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Also known as: Field-Programmable Gate Array
Integrated circuit that can be configured after manufacturing to implement custom digital logic for specialized compute workloads.
DESCRIPTION
FPGAs enable reconfigurable hardware through programmable logic blocks and interconnects. They excel in low-latency, high-throughput tasks like signal processing, trading, networking, and ML inference. Designs are implemented in HDL (Verilog/VHDL) or high-level synthesis. FPGAs trade off flexibility, development complexity, and power efficiency against ASICs’ performance. Cloud providers offer FPGA instances for accelerated workloads.
ALTERNATIVE DEFINITIONS
Intel
A field programmable gate array (FPGA) is a type of semiconductor device that can be programmed to perform a wide array of complex functions.
Stresses programmability and functional flexibility.
AMD (Xilinx)
An FPGA is an integrated circuit that can be programmed in the field after manufacturing to implement custom hardware functionality.
Highlights post-manufacturing configurability and custom hardware.
RELATED TERMS
Microprocessor Verilog VHDL RTL Reconfigurable Computing Low Latency Hardware Acceleration High-throughput
COMPETING TERMS
Application-Specific Integrated Circuit Graphics Processing Unit
RELATIONS
- Narrower: Field-Programmable Gate Array (FPGA)
KNOWLEDGE AREAS
Infrastructure IoT & Edge Data Real-time & Streaming Data
TARGET AUDIENCE
Hardware Engineer AI Engineer MLOps Engineer Cloud Architect Software Developer
EXTERNAL SOURCES
- Wikipedia - Field-programmable gate array
- Intel - FPGA product family overview
- AMD - AMD/Xilinx FPGA portfolio
- Xilinx Developer - FPGA development resources
TOP QUESTIONS
When should you choose FPGA over GPU or ASIC?
Select FPGA for ultra-low latency, deterministic performance, or when hardware needs evolve without ASIC lead times.
Category: Alternatives
What languages are used to program FPGAs?
Verilog and VHDL are common HDLs; high-level synthesis supports C/C++ or OpenCL in some toolchains.
Category: Requirements
What industries use FPGAs?
Telecom, finance, automotive, aerospace, and data centers leverage FPGAs for specialized acceleration.
Category: Example
What are common FPGA development pitfalls?
Timing closure, resource constraints, and inadequate testbenches often cause performance or functional issues.
Category: Mistakes
How do FPGAs support ML inference?
They implement custom pipelines and quantized operators for efficient, low-latency inference on edge or datacenter workloads.
Category: Technical
What is partial reconfiguration?
It allows reprogramming parts of the FPGA while the rest continues running, enabling flexible updates.
Category: Feature
How do you deploy FPGAs in the cloud?
Use specialized instances (e.g., AWS F1) with toolchains to synthesize bitstreams and integrate into your application stack.
Category: Deployment
What’s the power efficiency trade-off?
FPGAs are more efficient than CPUs but less than ASICs; tuning design and clock domains helps optimize power.
Category: Tradeoff
How is debugging done on FPGAs?
Leverage logic analyzers, on-chip debugging cores, and simulation to trace and validate behavior.
Category: Operations