Intel · Core

Core i5-10400F

Released May 2020

A six-core Comet Lake desktop processor for budget LGA1200 systems with a separate graphics card.

Model history · 2 models, 2019–2020

2019Core i5-9400F Compare
2020Core i5-10400F

Cores: 6/12
Boost: 4.3 GHz
L3: 12 MB
Power: 65 W
Socket: LGA1200

What reviewers say

Reviews praise strong budget gaming performance and the move to twelve threads. It often matches the older Core i7-8700K in games, but Ryzen 5 alternatives remain stronger in heavily threaded work. Locked CPU ratios and restricted memory speeds on cheaper launch-era boards limit tuning, so total platform cost matters.

From computerbase.de and techteamgb.co.uk

Specifications

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Cores and clocks

Cores: 6
Threads: 12
Base clock: 2.9 GHz
Boost clock: 4.3 GHz
L3 cache: 12 MB
Cores: Hyper-Threading supported; Intel Turbo Boost 2.0 supported, without Turbo Boost Max 3.0 or Thermal Velocity Boost.
Clocks: Locked CPU multiplier (Intel support). ComputerBase reports an Intel-confirmed 134 W PL2 limit for 28 seconds; the current Intel specification page publishes TDP only.

Graphics and AI

Built-in graphics: No
Graphics: No integrated graphics; a separate graphics card is required (Intel support).

Platform

Socket: LGA1200
Base power: 65 W
Unlocked: No
Memory support: Up to 128 GB; two channels; DDR4-2666; 41.6 GB/s maximum bandwidth; ECC not supported.
PCIe: PCIe 3.0; 16 CPU lanes, configured as 1×16, 2×8 or 1×8+2×4.
Process: 14 nm; Comet Lake; 37.5 × 37.5 mm package; 100°C maximum junction temperature. ComputerBase identifies G1 six-core-die and Q0 ten-core-die versions with the same published core, cache and clock specifications; its G1 sample uses thermal paste under the heat spreader, while Q0 is soldered.

Pros and cons

Pros

Six cores with Hyper-Threading
Supports up to 128 GB of memory
Fits LGA1200 motherboards

Cons

No integrated graphics
Locked CPU multiplier
PCIe limited to version 3.0

Closest rivals

Model	Cores	Boost	L3	Power	Socket	Released
AMDRyzen 5 4600G	6/12	4.2 GHz	8 MB	65 W	AM4	2020
AMDRyzen 5 5600X	6/12	4.6 GHz	32 MB	65 W	AM4	Nov 2020
AMDRyzen 5 3600	6/12	4.2 GHz	32 MB	65 W	AM4	Jul 2019

Previous model: Core i5-9400F.

Sources

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