No deffrence only i5 9600kf has not Integrated GraphicsWhat are the advantages of the i5 9600kf that should make me buy it over the i5 9600k?
No difference at stock: https://ark.intel.com/content/www/us/en/ark/compare.html?productIds=190884,134896
What some believe is the KF will overclock better due to the lack of integrated graphics.
EDIT: technically there shouldn't be a difference at stock performance levels for the CPU; the difference is the presence/absence of integrated graphics.