Intel Core i7-8700K vs Intel Core i9-9900K

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Core i7-8700K compared with Core i9-9900K

	IntelCore i7-8700K	IntelCore i9-9900K
Overview
Released
Released	October 2017	October 2018
Cores and clocks
Cores
Cores	6	8 (better)
Threads
Threads	12	16 (better)
Base clock
Base clock	3.7 GHz	3.6 GHz
Boost clock
Boost clock	4.7 GHz	5 GHz (better)
L3 cache
L3 cache	12 MB	16 MB (better)
Cores
Cores	6 cores and 12 threads; Coffee Lake architecture; multiplier unlocked.	8 cores and 16 threads; Coffee Lake architecture; multiplier unlocked. Intel’s 19 October 2018 public news notice states that the processors ship that day; the 8 October announcement opened preorders.
Clocks
Clocks	3.7 GHz base; up to 4.7 GHz Intel Turbo Boost 2.0.	3.6 GHz base; up to 5.0 GHz Intel Turbo Boost 2.0.
Graphics and AI
Built-in graphics
Built-in graphics	Yes	Yes
Graphics
Graphics	Intel UHD Graphics 630; 350 MHz base, up to 1.2 GHz; Quick Sync Video; up to three displays.	Intel UHD Graphics 630; 350 MHz base, up to 1.2 GHz; Quick Sync Video; up to three displays.
Platform
Socket
Socket	LGA1151	LGA1151
Base power
Base power	95 W	95 W
Unlocked
Unlocked	Yes	Yes
Cooler in the box
Cooler in the box	No	No
Memory support
Memory support	Up to 128 GB on the current Intel specification page; two channels; DDR4-2666; 41.6 GB/s; ECC not supported.	Up to 128 GB on the current Intel specification page; two channels; DDR4-2666; 41.6 GB/s; ECC not supported.
PCIe
PCIe	PCIe 3.0; 16 CPU lanes: 1 × 16, 2 × 8 or 1 × 8 + 2 × 4. This excludes chipset lanes.	PCIe 3.0; 16 CPU lanes: 1 × 16, 2 × 8 or 1 × 8 + 2 × 4. This excludes chipset lanes.
Chipsets
Chipsets	Intel 300-series motherboards; Z370 at launch. Older 100- and 200-series boards are incompatible despite sharing the LGA1151 socket (TechPowerUp and PC Gamer).	Intel 300-series motherboards, with appropriate BIOS support; Z390 was introduced alongside this generation.
Process
Process	14 nm; 37.5 × 37.5 mm package; 100°C maximum junction temperature.	14 nm; 37.5 × 37.5 mm package; 100°C maximum junction temperature.
Cooler
Cooler	No fan or heatsink included with the boxed processor (Intel specifications).	No fan or heatsink included with the boxed processor (Intel specifications).