# Proteus Natural not supported on Mac Studio with M1 Ultra 64 core GPU chip

**URL:** <https://community.topazlabs.com/t/proteus-natural-not-supported-on-mac-studio-with-m1-ultra-64-core-gpu-chip/104099>\
**Category:** Bugs and Issues\
**Tags:** investigating\
**Created:** [July 21, 2026, 4:36am UTC](https://community.topazlabs.com/t/proteus-natural-not-supported-on-mac-studio-with-m1-ultra-64-core-gpu-chip/104099 "2026-07-21T04:36:40Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Ted-Leeds](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/t/85e7bf/32.png) [@Ted-Leeds](https://community.topazlabs.com/u/Ted-Leeds)\
**Post date:** [July 21, 2026, 10:54am UTC](https://community.topazlabs.com/t/proteus-natural-not-supported-on-mac-studio-with-m1-ultra-64-core-gpu-chip/104099/2 "2026-07-21T10:54:45Z")

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I had the same problem. This forum solved it. Have you tried setting the max memory to 10% in the app’s settings? (per Chamberhouse ) [[RESOLVED macOS 26.3] Grid-RGB artifacts with Starlight on macOS 26 (Apple silicon) - #39 by Ted-Leeds](https://community.topazlabs.com/t/resolved-macos-26-3-grid-rgb-artifacts-with-starlight-on-macos-26-apple-silicon/100274/39)

BTW, how is the M4 studio compared to the M1 Ultra speedwise with Topaz?, the figures look very similar.

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