least some tests I have done with my notebook processor (i7 8550u - 4c8t) with `stress -c n`, being n the number of processors, show that for n > 1 the processor doesn't reach 4ghz, only about 3.7ghz, while the package temps are still at around 70 °C. Only a single core on full load reaches 4ghz before throttling.
> I believe Intel processors can't boost all cores.
And that's exactly what shereadsthenews's point is. They can't boost all cores, and they are not boosting any core beyond the all-core capacity if it's truly a CPU that runs at 5 GHz all the time.
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#9I don't get it. If it has an all-core frequency of 5GHz, doesn't that mean they've left some single-core boost on the table? Or have they hit some other limit and this part is basically free of thermal limits?
I’d guess that the upper limit is stability rather than thermal capacity at that point