Linux Power Management Issues Limit Nvidia RTX Spark GPU Performance
November 4, 2026
Nvidia RTX Spark laptops experience a GPU clock speed collapse from 2.2 GHz on Windows to 780 MHz on Linux. This occurs because the Nvidia Platform Controllers and Framework, which manages power delivery, lacks a Linux equivalent, reducing inference performance from 65 to 14 tokens per second on 120B parameter models.
HOW THIS AFFECTS YOU
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builderYou should expect significantly lower inference throughput when developing on Linux-based workstations using this hardware.