Lenovo's new ThinkPads T14 & T15 without working Turbo Boost
Just arrived, but obviously with software issues: During the pre-measurements of the two new ThinkPad T-series models T14 and T15, we noticed that the Intel processors cannot use their Turbo Boost and only run at the base clock. The Core i5-10210U of the T14 stops at 1.6 GHz, the Core i7-10510U at 1.8 GHz (both single and multi-core, both battery and mains). We checked the BIOS and drivers on both models and they are up to date. Lenovo's intelligent cooling feature, which was configurable in Lenovo's Vantage app in the past, is now integrated into the Windows performance slider, so this is not the problem, either. There is also no problem with the factory Windows installation, because one of our review sample was shipped without preloaded Windows.
This means you can currently only use a small part of the performance. At 4x 1.6 GHz, the CPU only consumes about 8.5 Watts, so we are quite a bit off the preset limit at 25 Watts. The Cinebench Multi test only determines just 325 points, so only roughly 50 % of the expected performance. The Core i7 of the new ThinkPad T15 is currently limited to 1.8 GHz.
We are in contact with Lenovo and this should only be a software problem, but this should not happen on a familiar device (chassis is identical to the predecessor) with comparable processors.
By the way, the new 8th generation ThinkPad X1 Carbon with the Comet Lake U processor can utilize its Turbo Boost.
Update: A reset of the BIOS settings seems to have fixed the problem and both processors can now utilize the Turbo Boost. Thanks to our reader RF for the note.