The idea of the chip’s frequency dependence on its temperature (to maximize its potential, but at the same time keep consumption within certain limits) is not a new idea in the world of personal computers, dating back to at least 2003, when ATi released the Radeon 9800 XT, which supported this feature. . Leaving aside simple overheating protection, Intel began using it in 2018 for the mobile generation of 14nm processors. Coffee Lake-H. The top models at the time had a boost set to 4.6 GHz, but if the processor temperature did not exceed 53 ° C, they could set a boost of up to 4.8 GHz. Intel called it “Thermal Velocity Boost” and included these values in the official specifications.
In 2020 with 14nm generation processors Comet Lake has expanded Thermal Velocity Boost (TVB) to the desktop. The principle was the same as with laptops, with only minor differences. The limit increased from 53 ° C to 70 ° C and the difference was at 100 MHz clock (5.2 vs. 5.3 GHz, depending on temperature). It worked the same way for the last 14nm generation for desktop: Rocket Lake. There, it was supplemented by the so-called Adaptive Boost focused on the load of a larger number of cores (it increased the clock cycles by up to 300 MHz, virtually regardless of temperature – if the power supply circuit boards allowed it).
With last year’s release of the 10nm (“Intel 7”) desktop models Alder Lake but the TVB disappeared from the specifications. The older leaks seemed to run at up to 5.2 GHz and the TVB would move to the mandatory 5.3 GHz, but official specifications no longer stated 5.3 GHz or TVB support. Maybe Intel felt that it didn’t need higher single-core power, maybe Intel didn’t plan TVB from the beginning, and the mention of 5.3 GHz arose as information noise, anyway, Intel released this generation without TVB.
Briefly announced OEM processor, Core i9-12900KS, but TVB will support. ASRock materials even speak of “Enhanced Thermal Velocity Boost”. In what direction will it be “Enhanced”, ie we do not know yet. However, ETVB’s support for this model could explain why at first the sources talked about maintaining a 5.2GHz single-core boost and later up to a 5.5GHz single-core boost: That difference (300 MHz) could be just the benefit of ETVB.
The Core ii9-12900KS processors will be released for OEM markets at the end of the first quarter (ie the end of March), when official specifications are likely to be published.
Source: Diit.cz by diit.cz.
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