At least 20 GB of free space for the installation of the AspenONE suite, plus additional space for simulation backup files and scratch data. 5. Operating System & Software Compatibility AspenTech is strict about OS compatibility. OS: Windows 10 or Windows 11 (64-bit only).
Aspen HYSYS is a CPU-intensive application that relies heavily on single-threaded performance for many calculations, though modern versions take advantage of multiple cores for certain tasks. For small to moderate simulations, a modern Intel Core i5 or i7, or Core Ultra CPU is the baseline. For professional work, a modern Intel Core i7/i9 HX series or AMD Ryzen 9 is recommended, with more cores providing smoother multitasking. For large simulations with more than 100,000 variables, a high-frequency processor with strong per-core performance is essential. Aspen Hysys System Requirements
| Component | Minimum | Official Recommended | | | :--- | :--- | :--- | :--- | | OS | Windows 10 64-bit | Windows 11 Pro / Server 2022 | Windows 11 Enterprise LTSC | | CPU | 2.5 GHz Dual-core | 3.0 GHz+ Quad-core | 3.8 GHz+ 8-core (Intel Xeon W / AMD Threadripper) | | RAM | 8 GB | 16 GB | 32-64 GB (non-negotiable for dynamics) | | Storage | 10 GB free HDD | 20 GB free SSD | 512 GB NVMe PCIe 4.0 SSD | | GPU | 1280x1024 resolution | Dedicated GPU with OpenGL 2.0 | NVIDIA Quadro / RTX series (for 3D views) | | Network | 1 Mbps (for licensing) | 10 Mbps | 100 Mbps (for large SQL case libraries) | At least 20 GB of free space for