Intel

Intel Core i5-12400T

Expert rating7.3 / 10

Brand:: Intel
Form Factor:: Desktop
CPU Socket:: FCLGA1700
Core/Thread Count:: 6C/12T
TDP:: 35W
iGPU:: Intel UHD Graphics 730
CPU Series:: Core i5

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Manufacturer: Intel Last updated: 2026-09-12

Intel Core i5-12400T Review

Intel Core i5-12400T 6-core 12-thread desktop processor, 1.8GHz base / 4.2GHz boost, 35W TDP, Alder Lake, LGA 1700 socket

The Intel Core i5-12400T is a low-power desktop processor for compact, quiet small-form-factor builds. It pairs 6 cores and 12 threads with a 1.8GHz base clock that boosts up to 4.2GHz and Intel UHD Graphics 730 graphics, all within a 35W envelope.

Performance and Architecture

With 6 cores and 12 threads, the Intel Core i5-12400T runs a 1.8GHz base clock that boosts up to 4.2GHz, backed by 18MB of L3 cache and Intel UHD Graphics 730 graphics on the Alder Lake architecture.

Platform and Deployment

The Intel Core i5-12400T uses the LGA 1700 platform in a 35W envelope, positioned as a low-power desktop processor for compact, quiet small-form-factor builds..

Comparison to Alternatives

Within the Core i5 lineup in this catalog, the Intel Core i5-12400T sits at the 6-core tier, differentiated mainly by clock speed, TDP, and socket from its closest siblings. Against AMD's Ryzen desktop processors in this catalog at a similar tier, the Intel Core i5-12400T competes on platform ecosystem and per-core efficiency, while against Intel's own Core Ultra desktop parts in this catalog it occupies a narrower, more specialized deployment niche.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating7.3 / 10

The Intel Core i5-12400T is a low-power desktop chip built for compact and quiet small-form-factor systems.

Best for

Small-form-factor PCs
Quiet builds
Space-constrained systems

Not for

Gaming desktops
Overclocking
Heavy sustained workloads

Specifications

What these specs mean

Identity

Product Line	Core i5
Model Number	i5-12400T
Codename	Alder Lake
Release Year	2022

Segment and platform

Market Segment	Desktop
Microarchitecture	Alder Lake
Socket	FCLGA1700
Socket Status	Mature
Process Node	7 nm

Core configuration

Total Cores	6
Performance Cores	6
Efficiency Cores	0
Total Threads	12
SMT Enabled	Yes

Clock speeds

P-Core Base Clock	1.8 GHz
P-Core Boost Clock	4.2 GHz

Cache

L3 Cache	18 MB

Power and thermal

Base Power	35 W
Max Turbo Power	74 W

Memory

Memory Type	DDR5, DDR4
Max Memory Speed	4800 MT/s
Memory Channels	2
Max Memory Capacity	128 GB

Graphics and AI

Integrated Graphics	Yes
iGPU Model	Intel UHD Graphics 730
Copilot Plus Certified	No

Expansion

PCIe Generation	5.0
PCIe Lanes	20

Form Factor	Desktop
TDP	35 W
iGPU	Intel UHD Graphics 730

FAQs

What are the key specifications of the Intel Core i5-12400T?

The Intel Core i5-12400T has 6 cores and 12 threads, a 1.8 GHz base and 4.2 GHz boost clock, 18 MB of L3 cache and a 35 W TDP. Integrated graphics: Intel UHD Graphics 730. Socket: FCLGA1700.

Will the Intel Core i5-12400T work with my current setup?

The Intel Core i5-12400T lists Socket is FCLGA1700. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.