HYSYS benefits significantly from high single-core clock speeds (3.5 GHz+). While it does support multi-threading for certain solver tasks, a faster individual core is often more beneficial than having dozens of slower cores. 2. Random Access Memory (RAM)
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).
Never run Aspen HYSYS on a traditional mechanical Hard Disk Drive (HDD) if you can avoid it. Aspen Hysys System Requirements
64 GB is advised if you are running HYSYS alongside other heavy hitters like Aspen Plus, AVEVA, or large Excel-based automation tools. 3. Graphics Card (GPU)
64-bit Office (2019 or 365) is highly recommended. HYSYS uses Excel for many reporting functions and "Aspen Simulation Workbook" integration; mismatched "bitness" (e.g., 32-bit Excel on 64-bit HYSYS) often causes crashes. Random Access Memory (RAM) At least 20 GB
If you are a student or a casual user, a modern with 16GB of RAM will get the job done. However, if you are a professional working on dynamic simulations or massive integrated gas plant models , investing in a workstation with 32GB of RAM and an i9 processor will save you hours of processing time every week.
Aspen HYSYS is a computationally intensive application. While basic steady-state simulations run on most modern chips, complex dynamics or large-scale refinery models require high clock speeds. Intel Core i5 or AMD Ryzen 5 (Quad-core). OS: Windows 10 or Windows 11 (64-bit only)
Solid State Drive (SSD) is mandatory for a modern experience.
HYSYS isn't a video game, but its PFD (Process Flow Diagram) and 3D modeling environments (like the Flare System Analyzer) rely on decent graphics processing. Integrated Intel HD Graphics.
RAM dictates how many concurrent simulations and windows you can have open without the system swapping data to the hard drive, which slows everything down. 16 GB RAM. Recommended: 32 GB RAM.