Welcome to the Dell Community @Majorsick 

I see the Core i9-10900k but not the KF

https://www.dell.com/support/manuals/en-us/alienware-area51m-r2-laptop/alienware-area-51m-r2-setup-and-specifications/processor?guid=guid-8f9ccf13-6058-450a-ab47-ab607f32696b&lang=en-us

Best regards,

U2

EDIT:

In fact they are about the same but the i9-10900K has more options.

https://ark.intel.com/content/www/us/en/ark/products/199332/intel-core-i9-10900k-processor-20m-cache-up-to-5-30-ghz.html

i9-10900KF

https://ark.intel.com/content/www/us/en/ark/products/199331/intel-core-i9-10900kf-processor-20m-cache-up-to-5-30-ghz.html

Thank you @U2CAMEB4ME  for the welcome.

Basically, the 10900KF is the same as the 10900K without the onboard graphics, Being as the Gsync stops the use of the onboard graphics. I was considering optioning into a binned 10900KF delidded, typically decrease anywhere from 5°C to 12°C for Intel 10th generation CPU's.

There's a decent group of guys with 51M's over on the Alienware forum at NotebookReview. I'd suggest asking over there. They will definitely know. 

Those dudes at the notebook review forums are the best! They helped me get my Alienware 15 r1 to 4.1Ghz and then my 18 to 5Ghz!

That’s great. Thermals should be better since there’s no integrated gpu,