Lasse
@lasse_ai
Running AI at home
2 x DGX Sparks 128GB
1 x RTX PRO 4500 Blackwell 32GB
GitHub:
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How much performance do you actually lose when capping a DGX Spark and where are the sweet spots?
As a follow-up to a previous post I decided to test it using my 2 x Sparks and likely the best model and quant currently available @MiaAI_lab's Deepseek V4.1 1017 EXL3.
Depending on your preference the sweet spots are 2200 MHz for close to original performance or 1900 MHz if you seriously want to reduce Temperatures and power consumption.
Anything below 1900 MHz and the Sparks start fighting with themselves.
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If you want to reduce energy usage, increase longevity or want the fans on your DGX Spark to spin up less, a good way to do it is capping the GPU clock to 2,200 MHz.
This was tested using @MiaAI_lab’s single spark Qwen Flash Next recipe.
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