AutoCAD 2021 does not support macOS Big Sur or newer natively (requires Boot Camp or Parallels). For Mac users, Autodesk released a separate "AutoCAD for Mac 2021" with a native Cocoa interface. Part 3: Performance Benchmarks (2021 vs. 2020) Independent testing (via CAD Panacea and Cadalyst) revealed that AutoCAD 2021 was 12-18% faster in common tasks compared to 2020, thanks to optimized multi-threading for 2D regen and 3D orbiting.
Run AutoCAD 2021 on Windows 10 with an SSD and 16GB of RAM. Avoid the macOS version. And always, always save to the cloud for DWG History to protect your work. Have questions about migrating from AutoCAD 2021 to 2025? Or need troubleshooting for a specific 2021 error? Leave a comment below or contact our CAD consulting team. AutoCAD 2021
Fix: Update to AutoCAD 2021.1.2 Update (released October 2021). This patch specifically addressed XREF memory leaks. Part 7: Licensing and Cost (Historical Context) This is the most critical section for anyone considering AutoCAD 2021 today. AutoCAD 2021 does not support macOS Big Sur
| Feature | AutoCAD 2021 | AutoCAD 2024/2025 | | :--- | :--- | :--- | | | Perpetual license (last version to support non-subscription in some regions) | Subscription only (monthly/annual) | | Cloud Collaboration | Basic DWG History and Web/Mobile | Advanced Shared Views, Activity Insights | | Markup Import | Manual | AI-assisted Markup Import & Auto-Convert | | Smart Blocks | No | Yes (Replace, Placement Suggestions) | | Web Access | Separate Web app | Unified Desktop/Web/ Mobile workflow | | File Format | DWG 2018 format (backward compatible to 2013) | DWG 2024 format (cannot open in 2021) | 2020) Independent testing (via CAD Panacea and Cadalyst)
| Component | Minimum | Recommended | | :--- | :--- | :--- | | | Windows 10 (64-bit) Version 1809 or later | Windows 10 Pro (64-bit) | | Processor | 2.5–2.9 GHz (Basic) | 3+ GHz (Intel Core i7/i9 or AMD Ryzen 7/9) | | Memory (RAM) | 8 GB | 16 GB (32 GB for 3D modeling) | | Display | 1360 x 768 (True Color) | 1920 x 1080 or higher (4K scaled support) | | GPU | 1 GB GPU with DirectX 11 | 4 GB GPU with DirectX 12 (NVIDIA Quadro/GeForce RTX) | | Disk Space | 7 GB (SSD recommended) | 10 GB + workspace files | | .NET Framework | .NET Framework 4.8 | .NET Framework 4.8 |