SX 400

The SX 400 is a Stratix 10 GX/SX SoC FPGA from Altera, built on a 14 nm process. It provides 128,160 adaptive logic modules (ALMs) (378,000 logic elements (LEs)), about 256,320 LUT4 equivalents, 30 Mb of block RAM and 648 variable-precision DSP blocks. Its processing system includes four Arm Cortex-A53 cores running at up to 1.5 GHz. The programmable logic offers up to 374 user I/O pins and 24 XCVR/XCVR transceivers at up to 28.3 Gb/s, with hard PCI Express Gen3 x16 blocks. It comes in a single package, the F1152 (35 × 35 mm). Designs are built with Altera Quartus Prime.

Specifications

Packages

Package names are shown as in the selection guide; the full ordering code adds speed grade and temperature (see the data sheet).

Alternatives to the SX 400

Closest matches in other families and vendors by logic, DSP, memory, I/O and transceivers. Check pin compatibility and tools before migrating.

Compare side by side: SX 400 vs A5E 052A, SX 400 vs A5E 052B, SX 400 vs A5E 043A, SX 400 vs A5E 043B.

SX 400 quick facts

How many LUTs does the SX 400 have?

The SX 400 has 128,160 adaptive logic modules (ALMs), about 256,320 LUT4 equivalents (378,000 logic elements (les) as published by Altera).

How many DSP blocks does the SX 400 have?

The SX 400 has 648 variable-precision DSP blocks and 30 Mb of block RAM.

Does the SX 400 have transceivers?

Yes, 24 XCVR/XCVR transceivers at up to 28.3 Gb/s.

Does the SX 400 have a processor?

Yes. It includes a hard 4× Arm Cortex-A53 processor.

What are the alternatives to the SX 400?

Devices of similar size in other families include A5E 052A (Altera Agilex 5 E-Series), A5E 052B (Altera Agilex 5 E-Series), A5E 043A (Altera Agilex 5 E-Series).

Which software is used to design with the SX 400?

Designs for the SX 400 are built with Altera Quartus Prime.

Other Stratix 10 GX/SX devices

Source: Altera Stratix 10 GX/SX FPGA Product Table, 2025.09.23. Data is extracted automatically from the vendor's selection guide; verify critical values in the device data sheet.