Intel Atom x7405C socket: BGA 1264

What the Atom x7405C is

The Atom x7405C is a four-core embedded processor that Intel released in April 2024 with Amston Lake for commercial edge systems. Four Gracemont Efficient-cores run at 2.2 GHz base with turbo to 3.4 GHz and no Hyper-Threading for deterministic commercial timing and control. Shared cache totals 6 MB of L3. Processor base power is 12 W on Intel 7.

A note on clocks: the database prints a 1.7 GHz base, but the Intel commercial page lists 2.2 GHz, which this page follows as the manufacturer figure for warranty purposes and support claims. The C suffix marks commercial temperature range for indoor cabinets with controlled ambients. Against the 9 W industrial Intel Atom x7433RE the x7405C trades temperature range for higher sustained clocks at 12 W for office-adjacent duty and retail floors.

Headless operation defines the SKU for security-focused fleets: no graphics block is exposed, so boards run serial console or BMC management instead of displays. Four cores at 12 W cover network and control duty where a display would add cost without value for headless fleets. Security appliances value the headless design because attack surface shrinks without a display stack to maintain or patch.

Workload fit is commercial edge compute for mainstream branch duty: network appliances, retail controllers and automation gateways where 4 cores inside 12 W handle packet work. Operators pick the x7405C where the 2-core Intel Atom x7203C lacks threads but 8 cores waste power and budget for the task. Branch deployments often standardize on this SKU because one board covers routing and control together at low cost and power for years.

Socket and motherboard compatibility

The x7405C fits the BGA 1264 soldered package at 35 × 24 mm with commercial carrier validation. There is no socketed market and no processor upgrade. Integrators qualify board and firmware together for multi-year indoor deployments.

Carrier selection follows the vertical: networking boards wire Ethernet and crypto around the cores, while retail boards favor serial and USB for peripherals and scanners. Commercial temperature range suits ventilated cabinets rather than curbside boxes exposed to weather extremes.

Inside Amston Lake the x7405C sits between the 2-core C SKUs and the 8-core Intel Atom x7809C on cores with room for mainstream growth and headroom. Package and platform match across the family for shared carrier designs with model-specific power stages and mounting.

Memory, PCIe and cooling

DDR4-3200, DDR5-4800 and LPDDR5-4800 support arrives over a single channel to 32 GB. Single-channel bandwidth suits control workloads better than throughput races, so designers size for tables and buffers with deterministic margins and validation. CPU-level ECC stays unconfirmed, so this page makes no ECC claim.

PCIe 3.0 x9 lanes serve NICs, NVMe and board devices on commercial carriers with room for one expansion card and a TPM module. Nine lanes cover a fast NIC plus boot storage with room for one expansion device per the carrier manual and vertical.

Cooling at 12 W uses compact board heatsinks with modest airflow for ventilated commercial cabinets and wiring closets. No cooler ships with the soldered part. Sealed boxes fit this class where fanless operation matters for dusty retail back rooms and stock areas.

Upgrade paths

Soldering removes field upgrades, so the x7405C is chosen against its siblings at specification time with workload forecasts in hand and growth headroom: the 2-core Intel Atom x7203C for lighter duty, or the 8-core Intel Atom x7809C where threads run out during peak seasons. Storage and mezzanines evolve while the processor stays fixed for the appliance lifetime.

Newer embedded families need fresh carrier qualification. The LGA, PGA and BGA: CPU package types explained guide covers the soldered tradeoff behind these designs.