The Mac's window server uses Metal 2 optimizations to make window animations like Mission Control much smoother. Metal offers up to 10x better draw call throughput improvements like driver optimizations, indirect argument buffers, sampler arrays, resource heaps, and more. HEVC software encoding is available for all Macs in High Sierra, but newer models include HEVC hardware acceleration.Īlong with a new Apple File System, macOS High Sierra introduces Metal 2, the next-generation version of Apple's Metal graphics API. High Sierra includes High Efficiency Video Encoding (HEVC, aka H.265), which preserves better detail and color while also introducing much improved compression compared to H.264. APFS is ultra responsive and brings major performance improvements for Macs. It introduces features like native encryption, safe document saves, stable snapshots, and crash protection.

APFS is safe, secure, and optimized for modern storage systems like solid state drives. High Sierra is about deep technologies that provide a platform for future innovation while also introducing new technologies to make the Mac more reliable, capable, and responsive.Ī more modern file system, Apple File System (APFS), is the new default in macOS High Sierra. With macOS High Sierra, Apple says it's focusing on the fundamentals: data, video, and graphics. macOS High Sierra, as the name suggests, is a follow-up to macOS Sierra and is largely designed to improve on macOS Sierra through major under-the-hood updates and a handful of outward-facing changes. Apple introduced macOS High Sierra at the 2017 Worldwide Developers Conference in June.

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