Feature: High Efficiency Video Coding. Benefit: HEVC is the successor to the standard H.264 (AVC). Its main feature is that it offers significantly better compression. It can deliver the same video quality as H.264 but at roughly half the bitrate (file size), or much higher quality at the same file size.
If you installed UserHEVC and it isn't working as the best codec, check these final two boxes: userhevc best
Do not use random mirrors. The best source is the official GitHub repository or the VideoHelp tools section. Look for the "HEVC Decoder (UserHEVC) x64" latest stable release (version 1.4.5 or higher maintains the best memory management). Are you running 64-bit Windows
Run the installer. Ensure you check the box labeled "Enable Hardware Acceleration (DXVA2/D3D11)" during setup. This is the magic switch. If you skip it, you are just using software mode, which defeats the purpose of "best performance." Step 2: Download the Correct UserHEVC Package Do
This report evaluates the performance of the RHEVC (Reference HEVC) encoder when configured with "Best" quality presets. The objective was to determine the trade-offs between encoding speed, compression efficiency (BD-Rate), and visual fidelity. Results indicate that while the "Best" preset significantly increases computational load, it yields superior compression ratios compared to standard presets, making it ideal for archival and 4K/8K delivery workflows where bandwidth is critical.
Whether you have an NVIDIA RTX 4080, an AMD Radeon, or an Intel Arc GPU, UserHEVC finds the right hardware decoder. It supports:
The Microsoft store version often fails to engage Intel Quick Sync properly, leading to dropped frames. UserHEVC does not.