Intel Core i9-9900K

CPU Description

Release & Generation

• Release date: October 2018
• CPU generation name: Coffee Lake
• Intel’s first mainstream i9 processor; it increased the core count from 6 to 8 while remaining on the 14nm++ process

Core Configuration & Speeds

• 8 Performance-cores + 0 Efficiency-cores = 8 cores / 16 threads
• Total cache: 16 MB Intel Smart Cache
• Max turbo/boost clock: Up to 5.0 GHz
• Base or rated power (TDP): 95 W TDP

Memory Support

• DDR4-2666 (Dual-channel)

Socket

• LGA 1151
• Requires Intel 300 Series chipset motherboards (e.g., Z390, or Z370 with BIOS update)

Variants

• i9-9900K: Unlocked for overclocking; includes integrated UHD Graphics 630
• i9-9900KF: Unlocked for overclocking; lacks integrated graphics
• i9-9900KS: Special Edition with a higher 5.0 GHz all-core turbo boost and increased 127 W TDP
• i9-9900: Locked multiplier (no overclocking); lower 65 W power target and lower 3.1 GHz base clock
• i9-9900T: Low-power variant optimized for small form factors; 35 W TDP with reduced clock speeds