NVIDIA has officially embraced the Windows on ARM platform with the arrival of its RTX Spark, with the chipset expected to be found in a bevy of notebooks this fall. Perhaps the most advantageous aspect of this silicon is how it’ll enable the industry to push forth with lighter laptop designs thanks to its efficiency. No longer will manufacturers need to rely on a multitude of heatpipes to tame the CPU and GPU, with an example being Microsoft’s Surface Laptop Ultra, whose TDP for the RTX Spark is just 110W.
The lack of an elaborate cooling solution on the Surface Laptop Ultra means RTX Spark-powered notebooks will be significantly lighter
An ARM-based chip's biggest strength is power efficiency, and with the RTX Spark's TDP reportedly set at 110W in the Surface Laptop Ultra, it's lower than the power limit for top-tier laptop RTX 5090 and RTX 5080 GPUs, which can run at 175W in gaming laptops that are equipped with beefy cooling solutions.
Additionally, the CPU pairing with these GPUs can often exceed the 100W power limit if the cooling solution allows, making a multi-heatpipe cooling solution all the more mandatory. With the RTX Spark, notebooks like the Surface Laptop Ultra won't just run cooler and quieter, but that 110W TDP also means that notebooks with this chipset will be lighter, as there will be fewer heatpipes to tame the silicon.
What's interesting to note is that 110W isn't even the RTX Spark's highest TDP, as ASUS notebooks are rated to operate at 140W, allowing slightly better combined CPU and GPU performance. Also, depending on how much software control NVIDIA allows, it'll be possible to undervolt the Blackwell GPU using programs like MSI Afterburner.
This option will allow the RTX Spark to consume even less power, enabling the Surface Laptop Ultra to run even quieter. It's unclear if these less robust thermal solutions on the Surface Laptop Ultra can keep the RTX Spark cool, because even Apple Silicon MacBook Pro models featuring the M5 Pro and M5 Max can effortlessly reach 100 degrees Celsius and higher, depending on the workload fired up. Regardless, if this is what future notebooks will be packing, then we’re all the more ready.
News Source: Tom’s Hardware
About the author: Omar Sohail is a reporter and analyst for Wccftech's mobile section, specializing in the technology and business of the mobile industry. His expertise lies in the intricate hardware supply chain, covering developments in semiconductor manufacturing, chip lithography, and camera sensor technology.
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