(9/10 for advanced users, 6/10 for beginners)
The is a modern build that takes advantage of >4GB RAM and modern CPU instructions (AVX2, AVX-512) without being limited by 32-bit address space. megui 64 bit
| Feature | 32-bit (Legacy) | 64-bit (Modern) | |--------|----------------|-----------------| | RAM usage | Limited to ~2-3GB per process | Use as much as needed (8GB, 32GB, 64GB) | | x265 encoding | Crashes on high-resolution/10-bit | Stable for 4K/8K/12-bit | | AviSynth+ | Only with 32-bit plugins | Full native 64-bit plugin support | | VapourSynth | No | Yes (preferred for 64-bit scripting) | | Speed | Good | Same or better (due to modern compiler optimizations) | (9/10 for advanced users, 6/10 for beginners) The
MeGUI remains one of the most powerful, open-source video transcoding tools available for Windows, particularly for users who demand precise control over their encoding process. As of 2026, the transition to has become the standard, offering significant performance improvements and compatibility with modern high-definition codecs. What is MeGUI 64-Bit? What is MeGUI 64-Bit