System requirements
QGIS system requirements for Windows
| Component | Minimum | Recommended | For large datasets |
|---|---|---|---|
| OS | Windows 10 64-bit | Windows 11 64-bit | Windows 11 |
| RAM | 4 GB | 8 GB | 16 GB or more |
| CPU | Any x64 processor | 4-core, 2.5 GHz+ | 8-core, 3 GHz+ |
| Storage | 2 GB (QGIS only) | 10 GB SSD | SSD + separate data drive |
| GPU | Any (OpenGL 2.0) | Dedicated GPU | Dedicated GPU with 4+ GB VRAM |
| Display | 1024 × 768 | 1920 × 1080 | 4K display |
RAM guide
How much RAM does QGIS need?
| RAM | What you can do |
|---|---|
| 4 GB | Basic vector editing, small datasets, learning QGIS |
| 8 GB | Standard GIS work, medium vector/raster datasets, most users |
| 16 GB | Large rasters, complex processing, multiple large layers |
| 32 GB+ | National-scale datasets, heavy spatial analysis, remote sensing |
QGIS uses RAM proportional to the data loaded. The recommended 8 GB covers typical workflows. If you work with large rasters (satellite imagery, DEMs) or complex processing chains, 16 GB is the practical minimum.
Performance tips
Improve QGIS performance on Windows
- Use an SSD — the biggest single improvement for GIS work is fast storage. Loading large shapefiles from an SSD vs HDD can be 5-10x faster.
- Enable render caching — Settings → Options → Rendering → check Enable feature simplification by default for newly added layers
- Limit simultaneous renders — Settings → Options → Rendering → reduce Max cores to use to half your CPU cores
- Use GeoPackage over Shapefile — GeoPackage (.gpkg) is faster for most operations than the legacy Shapefile format
- Build spatial indexes — right-click a layer → Properties → Source → Create Spatial Index for large vector datasets
- Reproject to your working CRS — on-the-fly reprojection slows rendering. Reproject data to your project CRS once using Processing → Reproject Layer
FAQ
Requirements questions
QGIS minimum system requirements 2026
Official minimum: Windows 10 64-bit, 4 GB RAM, 2 GB disk space, OpenGL 2.0 GPU. In practice, 4 GB RAM is barely usable for real work — 8 GB is the practical minimum for comfortable use.
Does QGIS work on 32-bit Windows?
No. QGIS 3.x requires 64-bit Windows. The last version with 32-bit support was QGIS 2.x, which is no longer maintained. You need Windows 10 or 11 64-bit.
QGIS recommended RAM for raster analysis
For raster analysis (DEM processing, satellite imagery, raster algebra), 16 GB RAM is recommended. Some operations load entire rasters into memory. If you see "out of memory" errors with 8 GB, upgrade to 16 GB or process data in tiles using the Raster Analysis tools.
Does QGIS use the GPU?
QGIS uses the GPU for map rendering (via OpenGL) and can accelerate some processing tasks. A dedicated GPU helps with smooth map rendering at high zoom levels and with 3D views. However, most analytical processing uses the CPU.