as the i3-8100 is essentially the old mid-range i5-7600 (4c/4y) repurposed/rebadged as the new entry level, they might have been wise to not allow it to turbo up to any significant clock speeds, lest it bleed off customers from their higher-end processors 6-core with 'overly decent' quad core performance still quite suitable for home/office work, even if quad core is fading fast for gaming...