Intel Core i5-11400F vs Intel Core i5-9400F

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Core i5-11400F compared with Core i5-9400F

	IntelCore i5-11400F	IntelCore i5-9400F
Overview
Released
Released	March 2021	January 2019
Cores and clocks
Cores
Cores	6	6
Threads
Threads	12 (better)	6
Base clock
Base clock	2.6 GHz	2.9 GHz
Boost clock
Boost clock	4.4 GHz (better)	4.1 GHz
L3 cache
L3 cache	12 MB (better)	9 MB
Cores
Cores	6 cores and 12 threads; Rocket Lake, Cypress Cove architecture. Multiplier locked (Rock Paper Shotgun). First sale on 30 March 2021 is reported by TechRadar from Intel’s statement; the 16 March press release announced the generation.	Six cores without Hyper-Threading; Intel Turbo Boost 2.0 supported. Intel's F suffix denotes a processor requiring separate graphics; its multiplier is locked.
Clocks
Clocks	2.6 GHz base; up to 4.4 GHz Intel Turbo Boost 2.0.	Maximum turbo is a single-core frequency; sustained clocks depend on cooling and motherboard power settings. Intel publishes TDP without a separate maximum turbo-power figure.
Graphics and AI
Built-in graphics
Built-in graphics	No	No
Graphics
Graphics	No integrated graphics; a separate graphics card is required (Intel F-series support).	No integrated GPU; a separate graphics card is required, including for motherboard display outputs.
Platform
Socket
Socket	LGA1200	LGA1151
Base power
Base power	65 W	65 W
Unlocked
Unlocked	No	No
Cooler in the box
Cooler in the box	Yes	Yes
Memory support
Memory support	Up to 128 GB; two channels; DDR4-3200; 50 GB/s stated by Intel; ECC not supported.	Up to 128 GB; two channels; DDR4-2666; 41.6 GB/s maximum bandwidth; ECC not supported.
PCIe
PCIe	PCIe 4.0; 20 CPU lanes: 1×16+1×4, 2×8+1×4 or 1×8+3×4.	PCIe 3.0; 16 CPU lanes, configured as 1×16, 2×8 or 1×8+2×4.
Chipsets
Chipsets	500-series and selected Z490/H470 motherboards with appropriate BIOS support (Rock Paper Shotgun); support is not universal across all 400-series boards.	–
Process
Process	14 nm; 37.5×37.5 mm package; 100°C maximum junction temperature.	14 nm; Coffee Lake; 37.5 × 37.5 mm package; 100°C maximum junction temperature. ComputerBase identifies a paste thermal interface on its launch sample; this should not be assumed for every later stepping.
Cooler
Cooler	A fan heatsink is included with the retail box (TechPowerUp exact-model unboxing).	Boxed cooler included and tested by TechSpot. Intel 300-series motherboard compatibility requires the appropriate BIOS and vendor support. Intel's January release notice gives a late-January through first-quarter rollout for the new models; IT Home reports the exact 9400F on sale in China on 28 January, supporting month precision rather than a confirmed worldwide first-sale day.