DEV Community

Spyros Ponaris
Spyros Ponaris

Posted on • Edited on

2

Stack vs Heap in C#: Key Differences and Usage

When working with memory management in C#, it's important to understand the stack and the heap. Both are essential areas of memory, but they serve different purposes and have distinct characteristics. Here’s a quick comparison:

Aspect Stack Heap
Scope One per thread One per application
Size Small (1–4 MB) Large
Memory Layout No gaps between data Can be defragmented
Memory Management Automatic (e.g., function exit) Cleaned up by Garbage Collector (GC)
Speed Faster Slower

Key Points:

  1. Stack: Used for static memory allocation. Variables like method parameters, local variables, and return addresses are stored here. It’s managed automatically, making it faster.

  2. Heap: Used for dynamic memory allocation. Objects created using the new keyword are stored here. The garbage collector (GC) handles cleanup, which can slow down performance.


Additional Resources:

Understanding when to use stack or heap effectively can help optimize your application's performance and memory usage.

Billboard image

The Next Generation Developer Platform

Coherence is the first Platform-as-a-Service you can control. Unlike "black-box" platforms that are opinionated about the infra you can deploy, Coherence is powered by CNC, the open-source IaC framework, which offers limitless customization.

Learn more

Top comments (0)

A Workflow Copilot. Tailored to You.

Pieces.app image

Our desktop app, with its intelligent copilot, streamlines coding by generating snippets, extracting code from screenshots, and accelerating problem-solving.

Read the docs

👋 Kindness is contagious

Please leave a ❤️ or a friendly comment on this post if you found it helpful!

Okay