Intel Atom x7405C

Embedded CPUIntel

Also called intel atom x7405c, atom x7405c, x7405c, atom-x7405c

IntelEmbedded CPUAmston Lake

Intel Atom X embedded processor on Amston Lake, with 4 and 6 MB L3 at 12 W TDP addressing up to 32 GB.

What you need to know

Intel Atom x7405C is a previous generation embedded cpu.

Intel Atom x7405C launched in April 1, 2024., Core and thread counts are not recorded here on Amston Lake, dropping into the FCBGA1264 socket. Treat the spec table as the facts. Age alone does not tell you to throw it out.

Still good?: Only if the workload is light
Product age: 2 years old
Upgrade pressure: Low

Feex says

If apps already feel slow, check RAM and storage before you blame this CPU by name alone.

What this hardware means today

Age and usefulness are not the same number. This page keeps them separate.

Performance today: Average. Average for the class when RAM, storage, and the GPU keep up.
Product age 2 years old: Previous generation. Launched April 1, 2024. Newer platforms exist. That does not make this chip unusable by itself.
Support status: Supported. Current Windows and current applications still run on this class of CPU. Platform BIOS support depends on the motherboard or laptop vendor.
Upgrade pressure: Low. Upgrade pressure is low unless you need a different platform feature.

Where does it sit?

Amston Lake sits on Intel's recent Core timeline. Later desktop branding moved toward Core Ultra.

11th Gen

12th Gen

13th Gen

14th Gen

Core Ultra

Performance context

These are qualitative readings, not a fake 8.7 out of 10. Workload still wins.

Gaming: Good

Playable in lighter titles. A weak GPU will hide whatever this chip still has.

Productivity: Average

4 cores cover office, browser, and compile work in this class.

Multithreaded workloads: Average

Thread count is not recorded on this sheet.

General use: Good

Everyday Windows use is not where most people notice this SKU first.

Efficiency: Good

Rated 12 W base power. That is a platform number, not a promise about your cooler.

Should you upgrade?

Probably not if this chip already matches your work.

Upgrade makes more sense if

Your workload is strongly CPU limited
You need a newer platform for memory, I/O, or chipset features
You need substantially more multicore performance
You need newer connectivity that your current board cannot offer

Upgrade makes less sense if

The GPU is the real bottleneck
Current applications are already responsive
The CPU rarely limits your workload

Specifications

Figures below follow the Feex Hardware Database record for this SKU. Fields without a recorded value are omitted.

Processor

Intel Atom x7405C is built on Amston Lake.

Intel Atom x7405C specifications: Processor
Manufacturer	Intel
Family	Atom X
Architecture	Amston Lake
Generation	Intel Atom Processor X Series
Segment	Embedded

Cores and threads

Intel Atom x7405C has 4 cores.

Intel Atom x7405C specifications: Cores and threads
Cores	4

Clock speeds

Intel Atom x7405C boosts to 3.4 GHz.

Intel Atom x7405C specifications: Clock speeds
Max boost	3.4 GHz

Cache

Cache on this sheet is 6 MB L3.

Intel Atom x7405C specifications: Cache
L3 cache	6 MB
Total cache	6 MB

Memory

Intel Atom x7405C addresses 32 GB across 1 memory channels.

Intel Atom x7405C specifications: Memory
Supported types	DDR4, DDR5, LPDDR5
Max capacity	32 GB
Channels	1

Package and power

Intel Atom x7405C uses the FCBGA1264 socket and a 12 W TDP.

Intel Atom x7405C specifications: Package and power
Socket	FCBGA1264
TDP	12 W
PCIe	9 lanes

Market

Intel Atom x7405C launched April 1, 2024 at USD 57 (suggested price at launch).

Intel Atom x7405C specifications: Market
Launch date	April 1, 2024
Launch MSRP	USD 57 (suggested price at launch)
Model	X7405C

Features

Intel Atom x7405C records 3 instruction sets on this sheet.

Intel Atom x7405C specifications: Features
Instruction sets	AVX2SSE4.1SSE4.2
Security	Boot GuardOS GuardMode-Based Execute Control
Virtualization	Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)
AI acceleration	Gaussian Neural Accelerator

Compatibility

Compatibility
Socket	FCBGA1264
Board	A shared socket is not automatic compatibility. Check the motherboard CPU list and BIOS revision.
Memory	DDR4, DDR5, LPDDR5, up to 32 GB

A shared socket is not automatic compatibility. Boards often need a BIOS update before a newer chip in the same socket will post.

Cooler clearance, VRM quality, and power limits matter as much as the socket name.

Read the memory list on the board. The CPU can list more standards than one motherboard will accept.

No post after a CPU swap

Clear CMOS only after you confirm the board list includes this SKU and the BIOS is new enough. A supported name on a box is not the same as a flashed board.

Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Partially Verified. How we research.

Feex Hardware Database · Specification source used for this sheet. CC BY 4.0.

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