Can Turbo Boost slow down software with multi-threaded capability build in?

[MCorr18]

I'm thinking of Microsoft R Open 3.5.3 (https://mran.microsoft.com/open), which is a multi-threaded version of R, built with Intel MKL libraries. On my old DELL Windows 7 desktop, cpu utilization was always close to 100% and R Open is twice as fast as R. With my new DELL Latitude 5400 (i5-8250U, Windows 10) laptop, utilization hovers around 50% and R Open is actually slower than R for the same analysis, which lasts between 20 and 30 minutes.

[Alberto_R_Intel]

MCorr18, Thank you for posting in the Intel® Communities Support.

In reference to your question, actually, the Intel® Turbo Boost Technology dynamically increases the processor's frequency as needed by taking advantage of thermal and power headroom to give you a burst of speed when you need it, and increased energy efficiency when you don’t.

Now, specifically for the Microsoft* R Open 3.5.3 software, from our side, we cannot determine if in fact the Intel® Turbo Boost Technology affects or benefits this application. For this specific scenario, the best thing to do is to get in contact directly with Microsoft for them to review the requirements of their software and to confirm how the usage of Intel® Turbo Boost Technology impacts the performance of this application.

In the following link you will find more details about Intel® Turbo Boost Technology 2.0 which is the version supported by Intel® Core™ i5-8250U:

https://www.intel.com/content/www/us/en/support/articles/000007359/processors/intel-core-processors.html

Any questions, please let me know.

Regards,

Albert R.

Intel Customer Support Technician

A Contingent Worker at Intel