Intel Core i5-14600K vs Intel Core i9-9820X

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

Better figure, where one is clearly better

Core i5-14600K compared with Core i9-9820X
IntelCore i5-14600KIntelCore i9-9820X
Overview
ReleasedOctober 20232018
Cores and clocks
Cores14 (6 performance, 8 efficiency) (better)10
Threads2020
Base clock3.5 GHz3.3 GHz
Boost clock5.3 GHz (better)4.2 GHz
L3 cache24 MB (better)16.5 MB
Cores6 Performance-cores and 8 Efficient-cores, with Hyper-Threading; codename Raptor LakeSkylake-X refresh; Hyper-Threading and an unlocked multiplier, confirmed by Intel’s exact-model launch table.
ClocksP-core base 3.5 GHz, max turbo 5.3 GHz; E-core base 2.6 GHz, max turbo 4 GHzTurbo Boost Max 3.0 up to 4.20 GHz on the preferred cores; ordinary Turbo Boost 2.0 up to 4.10 GHz. Intel’s October 2018 announcement planned November availability. Ark’s contemporary exact-model report confirms Japanese retail sale on 14 December 2018, but earlier worldwide sale was not established; year precision is retained.
Cache24 MB Intel Smart Cache (L3); 20 MB L216.5 MB Intel Smart Cache; L3 designation confirmed by the exact Newegg listing.
Graphics and AI
Built-in graphicsYesNo
GraphicsIntel UHD Graphics 770, 32 execution units, up to 1.55 GHz; outputs eDP 1.4b, DP 1.4a, HDMI 2.1; up to 4 displaysNo processor graphics, explicitly confirmed by Intel’s exact-model support table.
Platform
SocketLGA1700LGA2066
Base power125 W165 W
Maximum power181 W–
UnlockedYesYes
Cooler in the box–No
Memory supportUp to DDR5 5600 MT/s or up to DDR4 3200 MT/s; 2 channels, up to 192 GB; ECC supportedUp to 128 GB; four channels of DDR4-2666; 85 GB/s maximum published bandwidth; no ECC.
PCIePCIe 5.0 and 4.0; 20 lanes (Up to 1x16+4, 2x8+4); DMI 4.0 x844 CPU lanes; PCIe 3.0. The 68-lane family platform figure includes chipset lanes.
ChipsetsIntel 600 and 700 seriesIntel X299; LGA2066.
ProcessIntel 714 nm; Skylake-X refresh.
Coolermax operating temperature 100 °C; thermal specification PCG 2020AIntel explicitly excludes a fan and heatsink from the boxed product. Intel’s support article confirms solder thermal interface material for this exact model; published junction limit 92°C.

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