Intel Core i9-10900K vs Intel Core i9-9900K

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

Core i9-10900K compared with Core i9-9900K
IntelCore i9-10900KIntelCore i9-9900K
Overview
ReleasedMay 2020October 2018
Cores and clocks
Cores10 (better)8
Threads20 (better)16
Base clock3.7 GHz3.6 GHz
Boost clock5.3 GHz (better)5 GHz
L3 cache20 MB (better)16 MB
CoresHyper-Threading, Turbo Boost Max 3.0 and Thermal Velocity Boost supported.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.
ClocksUp to 5.3 GHz with Thermal Velocity Boost at its 70°C temperature threshold; up to 5.2 GHz with Turbo Boost Max 3.0, or 5.1 GHz with Turbo Boost 2.0. Configurable TDP-down to 95 W with a 3.3 GHz base clock. Tom's Hardware reports 250 W during boost; the current Intel specification page publishes TDP only.3.6 GHz base; up to 5.0 GHz Intel Turbo Boost 2.0.
Graphics and AI
Built-in graphicsYesYes
GraphicsIntel UHD Graphics 630; 350 MHz base, up to 1.2 GHz; up to 64 GB shared graphics memory; three displays. HDMI up to 4096×2160 at 30 Hz; DisplayPort up to 4096×2304 at 60 Hz; Quick Sync Video supported.Intel UHD Graphics 630; 350 MHz base, up to 1.2 GHz; Quick Sync Video; up to three displays.
Platform
SocketLGA1200LGA1151
Base power125 W95 W
UnlockedYesYes
Cooler in the boxNoNo
Memory supportUp to 128 GB; two channels; DDR4-2933; 45.8 GB/s maximum bandwidth; ECC not supported.Up to 128 GB on the current Intel specification page; two channels; DDR4-2666; 41.6 GB/s; ECC not supported.
PCIePCIe 3.0; 16 CPU lanes, configured as 1×16, 2×8 or 1×8+2×4.PCIe 3.0; 16 CPU lanes: 1 × 16, 2 × 8 or 1 × 8 + 2 × 4. This excludes chipset lanes.
Chipsets–Intel 300-series motherboards, with appropriate BIOS support; Z390 was introduced alongside this generation.
Process14 nm; Comet Lake; 37.5 × 37.5 mm package; 100°C maximum junction temperature.14 nm; 37.5 × 37.5 mm package; 100°C maximum junction temperature.
CoolerNo cooler included with the boxed processor (Tom's Hardware exact-model review); an LGA1200-compatible thermal solution is required.No fan or heatsink included with the boxed processor (Intel specifications).

More comparisons