Flex Logix
InferX is

InferX Software makes AI Inference easy, provides more throughput on tough models, costs less, and requires less power.

AI Inference Acceleration

Top throughput on tough models.
More throughput for less $ & less watts.

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Accelerate workloads
& make your SoC flexible for changing needs.

eFPGA proven on 6/7, 12, 16, 22, 28, 40 & 180nm.

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Flex Logix™ Technology


Inference and eFPGA are both data flow architectures. A single inference layer can take over a billion multiply-accumulates. Our Reconfigurable Tensor Processor reconfigures the 64 TPUs and RAM resources to efficiently implement a layer with a full bandwidth, dedicated data path, like an ASIC; then repeats this layer by layer. Flex Logix utilizes a new breakthrough interconnect architecture: less than half the silicon area of traditional mesh interconnect, fewer metal layers, higher utilization and higher performance. The ISSCC 2014 paper detailing this technology won the ISSCC Lewis Winner Award for Outstanding Paper. The interconnect continues to be improved resulting in new patents.


We can easily scale up our Inference and eFPGA architectures to deliver compute capacity of any size. Flex Logix does this using a patented tiling architecture with interconnects at the edge of the tiles that automatically form a larger array of any size.


SRAM closely couples with our compute tiles using another patented interconnect. Inference efficiency is achieved by closely coupling local SRAM with compute which is 100x more energy efficient than DRAM bandwidth. This interconnect is also useful for many eFPGA applications.


Our dynamic tensor processor features 64 one-dimensional tensor processors closely coupled with SRAM. The tensor processors are dynamically reconfigurable during runtime, using our proprietary interconnect, thus enabling implementation of multi-dimensional tensor operations as required for each layer of a neural network model, resulting in high utilization and high throughput.


Unlike solutions designed around AI model development and training, our Inference accelerator starts with a trained ML model, typically in ONNX format and generates a program that runs on our InferX accelerators. 

Our eFPGA compiler has been in use by dozens of customers for several years. Software drivers will be available for common Server OS and real time OS for MCUs and FPGAs.

InferX PCI Express and M.2 offerings

The InferX X1 processor is in production and is available now in PCI Express (HHHL), M.2 (M+B key) and chip level offerings.


Flex Logix has numerous architecture and circuit design technologies to deliver the highest throughput at the lowest power.

Featured Articles

Flex Logix named top Edge AI company to know in 2021

Flex Logix named top Edge AI company to know in 2021

Flex Logix - Top Company to Watch

On-Chip FPGA: the “other” compute resource

Expanding the possibilities in the processor subsystem.

Flex Logix joins the Embedded AI+Vision Alliance

Membership will help support Flex Logix's rapid growth in the edge vision market with its inference accelerator chips and boards.

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