Intel Core i9-11900K vs Intel Core i9-12900KS

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

Better figure, where one is clearly better

Core i9-11900K compared with Core i9-12900KS
IntelCore i9-11900KIntelCore i9-12900KS
Overview
ReleasedMarch 2021April 2022
Cores and clocks
Cores816 (8 performance, 8 efficiency) (better)
Threads1624 (better)
Base clock3.5 GHz3.4 GHz
Boost clock5.3 GHz5.5 GHz (better)
L3 cache16 MB30 MB (better)
CoresHyper-Threading, Turbo Boost Max 3.0, Thermal Velocity Boost, AVX-512 and Deep Learning Boost supported. General retail sale began 30 March 2021, according to Intel's sales-embargo statement reported by Windows Central; the 16 March maker press release was the announcement.Alder Lake; 8 Performance-cores with Hyper-Threading and 8 Efficient-cores
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 GHz base clock. Adaptive Boost Technology raises all-core clocks when power and thermal conditions allow (PC Gamer). Tom's Hardware reports 250 W PL2; the current Intel specification page publishes TDP only.P-core base 3.4 GHz and turbo 5.2 GHz; E-core base 2.5 GHz and turbo 4 GHz; Turbo Boost Max 3.0 5.3 GHz; Thermal Velocity Boost up to 5.5 GHz
Cache–14 MB L2 cache
Graphics and AI
Built-in graphicsYesYes
GraphicsIntel UHD Graphics 750; 32 execution units; 350 MHz base, up to 1.3 GHz; up to 64 GB shared graphics memory; three displays. HDMI up to 4096×2160 at 60 Hz; DisplayPort up to 5120×3200 at 60 Hz; Quick Sync Video supported.Intel UHD Graphics 770; 32 execution units; 300 MHz base and 1.55 GHz maximum dynamic clock
AI engineIntel Gaussian & Neural Accelerator 2.0; Deep Learning Boost on the CPU.–
Platform
SocketLGA1200LGA1700
Base power125 W150 W
Maximum power–241 W
UnlockedYesYes
Cooler in the boxNoNo
Memory supportUp to 128 GB; two channels; DDR4-3200; 50 GB/s maximum bandwidth; ECC not supported. Tom's Hardware identifies DDR4-3200 Gear 1 as officially supported on the Core i9 models.Up to 128 GB; two channels; DDR5-4800 or DDR4-3200; ECC support depends on the motherboard and configuration
PCIePCIe 4.0; 20 CPU lanes, configured as 1×16+1×4, 2×8+1×4 or 1×8+3×4.20 CPU lanes; PCIe 5.0 and 4.0
Chipsets–Z690 with the latest BIOS; maker retail and OEM availability began on 5 April 2022, rather than the Q1 launch quarter listed in ARK
Process14 nm; Rocket Lake; 37.5 × 37.5 mm package; 100°C maximum junction temperature. Cypress Cove CPU architecture (Intel launch announcement).Intel 7
CoolerNo cooler included with the boxed processor (Tom's Hardware exact-model review).No cooler included, as explicitly reported by TechSpot and HotHardware; a separate cooler is required

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