AMD identified two scaling flaws in HandBrake that throttled transcoding on CPUs with more than 64 logical threads. One flaw left excess cores idle, the other broke workloads into tiny jobs, inflating scheduling overhead and even causing up to 60% slowdown as cores increased. The company patched both issues in version 1.11.0.

Benchmark data released by AMD shows a Threadripper 7980X (64‑core/128‑thread) paired with a Radeon RX 9070 XT and 128 GB DDR5‑5600 achieving up to 215% faster H.264 720p encoding, 203% gain on 8K HEVC 8‑bit, and 105% improvement on 8K 60 fps 10‑bit HEVC. The Threadripper PRO 9995WX (96 cores) posted gains as high as 181% on comparable tests.

Upgrading to HandBrake 1.11.0 requires no new presets or workflow adjustments; the fixes operate transparently behind the scenes. By finally letting every core contribute, creators can slash rendering times on 8K and high‑bitrate projects, turning workstation‑grade CPUs into viable solutions for demanding streaming pipelines.

The patch underscores AMD’s strategy of boosting software compatibility for its high‑core roadmap, ensuring that raw silicon translates into real‑world productivity. With HandBrake now scaling efficiently, professionals targeting ultra‑high‑definition content gain a tangible performance edge without additional hardware investment.