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Minimum 4 GB; 16 GB or higher is highly recommended for complex DFT or post-Hartree-Fock calculations.
As discussed in Section 7.2, this is a known issue on Windows.
Gaussian 16W brings high-level quantum chemistry to the Windows environment, optimized for desktop computers and workstations. Key features include:
Once you have obtained a legitimate installation package, the setup is straightforward. The following steps are based on common Windows installation guides:
| License Type | Price (Academic, new) | Notes | |---|---|---| | Windows 32‑bit Single Core | $1,150 | Extremely limited; 2 GB RAM, 16 GB disk | | Windows 32‑bit Multiprocessor | $1,725 | Up to 4 cores; 2 GB RAM | | Windows 64‑bit Multiprocessor | $3,375 | No core/RAM limits; single‑computer license | | Windows Site License (32/64‑bit) | $6,500 | Unlimited installations within a site | | Upgrade from G09W to G16W (64‑bit) | $2,530 | |
Select where you want to install the software.
– Pirated versions often have corrupted executables or altered algorithms. You might compute a reaction barrier that is off by 10 kcal/mol, leading to false conclusions, failed experiments, and wasted lab time.
Gaussian 16w is suitable for:
Unauthorized installers frequently contain ransomware, spyware, or keyloggers.
Before running significant jobs, configure default memory and core usage. This can be done via:
Gaussian 16W (G16W) is a commercial electronic structure modeling program for Windows systems. Because it is proprietary software, it is not available for free public download; users must purchase a license or obtain access through an academic or commercial institution. Pricing for Gaussian Products
