Both models
i9-9900KF and
i9-9900K are based on
Coffee Lake architecture.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
Using the multithread performance as a reference, the i9-9900KF gets a score of
592.9 k points while the i9-9900K gets
545.3 k points.
Summarizing, the
i9-9900KF is
1.1 times faster than the
i9-9900K. To get a proper comparison between both models, take a look to the data shown below.