Intel

Intel Core i9-12900T

Expert rating7.8 / 10

Brand:: Intel
Form Factor:: Desktop
CPU Socket:: LGA 1700
Core/Thread Count:: 16C/24T
TDP:: 35W
iGPU:: Intel UHD Graphics 770
CPU Series:: Core i9

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Manufacturer: Intel Last updated: 2026-09-12

Intel Core i9-12900T Review

Intel Core i9-12900T 16-core 24-thread desktop processor, 1.4GHz base / 4.9GHz boost, 35W TDP, Alder Lake, LGA 1700 socket

The Intel Core i9-12900T is a low-power desktop processor for compact, quiet small-form-factor builds. Built on Intel's Alder Lake architecture, it pairs 16 cores and 24 threads with a 1.4GHz base clock that boosts up to 4.9GHz and Intel UHD Graphics 770 graphics, all within a 35W envelope.

Performance and Architecture

With 16 cores and 24 threads, the Intel Core i9-12900T is built on Intel's Alder Lake generation. Its 1.4GHz base clock boosts up to 4.9GHz, and Intel UHD Graphics 770 graphics handle everyday display and light content-creation tasks.

Platform and Efficiency

The Intel Core i9-12900T 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 i9 lineup in this catalog, the Intel Core i9-12900T sits among other Alder Lake parts at the 16-core tier, differentiated mainly by suffix, clock speed, and TDP. Against AMD's Ryzen processors in this catalog at a similar tier, Intel's Core i9 competes on single-thread performance and platform pricing, while against Intel's own Core Ultra parts in this catalog it lacks the on-die NPU but often costs less.

Specifications

Identity

Product Line	Core
Model Number	i9-12900T
Codename	Alder Lake
Release Year	2022

Segment and platform

Market Segment	Desktop
Microarchitecture	Alder Lake
Socket	LGA 1700
Socket	LGA 1700
Socket Status	Mature
Process Node	10 nm

Core configuration

Total Cores	16
Performance Cores	8
Efficiency Cores	8
Total Threads	24
SMT Enabled	Yes

Clock speeds

P-Core Base Clock	1.4 GHz
P-Core Boost Clock	4.9 GHz
E-Core Base Clock	1.1 GHz
E-Core Boost Clock	3.6 GHz
Unlocked Multiplier	No

Cache

L2 Cache	14 MB
L3 Cache	30 MB

Power and thermal

Base Power	35 W
Max Turbo Power	106 W

Memory

Memory Type	DDR5 or 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 770
iGPU Compute Units	32
Copilot Plus Certified	No

Expansion

PCIe Generation	PCIe 5.0
PCIe Lanes	20

Commercial

Retail Availability	Tray OEM

Form Factor	Desktop
TDP	35 W
iGPU	Intel UHD Graphics 770

Expert Review

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

Expert rating7.8 / 10

The Intel Core i9-12900T 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

Laptops
Fanless designs
Extreme power efficiency needs

FAQs

What are the key specifications of the Intel Core i9-12900T?

The Intel Core i9-12900T is a processor from Intel. Key specs: Cores 16, Threads 24, Base Clock 1.4 GHz, Boost Clock 4.9 GHz, L3 Cache 30.

Will the Intel Core i9-12900T work with my current setup?

The Intel Core i9-12900T lists Socket is LGA 1700. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.