Intel Core i9-12900K up to 36% faster in Cinebench R20 in Maximum Turbo Power (PL2) mode

Published: 31st Oct 2021, 11:26 GMT   Comments

Intel Maximum Turbo Frequency delivers up to 36% more performance for i9-12900K in Cinebench

With the announcement of 12th Gen Core, Alder Lake CPUs Intel said farewell to the traditional nomenclature describing processor power, namely Thermal Design Power (TDP). This value, typically referred to as PL1 (Power Limit 1) has now been renamed to Processor Base Power (PBP). Intel CPUs have been known to notoriously go beyond advertised TDP, which was often caused by the extended duration (Tau) of PL2 (Power Limit 2) by motherboard vendors, to the point where they become overclocking and marketing features.

Intel is now moving away from TDP nomenclature in favor of PBP and Maximum Turbo Power (MTP), previously referred to as PL2. Which is now being used by Intel in marketing slides, including official performance metrics. With all that in mind, reviewers will have to ensure to use the correct mode when comparing with competing solutions to avoid comparing CPUs in different power modes. This could skew the results in favor of more power-hungry CPUs.

Intel Alder Lake Power Naming Convention, Source: Intel

Detailed performance metrics are still under an embargo, which is why we can only find not-so-accurate official performance charts compiled before Microsoft and AMD released an L3 latency fix for Ryzen CPUs on Windows 11 operating system. Luckily for us, Wofstame, who is Lenovo China Gaming Desktop Product Planning Manager, mistakenly posted a chart featuring a comparison of Alder Lake CPUs in PL1 and PL2 modes in Cinebench R20 multi-thread benchmark. This demonstrates how much more performance would Maximum Turbo Power mode give to each of the three new 12th Gen Core K-series CPUs.

  • Intel Core i9-12900K: PL2 – 10180, PL1 – 7492, PL2/PL1 – 136%
  • Intel Core i7-12700K: PL2 – 8677, PL1 – 6689, PL2/PL1 – 130%
  • Intel Core i5-12600K: PL2 – 6551 , PL1 – 5953 , PL2/PL1 – 110%

According to those results, a flagship 16-core Core i9-12900K would see 36% higher performance in PL1=PL2 mode compared to stock settings, whereas the Core i7-12700K would be 30% faster. Interestingly, the 10-core i5-12600K would only see a 10% benefit when forcing MTP mode.

Intel 12th Gen Core “Alder Lake” Cinebench R20, Source: Wolfstame/Lenovo

Intel Alder Lake-S CPUs are now to launch on November 4th. Retailers have already begun taking preorders and reviewers are finishing their tests which should go live at the same time as sales. This, however, has not prevented even the US biggest retailers from shipping the CPUs early to customers, who are now forced to wait for their Z690 motherboard to arrive.

Intel 12th Gen Core Series (Alder Lake-S)
VideoCardzCores / ThreadsE-Core (Base/Boost)P-Core (Base/Boost)Turbo Boost Max 3.0PL1/PL2
PBP/MTP
MSRP
i9-12900K
 
8C+8c/24T
 
2.4/3.9 GHz
 
3.2/5.1 GHz
 
5.2 GHz
 
125/241W
 
589 USD
i9-12900KF
 
8C+8c/24T
 
2.4/3.9 GHz
 
3.2/5.1 GHz
 
5.2 GHz
 
125/241W
 
564 USD
i7-12700K
 
8C+4c/20T
 
2.7/3.8 GHz
 
3.6/4.9 GHz
 
5.0 GHz
 
125/190W
 
409 USD
i7-12700KF
 
8C+4c/20T
 
2.7/3.8 GHz
 
3.6/4.9 GHz
 
5.0 GHz
 
125/190W
 
384 USD
i5-12600K
 
6C+4c/16T
 
2.8/3.6 GHz
 
3.7/4.9 GHz
n/a
 
125/150W
 
289 USD
i5-12600KF
 
6C+4c/16T
 
2.8/3.6 GHz
 
3.7/4.9 GHz
n/a
 
125/150W
 
264 USD

Source: Wolfstame (Weibo) (chart has been removed from the source) via @9550pro




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